Merge pull request #101 from vulcanize/geth_1_10_21_wip

updates for geth 1.10.21

.github/workflows/on-master.yaml

@@ -1,25 +0,0 @@
-name: Docker Compose Build
-
-on:
-  push:
-    branches:
-      - master
-
-jobs:
-  build:
-    name: Run docker build
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Get the version
-        id: vars
-        run: echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
-      - name: Run docker build
-        run: make docker-build
-      - name: Tag docker image
-        run: docker tag vulcanize/eth-statediff-service docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
-      - name: Docker Login
-        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
-      - name: Docker Push
-        run: docker push docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
-

.github/workflows/on-pr.yaml

@@ -1,12 +0,0 @@
-name: Docker Build
-
-on: [pull_request]
-
-jobs:
-  build:
-    name: Run docker build
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Run docker build
-        run: make docker-build

.github/workflows/on-publish-pr.yml

@@ -0,0 +1,69 @@
+name: Publish Docker image
+on:
+  release:
+    types: [published]
+  pull_request:
+jobs:
+  pre_job:
+    # continue-on-error: true # Uncomment once integration is finished
+    runs-on: ubuntu-latest
+    # Map a step output to a job output
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v4
+        with:
+          # All of these options are optional, so you can remove them if you are happy with the defaults
+          concurrent_skipping: "never"
+          skip_after_successful_duplicate: "true"
+          do_not_skip: '["workflow_dispatch", "schedule"]'
+  run-tests:
+    if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+    needs: pre_job
+    uses: ./.github/workflows/tests.yml
+  build:
+    name: Run docker build
+    runs-on: ubuntu-latest
+    if: |
+      always() &&
+      (needs.run-tests.result == 'success' || needs.run-tests.result == 'skipped') &&
+      github.event_name == 'release'
+    needs: run-tests
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get the version
+        id: vars
+        run: echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
+      - name: Run docker build
+        run: make docker-build
+      - name: Tag docker image
+        run: docker tag vulcanize/eth-statediff-service docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
+      - name: Docker Login
+        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
+      - name: Docker Push
+        run: docker push docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
+  push_to_registries:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    if: |
+      always() &&
+      (needs.build.result == 'success') &&
+      github.event_name == 'release'
+    needs: build
+    steps:
+      - name: Get the version
+        id: vars
+        run: |
+          echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
+          echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
+      - name: Docker Login to Github Registry
+        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
+      - name: Docker Pull
+        run: docker pull docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
+      - name: Docker Login to Docker Registry
+        run: echo ${{ secrets.VULCANIZEJENKINS_PAT }} | docker login -u vulcanizejenkins --password-stdin
+      - name: Tag docker image
+        run: docker tag docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}} vulcanize/eth-statediff-service:${{steps.vars.outputs.tag}}
+      - name: Docker Push to Docker Hub
+        run: docker push vulcanize/eth-statediff-service:${{steps.vars.outputs.tag}}

.github/workflows/publish.yaml

@@ -1,29 +0,0 @@
-name: Publish Docker image
-on:
-  release:
-    types: [published]
-jobs:
-  push_to_registries:
-    name: Push Docker image to Docker Hub
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Get the version
-        run: |
-          echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
-          echo ::set-output name=sha::$(echo ${GITHUB_SHA})
-        id: vars
-      - name: Docker Login to Docker Registry
-        uses: docker/login-action@v1
-        with:
-          username: vulcanizejenkins
-          password: ${{ secrets.VULCANIZEJENKINS_PAT }}
-      - name: Build and push
-        uses: docker/build-push-action@v2
-        with:
-          context: .
-          push: true
-          tags: vulcanize/eth-statediff-service:${{ steps.vars.outputs.tag }}
-          build-args: |
-            GIT_COMMIT=${{ steps.vars.outputs.sha }}
-

.github/workflows/tests.yml

@@ -0,0 +1,37 @@
+name: Tests for Geth that are used in multiple jobs.
+
+on:
+  workflow_call:
+
+env:
+  GOPATH: /tmp/go
+
+jobs:
+  build:
+    name: Run docker build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run docker build
+        run: make docker-build
+
+  statediff-unit-test:
+    name: Run statediff unit tests
+    runs-on: ubuntu-latest
+    env:
+      GO111MODULE: on
+    steps:
+      - name: Create GOPATH
+        run: mkdir -p /tmp/go
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+          check-latest: true
+
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Run unit tests
+        run: |
+          make test

.gitignore

@@ -1,2 +1,3 @@
 .idea/
 eth-statediff-service
+.vscode

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.16-alpine as builder
+FROM golang:1.18-alpine as builder
 
 RUN apk --update --no-cache add make git g++ linux-headers
 # DEBUG

README.md

@@ -2,13 +2,13 @@
 
 [![Go Report Card](https://goreportcard.com/badge/github.com/vulcanize/eth-statediff-service)](https://goreportcard.com/report/github.com/vulcanize/eth-statediff-service)
 
->> standalone statediffing service ontop of LevelDB
+>> standalone statediffing service on top of LevelDB
 
 Purpose:
 
 Stand up a statediffing service directly on top of a go-ethereum LevelDB instance.
 This service can serve historical state data over the same rpc interface as
-[statediffing geth](https://github.com/vulcanize/go-ethereum/releases/tag/v1.9.11-statediff-0.0.5) without needing to run a full node
+[statediffing geth](https://github.com/vulcanize/go-ethereum) without needing to run a full node.
 
 ## Setup
 
@@ -18,6 +18,112 @@ Build the binary:
 make build
 ```
 
+## Configuration
+
+An example config file:
+
+```toml
+[leveldb]
+    # LevelDB access mode <local | remote>
+    mode = "local"  # LVLDB_MODE
+
+    # in local mode
+    # LevelDB paths
+    path    = "/Users/user/Library/Ethereum/geth/chaindata"         # LVLDB_PATH
+    ancient = "/Users/user/Library/Ethereum/geth/chaindata/ancient" # LVLDB_ANCIENT
+
+    # in remote mode
+    # URL for leveldb-ethdb-rpc endpoint
+    url = "http://127.0.0.1:8082/"  # LVLDB_URL
+
+[server]
+    ipcPath  = ".ipc"           # SERVICE_IPC_PATH
+    httpPath = "127.0.0.1:8545" # SERVICE_HTTP_PATH
+
+[statediff]
+    prerun          = true  # STATEDIFF_PRERUN
+    serviceWorkers  = 1     # STATEDIFF_SERVICE_WORKERS
+    workerQueueSize = 1024  # STATEDIFF_WORKER_QUEUE_SIZE
+    trieWorkers     = 4     # STATEDIFF_TRIE_WORKERS
+
+[prerun]
+    only = false    # PRERUN_ONLY
+
+    # to perform prerun in a specific range (optional)
+    start = 0   # PRERUN_RANGE_START
+    stop  = 100 # PRERUN_RANGE_STOP
+
+    # to perform prerun over multiple ranges (optional)
+    ranges = [
+        [101, 1000]
+    ]
+
+    # statediffing params for prerun
+    [prerun.params]
+        intermediateStateNodes   = true # PRERUN_INTERMEDIATE_STATE_NODES
+        intermediateStorageNodes = true # PRERUN_INTERMEDIATE_STORAGE_NODES
+        includeBlock             = true # PRERUN_INCLUDE_BLOCK
+        includeReceipts          = true # PRERUN_INCLUDE_RECEIPTS
+        includeTD                = true # PRERUN_INCLUDE_TD
+        includeCode              = true # PRERUN_INCLUDE_CODE
+        watchedAddresses         = []
+
+[log]
+    file  = ""      # LOG_FILE_PATH
+    level = "info"  # LOG_LEVEL
+
+[database]
+    # output type <postgres | file | dump>
+    type = "postgres"
+
+    # with postgres type
+    # db credentials
+    name     = "vulcanize_test" # DATABASE_NAME
+    hostname = "localhost"      # DATABASE_HOSTNAME
+    port     = 5432             # DATABASE_PORT
+    user     = "vulcanize"      # DATABASE_USER
+    password = "..."            # DATABASE_PASSWORD
+    driver   = "sqlx"           # DATABASE_DRIVER_TYPE <sqlx | pgx>
+
+    # with file type
+    # file mode <sql | csv>
+    fileMode = "csv"    # DATABASE_FILE_MODE
+
+    # with SQL file mode
+    filePath = ""   # DATABASE_FILE_PATH
+
+    # with CSV file mode
+    fileCsvDir = "output_dir" # DATABASE_FILE_CSV_DIR
+
+    # with dump type
+    # <stdout | stderr | discard>
+    dumpDestination = ""    # DATABASE_DUMP_DST
+
+[cache]
+    database = 1024 # DB_CACHE_SIZE_MB
+    trie     = 1024 # TRIE_CACHE_SIZE_MB
+
+[prom]
+    # prometheus metrics
+    metrics  = true         # PROM_METRICS
+    http     = true         # PROM_HTTP
+    httpAddr = "localhost"  # PROM_HTTP_ADDR
+    httpPort = "8889"       # PROM_HTTP_PORT
+    dbStats = true          # PROM_DB_STATS
+
+[ethereum]
+    # node info
+    nodeID       = ""                       # ETH_NODE_ID
+    clientName   = "eth-statediff-service"  # ETH_CLIENT_NAME
+    networkID    = 1                        # ETH_NETWORK_ID
+    chainID      = 1                        # ETH_CHAIN_ID
+    genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3" # ETH_GENESIS_BLOCK
+
+    # path to custom chain config file (optional)
+    # keep chainID same as that in chain config file
+    chainConfig  = "./chain.json"           # ETH_CHAIN_CONFIG
+```
+
 ### Local Setup
 
 * Create a chain config file `chain.json` according to chain config in genesis json file used by local geth.
@@ -42,142 +148,180 @@ make build
   }
   ```
 
-* Change the following in [config file](./environments/config.toml)
-
-    ```toml
-    [leveldb]
-        mode = "local"
-        # Path to geth LevelDB data
-        path = "/path-to-local-geth-data/chaindata"
-        ancient = "/path-to-local-geth-data/chaindata/ancient"
-
-    [ethereum]
-        chainConfig = "./chain.json" # Path to custom chain config file
-        chainID = 41337 # Same chain ID as in chain.json
-
-    [database]
-        # Update database config
-        name     = "vulcanize_testing"
-        hostname = "localhost"
-        port     = 5432
-        user     = "postgres"
-        password = "postgres"
-        type = "postgres"
-    ```
-
-* To write statediff for a range of block make changes in [config file](./environments/config.toml)
-    ```toml
-    [prerun]
-        only = false
-        ranges = [
-            [8, 15] # Block number range for which to write statediff.
-        ]
-    ```
-
-* To use remote LevelDB RPC endpoint change the following in [config file](./environments/config.toml)
-    ```toml
-    [leveldb]
-        mode = "remote"
-        url = "http://127.0.0.1:8082/" # Remote LevelDB RPC url
-    ```
+  Provide the path to the above file in the config.
 
 ## Usage
 
+* Create / update the config file (refer to example config above).
+
 ### `serve`
 
-To serve state diffs over RPC:
+* To serve the statediff RPC API:
 
-`eth-statediff-service serve --config=<config path>`
+    ```bash
+    ./eth-statediff-service serve --config=<config path>
+    ```
 
-Example:
+    Example:
 
-```bash
-./eth-statediff-service serve --config environments/config.toml
-```
+    ```bash
+    ./eth-statediff-service serve --config environments/config.toml
+    ```
 
-Available RPC methods are:
-  * `statediff_stateTrieAt()`
-  * `statediff_streamCodeAndCodeHash()`
-  * `statediff_stateDiffAt()`
-  * `statediff_writeStateDiffAt()`
-  * `statediff_writeStateDiffsInRange()`
+* Available RPC methods:
+    * `statediff_stateTrieAt()`
+    * `statediff_streamCodeAndCodeHash()`
+    * `statediff_stateDiffAt()`
+    * `statediff_writeStateDiffAt()`
+    * `statediff_writeStateDiffsInRange()`
 
-e.g. `curl -X POST -H 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"statediff_writeStateDiffsInRange","params":['"$BEGIN"', '"$END"', {"intermediateStateNodes":true,"intermediateStorageNodes":true,"includeBlock":true,"includeReceipts":true,"includeTD":true,"includeCode":true}],"id":1}' "$HOST":"$PORT"`
+    Example:
 
-The process can be configured locally with sets of ranges to process as a "prerun" to processing directed by the server endpoints.
-This is done by turning "prerun" on in the config (`statediff.prerun = true`) and defining ranged and params in the
-`prerun` section of the config as shown below.
+    ```bash
+    curl -X POST -H 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"statediff_writeStateDiffsInRange","params":['"$BEGIN"', '"$END"', {"intermediateStateNodes":true,"intermediateStorageNodes":true,"includeBlock":true,"includeReceipts":true,"includeTD":true,"includeCode":true}],"id":1}' "$HOST":"$PORT"
+    ```
 
-## Configuration
+* Prerun:
+    * The process can be configured locally with sets of ranges to process as a "prerun" to processing directed by the server endpoints.
+    * This is done by turning "prerun" on in the config (`statediff.prerun = true`) and defining ranges and params in the
+`prerun` section of the config.
+    * Set the range using `prerun.start` and `prerun.stop`. Use `prerun.ranges` if prerun on more than one range is required.
 
-An example config file:
+* NOTE: Currently, `params.includeTD` must be set to / passed as `true`.
 
-```toml
-[leveldb]
-    mode = "local"
-    # path and ancient LevelDB paths required in local mode
-    path = "/Users/user/Library/Ethereum/geth/chaindata"
-    ancient = "/Users/user/Library/Ethereum/geth/chaindata/ancient"
-    # url for leveldb-ethdb-rpc endpoint required in remote mode
-    url = "http://127.0.0.1:8082/"
+## Monitoring
 
-[server]
-    ipcPath = ".ipc"
-    httpPath = "127.0.0.1:8545"
+* Enable metrics using config parameters `prom.metrics` and `prom.http`.
+* `eth-statediff-service` exposes following prometheus metrics at `/metrics` endpoint:
+    * `ranges_queued`: Number of range requests currently queued.
+    * `loaded_height`: The last block that was loaded for processing.
+    * `processed_height`: The last block that was processed.
+    * `stats.t_block_load`: Block loading time.
+    * `stats.t_block_processing`: Block (header, uncles, txs, rcts, tx trie, rct trie) processing time.
+    * `stats.t_state_processing`: State (state trie, storage tries, and code) processing time.
+    * `stats.t_postgres_tx_commit`: Postgres tx commit time.
+    * `http.count`: HTTP request count.
+    * `http.duration`: HTTP request duration.
+    * `ipc.count`: Unix socket connection count.
 
-[statediff]
-    prerun = true
-    serviceWorkers = 1
-    workerQueueSize = 1024
-    trieWorkers = 4
+## Tests
 
-[prerun]
-    only = false
-    ranges = [
-        [0, 1000]
-    ]
-    [prerun.params]
-        intermediateStateNodes = true
-        intermediateStorageNodes = true
-        includeBlock = true
-        includeReceipts = true
-        includeTD = true
-        includeCode = true
-        watchedAddresses = []
+* Run unit tests:
 
-[log]
-    file = ""
-    level = "info"
+    ```bash
+    make test
+    ```
 
-[eth]
-    chainID = 1
+## Import output data in file mode into a database
 
-[database]
-    name     = "vulcanize_test"
-    hostname = "localhost"
-    port     = 5432
-    user     = "vulcanize"
-    password = "..."
-    type = "postgres"
-    driver = "sqlx"
-    dumpDestination = ""
-    filePath = ""
+* When `eth-statediff-service` is run in file mode (`database.type`) the output is in form of a SQL file or multiple CSV files.
 
-[cache]
-    database = 1024
-    trie = 1024
+* Assuming the output files are located in host's `./output_dir` directory.
 
-[prom]
-    dbStats = false
-    metrics = true
-    http = true
-    httpAddr = "localhost"
-    httpPort = "8889"
+* Create a directory to store post-processed output:
 
-[ethereum]
-    nodeID = ""
-    clientName = "eth-statediff-service"
-    genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"
-    networkID = 1
-    chainID = 1
-```
+    ```bash
+    mkdir -p output_dir/processed_output
+    ```
+
+### SQL
+
+* De-duplicate data:
+
+    ```bash
+    sort -u output_dir/statediff.sql -o output_dir/processed_output/deduped-statediff.sql
+    ```
+
+* Copy over the post-processed output files to the DB server (say in `/output_dir`).
+
+* Run the following to import data:
+
+    ```bash
+    psql -U <DATABASE_USER> -h <DATABASE_HOSTNAME> -p <DATABASE_PORT> <DATABASE_NAME> --set ON_ERROR_STOP=on -f /output_dir/processed_output/deduped-statediff.sql
+    ```
+
+### CSV
+
+* De-duplicate data and copy to post-processed output directory:
+
+    ```bash
+    # public.blocks
+    sort -u output_dir/public.blocks.csv -o output_dir/processed_output/deduped-public.blocks.csv
+
+    # eth.header_cids
+    sort -u output_dir/eth.header_cids.csv -o output_dir/processed_output/deduped-eth.header_cids.csv
+
+    # eth.uncle_cids
+    sort -u output_dir/eth.uncle_cids.csv -o output_dir/processed_output/deduped-eth.uncle_cids.csv
+
+    # eth.transaction_cids
+    sort -u output_dir/eth.transaction_cids.csv -o output_dir/processed_output/deduped-eth.transaction_cids.csv
+
+    # eth.access_list_elements
+    sort -u output_dir/eth.access_list_elements.csv -o output_dir/processed_output/deduped-eth.access_list_elements.csv
+
+    # eth.receipt_cids
+    sort -u output_dir/eth.receipt_cids.csv -o output_dir/processed_output/deduped-eth.receipt_cids.csv
+
+    # eth.log_cids
+    sort -u output_dir/eth.log_cids.csv -o output_dir/processed_output/deduped-eth.log_cids.csv
+
+    # eth.state_cids
+    sort -u output_dir/eth.state_cids.csv -o output_dir/processed_output/deduped-eth.state_cids.csv
+
+    # eth.storage_cids
+    sort -u output_dir/eth.storage_cids.csv -o output_dir/processed_output/deduped-eth.storage_cids.csv
+
+    # eth.state_accounts
+    sort -u output_dir/eth.state_accounts.csv -o output_dir/processed_output/deduped-eth.state_accounts.csv
+
+    # public.nodes
+    cp output_dir/public.nodes.csv output_dir/processed_output/public.nodes.csv
+    ```
+
+* Copy over the post-processed output files to the DB server (say in `/output_dir`).
+
+* Start `psql` to run the import commands:
+
+    ```bash
+    psql -U <DATABASE_USER> -h <DATABASE_HOSTNAME> -p <DATABASE_PORT> <DATABASE_NAME>
+    ```
+
+* Run the following to import data:
+
+    ```bash
+    # public.nodes
+    COPY public.nodes FROM '/output_dir/processed_output/public.nodes.csv' CSV;
+
+    # public.nodes
+    COPY public.blocks FROM '/output_dir/processed_output/deduped-public.blocks.csv' CSV;
+
+    # eth.header_cids
+    COPY eth.header_cids FROM '/output_dir/processed_output/deduped-eth.header_cids.csv' CSV;
+
+    # eth.uncle_cids
+    COPY eth.uncle_cids FROM '/output_dir/processed_output/deduped-eth.uncle_cids.csv' CSV;
+
+    # eth.transaction_cids
+    COPY eth.transaction_cids FROM '/output_dir/processed_output/deduped-eth.transaction_cids.csv' CSV FORCE NOT NULL dst;
+
+    # eth.access_list_elements
+    COPY eth.access_list_elements FROM '/output_dir/processed_output/deduped-eth.access_list_elements.csv' CSV;
+
+    # eth.receipt_cids
+    COPY eth.receipt_cids FROM '/output_dir/processed_output/deduped-eth.receipt_cids.csv' CSV FORCE NOT NULL post_state, contract, contract_hash;
+
+    # eth.log_cids
+    COPY eth.log_cids FROM '/output_dir/processed_output/deduped-eth.log_cids.csv' CSV FORCE NOT NULL topic0, topic1, topic2, topic3;
+
+    # eth.state_cids
+    COPY eth.state_cids FROM '/output_dir/processed_output/deduped-eth.state_cids.csv' CSV FORCE NOT NULL state_leaf_key;
+
+    # eth.storage_cids
+    COPY eth.storage_cids FROM '/output_dir/processed_output/deduped-eth.storage_cids.csv' CSV FORCE NOT NULL storage_leaf_key;
+
+    # eth.state_accounts
+    COPY eth.state_accounts FROM '/output_dir/processed_output/deduped-eth.state_accounts.csv' CSV;
+    ```
+
+* NOTE: `COPY` command on CSVs inserts empty strings as `NULL` in the DB. Passing `FORCE_NOT_NULL <COLUMN_NAME>` forces it to insert empty strings instead. This is required to maintain compatibility of the imported statediff data with the data generated in `postgres` mode. Reference: https://www.postgresql.org/docs/14/sql-copy.html

cmd/env.go

@@ -68,10 +68,12 @@ const (
 	DATABASE_USER     = "DATABASE_USER"
 	DATABASE_PASSWORD = "DATABASE_PASSWORD"
 
-	DATABASE_TYPE        = "DATABASE_TYPE"
-	DATABASE_DRIVER_TYPE = "DATABASE_DRIVER_TYPE"
-	DATABASE_DUMP_DST    = "DATABASE_DUMP_DST"
-	DATABASE_FILE_PATH   = "DATABASE_FILE_PATH"
+	DATABASE_TYPE         = "DATABASE_TYPE"
+	DATABASE_DRIVER_TYPE  = "DATABASE_DRIVER_TYPE"
+	DATABASE_DUMP_DST     = "DATABASE_DUMP_DST"
+	DATABASE_FILE_PATH    = "DATABASE_FILE_PATH"
+	DATABASE_FILE_MODE    = "DATABASE_FILE_MODE"
+	DATABASE_FILE_CSV_DIR = "DATABASE_FILE_CSV_DIR"
 
 	DATABASE_MAX_IDLE_CONNECTIONS = "DATABASE_MAX_IDLE_CONNECTIONS"
 	DATABASE_MAX_OPEN_CONNECTIONS = "DATABASE_MAX_OPEN_CONNECTIONS"
@@ -109,7 +111,9 @@ func init() {
 	viper.BindEnv("database.type", DATABASE_TYPE)
 	viper.BindEnv("database.driver", DATABASE_DRIVER_TYPE)
 	viper.BindEnv("database.dumpDestination", DATABASE_DUMP_DST)
+	viper.BindEnv("database.fileMode", DATABASE_FILE_MODE)
 	viper.BindEnv("database.filePath", DATABASE_FILE_PATH)
+	viper.BindEnv("database.fileCsvDir", DATABASE_FILE_CSV_DIR)
 
 	viper.BindEnv("cache.database", DB_CACHE_SIZE_MB)
 	viper.BindEnv("cache.trie", TRIE_CACHE_SIZE_MB)

cmd/root.go

@@ -140,7 +140,9 @@ func init() {
 	rootCmd.PersistentFlags().String("database-type", "postgres", "database type (currently supported: postgres, dump)")
 	rootCmd.PersistentFlags().String("database-driver", "sqlx", "database driver type (currently supported: sqlx, pgx)")
 	rootCmd.PersistentFlags().String("database-dump-dst", "stdout", "dump destination (for database-type=dump; options: stdout, stderr, discard)")
-	rootCmd.PersistentFlags().String("database-file-path", "", "full file path (for database-type=file)")
+	rootCmd.PersistentFlags().String("database-file-mode", "csv", "mode for writing file (for database-type=file; options: csv, sql)")
+	rootCmd.PersistentFlags().String("database-file-csv-dir", "", "full directory path (for database-file-mode=csv)")
+	rootCmd.PersistentFlags().String("database-file-path", "", "full file path (for database-file-mode=sql)")
 
 	rootCmd.PersistentFlags().String("eth-node-id", "", "eth node id")
 	rootCmd.PersistentFlags().String("eth-client-name", "eth-statediff-service", "eth client name")
@@ -198,6 +200,8 @@ func init() {
 	viper.BindPFlag("database.type", rootCmd.PersistentFlags().Lookup("database-type"))
 	viper.BindPFlag("database.driver", rootCmd.PersistentFlags().Lookup("database-driver"))
 	viper.BindPFlag("database.dumpDestination", rootCmd.PersistentFlags().Lookup("database-dump-dst"))
+	viper.BindPFlag("database.fileMode", rootCmd.PersistentFlags().Lookup("database-file-mode"))
+	viper.BindPFlag("database.fileCsvDir", rootCmd.PersistentFlags().Lookup("database-file-csv-dir"))
 	viper.BindPFlag("database.filePath", rootCmd.PersistentFlags().Lookup("database-file-path"))
 
 	viper.BindPFlag("ethereum.nodeID", rootCmd.PersistentFlags().Lookup("eth-node-id"))
@@ -302,11 +306,28 @@ func getConfig(nodeInfo node.Info) (interfaces.Config, error) {
 	switch dbType {
 	case shared.FILE:
 		logWithCommand.Info("starting in sql file writing mode")
+
+		fileModeStr := viper.GetString("database.fileMode")
+		fileMode, err := file.ResolveFileMode(fileModeStr)
+		if err != nil {
+			utils.Fatalf("%v", err)
+		}
+
 		filePathStr := viper.GetString("database.filePath")
-		if filePathStr == "" {
+		if fileMode == file.SQL && filePathStr == "" {
 			logWithCommand.Fatal("when operating in sql file writing mode a file path must be provided")
 		}
-		indexerConfig = file.Config{FilePath: filePathStr}
+
+		fileCsvDirStr := viper.GetString("database.fileCsvDir")
+		if fileMode == file.CSV && fileCsvDirStr == "" {
+			logWithCommand.Fatal("when operating in csv file writing mode a directory path must be provided")
+		}
+
+		indexerConfig = file.Config{
+			Mode:      fileMode,
+			OutputDir: fileCsvDirStr,
+			FilePath:  filePathStr,
+		}
 	case shared.DUMP:
 		logWithCommand.Info("starting in data dump mode")
 		dumpDstStr := viper.GetString("database.dumpDestination")

cmd/util.go

@@ -6,12 +6,13 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/statediff"
-	gethsd "github.com/ethereum/go-ethereum/statediff"
 	ind "github.com/ethereum/go-ethereum/statediff/indexer"
+	"github.com/ethereum/go-ethereum/statediff/indexer/shared"
 	"github.com/ethereum/go-ethereum/trie"
 	"github.com/spf13/viper"
 
 	sd "github.com/vulcanize/eth-statediff-service/pkg"
+	"github.com/vulcanize/eth-statediff-service/pkg/prom"
 )
 
 type blockRange [2]uint64
@@ -78,11 +79,16 @@ func createStateDiffService() (sd.StateDiffService, error) {
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
+
 	logWithCommand.Info("Creating statediff indexer")
-	_, indexer, err := ind.NewStateDiffIndexer(context.Background(), chainConf, nodeInfo, conf)
+	db, indexer, err := ind.NewStateDiffIndexer(context.Background(), chainConf, nodeInfo, conf)
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
+	if conf.Type() == shared.POSTGRES && viper.GetBool("prom.dbStats") {
+		prom.RegisterDBCollector(viper.GetString("database.name"), db)
+	}
+
 	logWithCommand.Info("Creating statediff service")
 	sdConf := sd.Config{
 		ServiceWorkers:  viper.GetUint("statediff.serviceWorkers"),
@@ -97,7 +103,7 @@ func setupPreRunRanges() []sd.RangeRequest {
 	if !viper.GetBool("statediff.prerun") {
 		return nil
 	}
-	preRunParams := gethsd.Params{
+	preRunParams := statediff.Params{
 		IntermediateStateNodes:   viper.GetBool("prerun.params.intermediateStateNodes"),
 		IntermediateStorageNodes: viper.GetBool("prerun.params.intermediateStorageNodes"),
 		IncludeBlock:             viper.GetBool("prerun.params.includeBlock"),

environments/config.toml

@@ -2,7 +2,6 @@
     mode = "local"
     path = "/app/geth-rw/chaindata"
     ancient = "/app/geth-rw/chaindata/ancient"
-    url = "http://127.0.0.1:8082/"
 
 [server]
     ipcPath = ""
@@ -31,31 +30,29 @@
     level = "info"
 
 [database]
+    type = "postgres"
     name     = ""
     hostname = ""
     port     = 5432
     user     = ""
     password = ""
-    type = "postgres"
     driver = "sqlx"
-    dumpDestination = ""
-    filePath = ""
 
 [cache]
     database = 1024
     trie = 4096
 
 [prom]
-    dbStats = false
     metrics = true
     http = true
     httpAddr = "0.0.0.0"
     httpPort = 9100
+    dbStats = false
 
 [ethereum]
-    chainConfig = ""
     nodeID = ""
     clientName = "eth-statediff-service"
     genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"
     networkID = 1
     chainID = 1
+    chainConfig = ""

go.mod

@@ -1,16 +1,138 @@
 module github.com/vulcanize/eth-statediff-service
 
-go 1.16
+go 1.18
 
 require (
-	github.com/ethereum/go-ethereum v1.10.17
-	github.com/jmoiron/sqlx v1.2.0
+	github.com/ethereum/go-ethereum v1.10.21
+	github.com/jmoiron/sqlx v1.2.0 // indirect
 	github.com/prometheus/client_golang v1.4.0
 	github.com/sirupsen/logrus v1.7.0
 	github.com/spf13/cobra v1.3.0
 	github.com/spf13/viper v1.10.1
-	github.com/vulcanize/go-eth-state-node-iterator v1.0.1
-	github.com/vulcanize/leveldb-ethdb-rpc v0.1.1
+	github.com/vulcanize/go-eth-state-node-iterator v1.1.4
+	github.com/vulcanize/leveldb-ethdb-rpc v0.1.6
 )
 
-replace github.com/ethereum/go-ethereum v1.10.17 => github.com/vulcanize/go-ethereum v1.10.17-statediff-3.2.1
+require (
+	github.com/VictoriaMetrics/fastcache v1.6.0 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/deckarep/golang-set v1.8.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/deepmap/oapi-codegen v1.8.2 // indirect
+	github.com/edsrzf/mmap-go v1.0.0 // indirect
+	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff // indirect
+	github.com/georgysavva/scany v0.2.9 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang-jwt/jwt/v4 v4.3.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/graph-gophers/graphql-go v1.3.0 // indirect
+	github.com/hashicorp/go-bexpr v0.1.10 // indirect
+	github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/holiman/bloomfilter/v2 v2.0.3 // indirect
+	github.com/holiman/uint256 v1.2.0 // indirect
+	github.com/huin/goupnp v1.0.3 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/influxdata/influxdb v1.8.3 // indirect
+	github.com/influxdata/influxdb-client-go/v2 v2.4.0 // indirect
+	github.com/influxdata/line-protocol v0.0.0-20210311194329-9aa0e372d097 // indirect
+	github.com/ipfs/bbloom v0.0.4 // indirect
+	github.com/ipfs/go-block-format v0.0.3 // indirect
+	github.com/ipfs/go-cid v0.2.0 // indirect
+	github.com/ipfs/go-datastore v0.5.1 // indirect
+	github.com/ipfs/go-ipfs-blockstore v1.2.0 // indirect
+	github.com/ipfs/go-ipfs-ds-help v1.1.0 // indirect
+	github.com/ipfs/go-ipfs-util v0.0.2 // indirect
+	github.com/ipfs/go-ipld-format v0.4.0 // indirect
+	github.com/ipfs/go-log v1.0.5 // indirect
+	github.com/ipfs/go-log/v2 v2.1.3 // indirect
+	github.com/ipfs/go-metrics-interface v0.0.1 // indirect
+	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
+	github.com/jackc/pgconn v1.10.0 // indirect
+	github.com/jackc/pgio v1.0.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgproto3/v2 v2.1.1 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect
+	github.com/jackc/pgtype v1.8.1 // indirect
+	github.com/jackc/pgx/v4 v4.13.0 // indirect
+	github.com/jackc/puddle v1.1.3 // indirect
+	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
+	github.com/jbenet/goprocess v0.1.4 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	github.com/lib/pq v1.10.2 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/mattn/go-runewidth v0.0.9 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1 // indirect
+	github.com/minio/sha256-simd v1.0.0 // indirect
+	github.com/mitchellh/mapstructure v1.4.3 // indirect
+	github.com/mitchellh/pointerstructure v1.2.0 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/multiformats/go-base32 v0.0.3 // indirect
+	github.com/multiformats/go-base36 v0.1.0 // indirect
+	github.com/multiformats/go-multibase v0.0.3 // indirect
+	github.com/multiformats/go-multihash v0.1.0 // indirect
+	github.com/multiformats/go-varint v0.0.6 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/opentracing/opentracing-go v1.2.0 // indirect
+	github.com/pelletier/go-toml v1.9.4 // indirect
+	github.com/peterh/liner v1.1.1-0.20190123174540-a2c9a5303de7 // indirect
+	github.com/pganalyze/pg_query_go/v2 v2.1.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.9.1 // indirect
+	github.com/prometheus/procfs v0.0.8 // indirect
+	github.com/prometheus/tsdb v0.10.0 // indirect
+	github.com/rjeczalik/notify v0.9.1 // indirect
+	github.com/rs/cors v1.7.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/spf13/afero v1.6.0 // indirect
+	github.com/spf13/cast v1.4.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4 // indirect
+	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/stretchr/testify v1.7.2 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a // indirect
+	github.com/thoas/go-funk v0.9.2 // indirect
+	github.com/tklauser/go-sysconf v0.3.6 // indirect
+	github.com/tklauser/numcpus v0.2.2 // indirect
+	github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef // indirect
+	github.com/urfave/cli/v2 v2.10.2 // indirect
+	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.17.0 // indirect
+	golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e // indirect
+	golang.org/x/net v0.0.0-20220607020251-c690dde0001d // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a // indirect
+	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
+	google.golang.org/protobuf v1.27.1 // indirect
+	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	lukechampine.com/blake3 v1.1.6 // indirect
+)
+
+replace github.com/ethereum/go-ethereum v1.10.21 => github.com/vulcanize/go-ethereum v1.10.21-statediff-4.1.2-alpha

pkg/builder.go

@@ -20,93 +20,25 @@
 package statediff
 
 import (
-	"bytes"
 	"fmt"
 	"math/bits"
 	"sync"
 
-	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/rlp"
 	sd "github.com/ethereum/go-ethereum/statediff"
-	sdtrie "github.com/ethereum/go-ethereum/statediff/trie_helpers"
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
-	"github.com/ethereum/go-ethereum/trie"
 	"github.com/sirupsen/logrus"
 
 	iter "github.com/vulcanize/go-eth-state-node-iterator"
 )
 
-var (
-	nullHashBytes     = common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")
-	emptyNode, _      = rlp.EncodeToBytes(&[]byte{})
-	emptyContractRoot = crypto.Keccak256Hash(emptyNode)
-	nullCodeHash      = crypto.Keccak256Hash([]byte{}).Bytes()
-)
-
-// Builder interface exposes the method for building a state diff between two blocks
-type Builder interface {
-	BuildStateDiffObject(args sd.Args, params sd.Params) (sdtypes.StateObject, error)
-	BuildStateTrieObject(current *types.Block) (sdtypes.StateObject, error)
-	WriteStateDiffObject(args sdtypes.StateRoots, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error
-}
-
 type builder struct {
-	stateCache state.Database
+	sd.StateDiffBuilder
 	numWorkers uint
 }
 
-type iterPair struct {
-	older, newer trie.NodeIterator
-}
-
-func resolveNode(it trie.NodeIterator, trieDB *trie.Database) (sdtypes.StateNode, []interface{}, error) {
-	nodePath := make([]byte, len(it.Path()))
-	copy(nodePath, it.Path())
-	node, err := trieDB.Node(it.Hash())
-	if err != nil {
-		return sdtypes.StateNode{}, nil, err
-	}
-	var nodeElements []interface{}
-	if err := rlp.DecodeBytes(node, &nodeElements); err != nil {
-		return sdtypes.StateNode{}, nil, err
-	}
-	ty, err := sdtrie.CheckKeyType(nodeElements)
-	if err != nil {
-		return sdtypes.StateNode{}, nil, err
-	}
-	return sdtypes.StateNode{
-		NodeType:  ty,
-		Path:      nodePath,
-		NodeValue: node,
-	}, nodeElements, nil
-}
-
-// convenience
-func stateNodeAppender(nodes *[]sdtypes.StateNode) sdtypes.StateNodeSink {
-	return func(node sdtypes.StateNode) error {
-		*nodes = append(*nodes, node)
-		return nil
-	}
-}
-func storageNodeAppender(nodes *[]sdtypes.StorageNode) sdtypes.StorageNodeSink {
-	return func(node sdtypes.StorageNode) error {
-		*nodes = append(*nodes, node)
-		return nil
-	}
-}
-func codeMappingAppender(data *[]sdtypes.CodeAndCodeHash) sdtypes.CodeSink {
-	return func(c sdtypes.CodeAndCodeHash) error {
-		*data = append(*data, c)
-		return nil
-	}
-}
-
 // NewBuilder is used to create a statediff builder
-func NewBuilder(stateCache state.Database, workers uint) (Builder, error) {
+func NewBuilder(stateCache state.Database, workers uint) (sd.Builder, error) {
 	if workers == 0 {
 		workers = 1
 	}
@@ -114,88 +46,20 @@ func NewBuilder(stateCache state.Database, workers uint) (Builder, error) {
 		return nil, fmt.Errorf("workers must be a power of 2")
 	}
 	return &builder{
-		stateCache: stateCache, // state cache is safe for concurrent reads
+		StateDiffBuilder: sd.StateDiffBuilder{
+			StateCache: stateCache,
+		},
 		numWorkers: workers,
 	}, nil
 }
 
-// BuildStateTrieObject builds a state trie object from the provided block
-func (sdb *builder) BuildStateTrieObject(current *types.Block) (sdtypes.StateObject, error) {
-	currentTrie, err := sdb.stateCache.OpenTrie(current.Root())
-	if err != nil {
-		return sdtypes.StateObject{}, fmt.Errorf("error creating trie for block %d: %v", current.Number(), err)
-	}
-	it := currentTrie.NodeIterator([]byte{})
-	stateNodes, codeAndCodeHashes, err := sdb.buildStateTrie(it)
-	if err != nil {
-		return sdtypes.StateObject{}, fmt.Errorf("error collecting state nodes for block %d: %v", current.Number(), err)
-	}
-	return sdtypes.StateObject{
-		BlockNumber:       current.Number(),
-		BlockHash:         current.Hash(),
-		Nodes:             stateNodes,
-		CodeAndCodeHashes: codeAndCodeHashes,
-	}, nil
-}
-
-func (sdb *builder) buildStateTrie(it trie.NodeIterator) ([]sdtypes.StateNode, []sdtypes.CodeAndCodeHash, error) {
-	stateNodes := make([]sdtypes.StateNode, 0)
-	codeAndCodeHashes := make([]sdtypes.CodeAndCodeHash, 0)
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			node.LeafKey = leafKey
-			if !bytes.Equal(account.CodeHash, nullCodeHash) {
-				var storageNodes []sdtypes.StorageNode
-				err := sdb.buildStorageNodesEventual(account.Root, true, storageNodeAppender(&storageNodes))
-				if err != nil {
-					return nil, nil, fmt.Errorf("failed building eventual storage diffs for account %+v\r\nerror: %v", account, err)
-				}
-				node.StorageNodes = storageNodes
-				// emit codehash => code mappings for code
-				codeHash := common.BytesToHash(account.CodeHash)
-				code, err := sdb.stateCache.ContractCode(common.Hash{}, codeHash)
-				if err != nil {
-					return nil, nil, fmt.Errorf("failed to retrieve code for codehash %s\r\n error: %v", codeHash.String(), err)
-				}
-				codeAndCodeHashes = append(codeAndCodeHashes, sdtypes.CodeAndCodeHash{
-					Hash: codeHash,
-					Code: code,
-				})
-			}
-			stateNodes = append(stateNodes, node)
-		case sdtypes.Extension, sdtypes.Branch:
-			stateNodes = append(stateNodes, node)
-		default:
-			return nil, nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return stateNodes, codeAndCodeHashes, it.Error()
-}
-
 // BuildStateDiffObject builds a statediff object from two blocks and the provided parameters
 func (sdb *builder) BuildStateDiffObject(args sd.Args, params sd.Params) (sdtypes.StateObject, error) {
 	var stateNodes []sdtypes.StateNode
 	var codeAndCodeHashes []sdtypes.CodeAndCodeHash
 	err := sdb.WriteStateDiffObject(
 		sdtypes.StateRoots{OldStateRoot: args.OldStateRoot, NewStateRoot: args.NewStateRoot},
-		params, stateNodeAppender(&stateNodes), codeMappingAppender(&codeAndCodeHashes))
+		params, sd.StateNodeAppender(&stateNodes), sd.CodeMappingAppender(&codeAndCodeHashes))
 	if err != nil {
 		return sdtypes.StateObject{}, err
 	}
@@ -209,18 +73,12 @@ func (sdb *builder) BuildStateDiffObject(args sd.Args, params sd.Params) (sdtype
 
 // WriteStateDiffObject writes a statediff object to output callback
 func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
-	if len(params.WatchedAddresses) > 0 {
-		// if we are watching only specific accounts then we are only diffing leaf nodes
-		log.Info("Ignoring intermediate state nodes because WatchedAddresses was passed")
-		params.IntermediateStateNodes = false
-	}
-
 	// Load tries for old and new states
-	oldTrie, err := sdb.stateCache.OpenTrie(args.OldStateRoot)
+	oldTrie, err := sdb.StateCache.OpenTrie(args.OldStateRoot)
 	if err != nil {
 		return fmt.Errorf("error creating trie for oldStateRoot: %v", err)
 	}
-	newTrie, err := sdb.stateCache.OpenTrie(args.NewStateRoot)
+	newTrie, err := sdb.StateCache.OpenTrie(args.NewStateRoot)
 	if err != nil {
 		return fmt.Errorf("error creating trie for newStateRoot: %v", err)
 	}
@@ -234,11 +92,11 @@ func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Para
 	// Create iterators ahead of time to avoid race condition in state.Trie access
 	// We do two state iterations per subtrie: one for new/updated nodes,
 	// one for deleted/updated nodes; prepare 2 iterator instances for each task
-	var iterPairs [][]iterPair
+	var iterPairs [][]sd.IterPair
 	for i := uint(0); i < sdb.numWorkers; i++ {
-		iterPairs = append(iterPairs, []iterPair{
-			{older: oldIters1[i], newer: newIters1[i]},
-			{older: oldIters2[i], newer: newIters2[i]},
+		iterPairs = append(iterPairs, []sd.IterPair{
+			{Older: oldIters1[i], Newer: newIters1[i]},
+			{Older: oldIters2[i], Newer: newIters2[i]},
 		})
 	}
 
@@ -255,8 +113,15 @@ func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Para
 			wg.Add(1)
 			go func(worker uint) {
 				defer wg.Done()
-				if err := sdb.buildStateDiff(iterPairs[worker], params, nodeSender, codeSender); err != nil {
-					logrus.Errorf("buildStateDiff error for worker %d, pparams %+v", worker, params)
+				var err error
+				if !params.IntermediateStateNodes {
+					err = sdb.BuildStateDiffWithoutIntermediateStateNodes(iterPairs[worker], params, nodeSender, codeSender)
+				} else {
+					err = sdb.BuildStateDiffWithIntermediateStateNodes(iterPairs[worker], params, nodeSender, codeSender)
+				}
+
+				if err != nil {
+					logrus.Errorf("buildStateDiff error for worker %d, params %+v", worker, params)
 				}
 			}(w)
 		}
@@ -288,599 +153,3 @@ func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Para
 
 	return nil
 }
-
-func (sdb *builder) buildStateDiff(args []iterPair, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
-	// collect a slice of all the intermediate nodes that were touched and exist at B
-	// a map of their leafkey to all the accounts that were touched and exist at B
-	// and a slice of all the paths for the nodes in both of the above sets
-	var diffAccountsAtB AccountMap
-	var diffPathsAtB map[string]bool
-	var err error
-	if params.IntermediateStateNodes {
-		diffAccountsAtB, diffPathsAtB, err = sdb.createdAndUpdatedStateWithIntermediateNodes(args[0], output)
-	} else {
-		diffAccountsAtB, diffPathsAtB, err = sdb.createdAndUpdatedState(args[0], params.WatchedAddressesLeafKeys())
-	}
-
-	if err != nil {
-		return fmt.Errorf("error collecting createdAndUpdatedNodes: %v", err)
-	}
-
-	// collect a slice of all the nodes that existed at a path in A that doesn't exist in B
-	// a map of their leafkey to all the accounts that were touched and exist at A
-	diffAccountsAtA, err := sdb.deletedOrUpdatedState(args[1], diffAccountsAtB, diffPathsAtB, params.WatchedAddressesLeafKeys(), params.IntermediateStorageNodes, output)
-	if err != nil {
-		return fmt.Errorf("error collecting deletedOrUpdatedNodes: %v", err)
-	}
-
-	// collect and sort the leafkeys for both account mappings into a slice
-	createKeys := sortKeys(diffAccountsAtB)
-	deleteKeys := sortKeys(diffAccountsAtA)
-
-	// and then find the intersection of these keys
-	// these are the leafkeys for the accounts which exist at both A and B but are different
-	// this also mutates the passed in createKeys and deleteKeys, removing the intersection keys
-	// and leaving the truly created or deleted keys in place
-	updatedKeys := findIntersection(createKeys, deleteKeys)
-
-	// build the diff nodes for the updated accounts using the mappings at both A and B as directed by the keys found as the intersection of the two
-	err = sdb.buildAccountUpdates(
-		diffAccountsAtB, diffAccountsAtA, updatedKeys, params.IntermediateStorageNodes, output)
-	if err != nil {
-		return fmt.Errorf("error building diff for updated accounts: %v", err)
-	}
-	// build the diff nodes for created accounts
-	err = sdb.buildAccountCreations(diffAccountsAtB, params.IntermediateStorageNodes, output, codeOutput)
-	if err != nil {
-		return fmt.Errorf("error building diff for created accounts: %v", err)
-	}
-	return nil
-}
-
-// createdAndUpdatedState returns
-// a mapping of their leafkeys to all the accounts that exist in a different state at B than A
-// and a slice of the paths for all of the nodes included in both
-func (sdb *builder) createdAndUpdatedState(iters iterPair, watchedAddressesLeafKeys map[common.Hash]struct{}) (AccountMap, map[string]bool, error) {
-	diffPathsAtB := make(map[string]bool)
-	diffAcountsAtB := make(AccountMap)
-	it, _ := trie.NewDifferenceIterator(iters.older, iters.newer)
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := sdtrie.ResolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			// created vs updated is important for leaf nodes since we need to diff their storage
-			// so we need to map all changed accounts at B to their leafkey, since account can change pathes but not leafkey
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if isWatchedAddress(watchedAddressesLeafKeys, leafKey) {
-				diffAcountsAtB[common.Bytes2Hex(leafKey)] = accountWrapper{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-					LeafKey:   leafKey,
-					Account:   &account,
-				}
-			}
-		}
-		// add both intermediate and leaf node paths to the list of diffPathsAtB
-		diffPathsAtB[common.Bytes2Hex(node.Path)] = true
-	}
-	return diffAcountsAtB, diffPathsAtB, it.Error()
-}
-
-// createdAndUpdatedStateWithIntermediateNodes returns
-// a slice of all the intermediate nodes that exist in a different state at B than A
-// a mapping of their leafkeys to all the accounts that exist in a different state at B than A
-// and a slice of the paths for all of the nodes included in both
-func (sdb *builder) createdAndUpdatedStateWithIntermediateNodes(iters iterPair, output sdtypes.StateNodeSink) (AccountMap, map[string]bool, error) {
-	diffPathsAtB := make(map[string]bool)
-	diffAcountsAtB := make(AccountMap)
-	it, _ := trie.NewDifferenceIterator(iters.older, iters.newer)
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			// created vs updated is important for leaf nodes since we need to diff their storage
-			// so we need to map all changed accounts at B to their leafkey, since account can change paths but not leafkey
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			diffAcountsAtB[common.Bytes2Hex(leafKey)] = accountWrapper{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-				LeafKey:   leafKey,
-				Account:   &account,
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			// create a diff for any intermediate node that has changed at b
-			// created vs updated makes no difference for intermediate nodes since we do not need to diff storage
-			if err := output(sdtypes.StateNode{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-			}); err != nil {
-				return nil, nil, err
-			}
-		default:
-			return nil, nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-		// add both intermediate and leaf node paths to the list of diffPathsAtB
-		diffPathsAtB[common.Bytes2Hex(node.Path)] = true
-	}
-	return diffAcountsAtB, diffPathsAtB, it.Error()
-}
-
-// deletedOrUpdatedState returns a slice of all the paths that are emptied at B
-// and a mapping of their leafkeys to all the accounts that exist in a different state at A than B
-func (sdb *builder) deletedOrUpdatedState(iters iterPair, diffAccountsAtB AccountMap, diffPathsAtB map[string]bool, watchedAddressesLeafKeys map[common.Hash]struct{}, intermediateStorageNodes bool, output sdtypes.StateNodeSink) (AccountMap, error) {
-	diffAccountAtA := make(AccountMap)
-	it, _ := trie.NewDifferenceIterator(iters.newer, iters.older)
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := sdtrie.ResolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			// map all different accounts at A to their leafkey
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if isWatchedAddress(watchedAddressesLeafKeys, leafKey) {
-				diffAccountAtA[common.Bytes2Hex(leafKey)] = accountWrapper{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-					LeafKey:   leafKey,
-					Account:   &account,
-				}
-				// if this node's path did not show up in diffPathsAtB
-				// that means the node at this path was deleted (or moved) in B
-				if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-					var diff sdtypes.StateNode
-					// if this node's leaf key also did not show up in diffAccountsAtB
-					// that means the node was deleted
-					// in that case, emit an empty "removed" diff state node
-					// include empty "removed" diff storage nodes for all the storage slots
-					if _, ok := diffAccountsAtB[common.Bytes2Hex(leafKey)]; !ok {
-						diff = sdtypes.StateNode{
-							NodeType:  sdtypes.Removed,
-							Path:      node.Path,
-							LeafKey:   leafKey,
-							NodeValue: []byte{},
-						}
-
-						var storageDiffs []sdtypes.StorageNode
-						err := sdb.buildRemovedAccountStorageNodes(account.Root, intermediateStorageNodes, storageNodeAppender(&storageDiffs))
-						if err != nil {
-							return nil, fmt.Errorf("failed building storage diffs for removed node %x\r\nerror: %v", node.Path, err)
-						}
-						diff.StorageNodes = storageDiffs
-					} else {
-						// emit an empty "removed" diff with empty leaf key if the account was moved
-						diff = sdtypes.StateNode{
-							NodeType:  sdtypes.Removed,
-							Path:      node.Path,
-							NodeValue: []byte{},
-						}
-					}
-
-					if err := output(diff); err != nil {
-						return nil, err
-					}
-				}
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			// if this node's path did not show up in diffPathsAtB
-			// that means the node at this path was deleted (or moved) in B
-			// emit an empty "removed" diff to signify as such
-			if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-				if err := output(sdtypes.StateNode{
-					Path:      node.Path,
-					NodeValue: []byte{},
-					NodeType:  sdtypes.Removed,
-				}); err != nil {
-					return nil, err
-				}
-			}
-			// fall through, we did everything we need to do with these node types
-		default:
-			return nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return diffAccountAtA, it.Error()
-}
-
-// buildAccountUpdates uses the account diffs maps for A => B and B => A and the known intersection of their leafkeys
-// to generate the statediff node objects for all of the accounts that existed at both A and B but in different states
-// needs to be called before building account creations and deletions as this mutates
-// those account maps to remove the accounts which were updated
-func (sdb *builder) buildAccountUpdates(creations, deletions AccountMap, updatedKeys []string, intermediateStorageNodes bool, output sdtypes.StateNodeSink) error {
-	var err error
-	for _, key := range updatedKeys {
-		createdAcc := creations[key]
-		deletedAcc := deletions[key]
-		var storageDiffs []sdtypes.StorageNode
-		if deletedAcc.Account != nil && createdAcc.Account != nil {
-			oldSR := deletedAcc.Account.Root
-			newSR := createdAcc.Account.Root
-			err = sdb.buildStorageNodesIncremental(oldSR, newSR, intermediateStorageNodes, storageNodeAppender(&storageDiffs))
-			if err != nil {
-				return fmt.Errorf("failed building incremental storage diffs for account with leafkey %s\r\nerror: %v", key, err)
-			}
-		}
-		if err = output(sdtypes.StateNode{
-			NodeType:     createdAcc.NodeType,
-			Path:         createdAcc.Path,
-			NodeValue:    createdAcc.NodeValue,
-			LeafKey:      createdAcc.LeafKey,
-			StorageNodes: storageDiffs,
-		}); err != nil {
-			return err
-		}
-		delete(creations, key)
-		delete(deletions, key)
-	}
-
-	return nil
-}
-
-// buildAccountCreations returns the statediff node objects for all the accounts that exist at B but not at A
-// it also returns the code and codehash for created contract accounts
-func (sdb *builder) buildAccountCreations(accounts AccountMap, intermediateStorageNodes bool, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
-	for _, val := range accounts {
-		diff := sdtypes.StateNode{
-			NodeType:  val.NodeType,
-			Path:      val.Path,
-			LeafKey:   val.LeafKey,
-			NodeValue: val.NodeValue,
-		}
-		if !bytes.Equal(val.Account.CodeHash, nullCodeHash) {
-			// For contract creations, any storage node contained is a diff
-			var storageDiffs []sdtypes.StorageNode
-			err := sdb.buildStorageNodesEventual(val.Account.Root, intermediateStorageNodes, storageNodeAppender(&storageDiffs))
-			if err != nil {
-				return fmt.Errorf("failed building eventual storage diffs for node %x\r\nerror: %v", val.Path, err)
-			}
-			diff.StorageNodes = storageDiffs
-			// emit codehash => code mappings for code
-			codeHash := common.BytesToHash(val.Account.CodeHash)
-			code, err := sdb.stateCache.ContractCode(common.Hash{}, codeHash)
-			if err != nil {
-				return fmt.Errorf("failed to retrieve code for codehash %s\r\n error: %v", codeHash.String(), err)
-			}
-			if err := codeOutput(sdtypes.CodeAndCodeHash{
-				Hash: codeHash,
-				Code: code,
-			}); err != nil {
-				return err
-			}
-		}
-		if err := output(diff); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// buildStorageNodesEventual builds the storage diff node objects for a created account
-// i.e. it returns all the storage nodes at this state, since there is no previous state
-func (sdb *builder) buildStorageNodesEventual(sr common.Hash, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	if bytes.Equal(sr.Bytes(), emptyContractRoot.Bytes()) {
-		return nil
-	}
-	log.Debug("Storage Root For Eventual Diff", "root", sr.Hex())
-	sTrie, err := sdb.stateCache.OpenTrie(sr)
-	if err != nil {
-		log.Info("error in build storage diff eventual", "error", err)
-		return err
-	}
-	it := sTrie.NodeIterator(make([]byte, 0))
-	err = sdb.buildStorageNodesFromTrie(it, intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// buildStorageNodesFromTrie returns all the storage diff node objects in the provided node iterator
-// if any storage keys are provided it will only return those leaf nodes
-// including intermediate nodes can be turned on or off
-func (sdb *builder) buildStorageNodesFromTrie(it trie.NodeIterator, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if err := output(sdtypes.StorageNode{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-				LeafKey:   leafKey,
-			}); err != nil {
-				return err
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			if intermediateNodes {
-				if err := output(sdtypes.StorageNode{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-				}); err != nil {
-					return err
-				}
-			}
-		default:
-			return fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return it.Error()
-}
-
-// buildRemovedAccountStorageNodes builds the "removed" diffs for all the storage nodes for a destroyed account
-func (sdb *builder) buildRemovedAccountStorageNodes(sr common.Hash, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	if bytes.Equal(sr.Bytes(), emptyContractRoot.Bytes()) {
-		return nil
-	}
-	log.Debug("Storage Root For Removed Diffs", "root", sr.Hex())
-	sTrie, err := sdb.stateCache.OpenTrie(sr)
-	if err != nil {
-		log.Info("error in build removed account storage diffs", "error", err)
-		return err
-	}
-	it := sTrie.NodeIterator(make([]byte, 0))
-	err = sdb.buildRemovedStorageNodesFromTrie(it, intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// buildRemovedStorageNodesFromTrie returns diffs for all the storage nodes in the provided node interator
-// including intermediate nodes can be turned on or off
-func (sdb *builder) buildRemovedStorageNodesFromTrie(it trie.NodeIterator, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if err := output(sdtypes.StorageNode{
-				NodeType:  sdtypes.Removed,
-				Path:      node.Path,
-				NodeValue: []byte{},
-				LeafKey:   leafKey,
-			}); err != nil {
-				return err
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			if intermediateNodes {
-				if err := output(sdtypes.StorageNode{
-					NodeType:  sdtypes.Removed,
-					Path:      node.Path,
-					NodeValue: []byte{},
-				}); err != nil {
-					return err
-				}
-			}
-		default:
-			return fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return it.Error()
-}
-
-// buildStorageNodesIncremental builds the storage diff node objects for all nodes that exist in a different state at B than A
-func (sdb *builder) buildStorageNodesIncremental(oldSR common.Hash, newSR common.Hash, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	if bytes.Equal(newSR.Bytes(), oldSR.Bytes()) {
-		return nil
-	}
-	log.Debug("Storage Roots for Incremental Diff", "old", oldSR.Hex(), "new", newSR.Hex())
-	oldTrie, err := sdb.stateCache.OpenTrie(oldSR)
-	if err != nil {
-		return err
-	}
-	newTrie, err := sdb.stateCache.OpenTrie(newSR)
-	if err != nil {
-		return err
-	}
-
-	diffSlotsAtB, diffPathsAtB, err := sdb.createdAndUpdatedStorage(oldTrie.NodeIterator([]byte{}), newTrie.NodeIterator([]byte{}), intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	err = sdb.deletedOrUpdatedStorage(oldTrie.NodeIterator([]byte{}), newTrie.NodeIterator([]byte{}), diffSlotsAtB, diffPathsAtB, intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-func (sdb *builder) createdAndUpdatedStorage(a, b trie.NodeIterator, intermediateNodes bool, output sdtypes.StorageNodeSink) (map[string]bool, map[string]bool, error) {
-	diffPathsAtB := make(map[string]bool)
-	diffSlotsAtB := make(map[string]bool)
-	it, _ := trie.NewDifferenceIterator(a, b)
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			diffSlotsAtB[common.Bytes2Hex(leafKey)] = true
-			if err := output(sdtypes.StorageNode{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-				LeafKey:   leafKey,
-			}); err != nil {
-				return nil, nil, err
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			if intermediateNodes {
-				if err := output(sdtypes.StorageNode{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-				}); err != nil {
-					return nil, nil, err
-				}
-			}
-		default:
-			return nil, nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-		diffPathsAtB[common.Bytes2Hex(node.Path)] = true
-	}
-	return diffSlotsAtB, diffPathsAtB, it.Error()
-}
-
-func (sdb *builder) deletedOrUpdatedStorage(a, b trie.NodeIterator, diffSlotsAtB, diffPathsAtB map[string]bool, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	it, _ := trie.NewDifferenceIterator(b, a)
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := sdtrie.ResolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return err
-		}
-
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-
-			// if this node's path did not show up in diffPathsAtB
-			// that means the node at this path was deleted (or moved) in B
-			if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-				// if this node's leaf key also did not show up in diffSlotsAtB
-				// that means the node was deleted
-				// in that case, emit an empty "removed" diff storage node
-				if _, ok := diffSlotsAtB[common.Bytes2Hex(leafKey)]; !ok {
-					if err := output(sdtypes.StorageNode{
-						NodeType:  sdtypes.Removed,
-						Path:      node.Path,
-						NodeValue: []byte{},
-						LeafKey:   leafKey,
-					}); err != nil {
-						return err
-					}
-				} else {
-					// emit an empty "removed" diff with empty leaf key if the account was moved
-					if err := output(sdtypes.StorageNode{
-						NodeType:  sdtypes.Removed,
-						Path:      node.Path,
-						NodeValue: []byte{},
-					}); err != nil {
-						return err
-					}
-				}
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			// if this node's path did not show up in diffPathsAtB
-			// that means the node at this path was deleted in B
-			// in that case, emit an empty "removed" diff storage node
-			if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-				if intermediateNodes {
-					if err := output(sdtypes.StorageNode{
-						NodeType:  sdtypes.Removed,
-						Path:      node.Path,
-						NodeValue: []byte{},
-					}); err != nil {
-						return err
-					}
-				}
-			}
-		default:
-			return fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return it.Error()
-}
-
-// isWatchedAddress is used to check if a state account corresponds to one of the addresses the builder is configured to watch
-func isWatchedAddress(watchedAddressesLeafKeys map[common.Hash]struct{}, stateLeafKey []byte) bool {
-	// If we aren't watching any specific addresses, we are watching everything
-	if len(watchedAddressesLeafKeys) == 0 {
-		return true
-	}
-
-	_, ok := watchedAddressesLeafKeys[common.BytesToHash(stateLeafKey)]
-	return ok
-}
-
-// isWatchedStorageKey is used to check if a storage leaf corresponds to one of the storage slots the builder is configured to watch
-func isWatchedStorageKey(watchedKeys []common.Hash, storageLeafKey []byte) bool {
-	// If we aren't watching any specific addresses, we are watching everything
-	if len(watchedKeys) == 0 {
-		return true
-	}
-	for _, hashKey := range watchedKeys {
-		if bytes.Equal(hashKey.Bytes(), storageLeafKey) {
-			return true
-		}
-	}
-	return false
-}

pkg/builder_test.go

@@ -26,20 +26,19 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/rlp"
-	"github.com/ethereum/go-ethereum/statediff"
+	sd "github.com/ethereum/go-ethereum/statediff"
 	"github.com/ethereum/go-ethereum/statediff/test_helpers"
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
 
 	pkg "github.com/vulcanize/eth-statediff-service/pkg"
 )
 
-// TODO: add test that filters on address
 var (
 	contractLeafKey                                        []byte
 	emptyDiffs                                             = make([]sdtypes.StateNode, 0)
 	emptyStorage                                           = make([]sdtypes.StorageNode, 0)
 	block0, block1, block2, block3, block4, block5, block6 *types.Block
-	builder                                                pkg.Builder
+	builder                                                sd.Builder
 	miningReward                                           = int64(2000000000000000000)
 	minerAddress                                           = common.HexToAddress("0x0")
 	minerLeafKey                                           = test_helpers.AddressToLeafKey(minerAddress)
@@ -487,16 +486,16 @@ func TestBuilder(t *testing.T) {
 	block1 = blocks[0]
 	block2 = blocks[1]
 	block3 = blocks[2]
-	params := statediff.Params{}
+	params := sd.Params{}
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testEmptyDiff",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@@ -511,7 +510,7 @@ func TestBuilder(t *testing.T) {
 		{
 			"testBlock0",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: test_helpers.NullHash,
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@@ -534,7 +533,7 @@ func TestBuilder(t *testing.T) {
 		{
 			"testBlock1",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@@ -573,7 +572,7 @@ func TestBuilder(t *testing.T) {
 			// 1000 transferred from testBankAddress to account1Addr
 			// 1000 transferred from account1Addr to account2Addr
 			// account1addr creates a new contract
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@@ -644,7 +643,7 @@ func TestBuilder(t *testing.T) {
 			"testBlock3",
 			//the contract's storage is changed
 			//and the block is mined by account 2
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block2.Root(),
 				NewStateRoot: block3.Root(),
 				BlockNumber:  block3.Number(),
@@ -721,19 +720,19 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 	block2 = blocks[1]
 	block3 = blocks[2]
 	blocks = append([]*types.Block{block0}, blocks...)
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   true,
 		IntermediateStorageNodes: true,
 	}
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testEmptyDiff",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@@ -748,7 +747,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 		{
 			"testBlock0",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: test_helpers.NullHash,
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@@ -771,7 +770,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 		{
 			"testBlock1",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@@ -816,7 +815,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 			// 1000 transferred from testBankAddress to account1Addr
 			// 1000 transferred from account1Addr to account2Addr
 			// account1addr creates a new contract
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@@ -898,7 +897,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 			"testBlock3",
 			//the contract's storage is changed
 			//and the block is mined by account 2
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block2.Root(),
 				NewStateRoot: block3.Root(),
 				BlockNumber:  block3.Number(),
@@ -999,19 +998,21 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 	block1 = blocks[0]
 	block2 = blocks[1]
 	block3 = blocks[2]
-	params := statediff.Params{
-		WatchedAddresses: []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
+	params := sd.Params{
+		IntermediateStateNodes:   true,
+		IntermediateStorageNodes: true,
+		WatchedAddresses:         []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
 	}
-	params.ComputeWatchedAddressesLeafKeys()
+	params.ComputeWatchedAddressesLeafPaths()
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testEmptyDiff",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@@ -1026,7 +1027,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 		{
 			"testBlock0",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: test_helpers.NullHash,
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@@ -1041,7 +1042,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 		{
 			"testBlock1",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@@ -1051,6 +1052,12 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 				BlockNumber: block1.Number(),
 				BlockHash:   block1.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block1BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0e'},
 						NodeType:     sdtypes.Leaf,
@@ -1065,7 +1072,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 			"testBlock2",
 			//1000 transferred from testBankAddress to account1Addr
 			//1000 transferred from account1Addr to account2Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@@ -1075,12 +1082,23 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 				BlockNumber: block2.Number(),
 				BlockHash:   block2.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block2BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock2LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block2StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x02'},
 								NodeType:  sdtypes.Leaf,
@@ -1115,7 +1133,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 			"testBlock3",
 			//the contract's storage is changed
 			//and the block is mined by account 2
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block2.Root(),
 				NewStateRoot: block3.Root(),
 				BlockNumber:  block3.Number(),
@@ -1125,12 +1143,23 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 				BlockNumber: block3.Number(),
 				BlockHash:   block3.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block3BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock3LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block3StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x0c'},
 								NodeType:  sdtypes.Leaf,
@@ -1177,20 +1206,20 @@ func TestBuilderWithRemovedAccountAndStorage(t *testing.T) {
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   true,
 		IntermediateStorageNodes: true,
 	}
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		// blocks 0-3 are the same as in TestBuilderWithIntermediateNodes
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@@ -1256,7 +1285,7 @@ func TestBuilderWithRemovedAccountAndStorage(t *testing.T) {
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@@ -1316,7 +1345,7 @@ func TestBuilderWithRemovedAccountAndStorage(t *testing.T) {
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@@ -1412,20 +1441,20 @@ func TestBuilderWithRemovedAccountAndStorageWithoutIntermediateNodes(t *testing.
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   false,
 		IntermediateStorageNodes: false,
 	}
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		// blocks 0-3 are the same as in TestBuilderWithIntermediateNodes
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@@ -1480,7 +1509,7 @@ func TestBuilderWithRemovedAccountAndStorageWithoutIntermediateNodes(t *testing.
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@@ -1529,7 +1558,7 @@ func TestBuilderWithRemovedAccountAndStorageWithoutIntermediateNodes(t *testing.
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@@ -1611,19 +1640,21 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
-		WatchedAddresses: []common.Address{test_helpers.Account1Addr, test_helpers.Account2Addr},
+	params := sd.Params{
+		IntermediateStateNodes:   true,
+		IntermediateStorageNodes: true,
+		WatchedAddresses:         []common.Address{test_helpers.Account1Addr, test_helpers.Account2Addr},
 	}
-	params.ComputeWatchedAddressesLeafKeys()
+	params.ComputeWatchedAddressesLeafPaths()
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@@ -1633,6 +1664,12 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 				BlockNumber: block4.Number(),
 				BlockHash:   block4.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block4BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0c'},
 						NodeType:     sdtypes.Leaf,
@@ -1645,7 +1682,7 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@@ -1655,6 +1692,12 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 				BlockNumber: block5.Number(),
 				BlockHash:   block5.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block5BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0e'},
 						NodeType:     sdtypes.Leaf,
@@ -1667,7 +1710,7 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@@ -1677,6 +1720,12 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 				BlockNumber: block6.Number(),
 				BlockHash:   block6.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block6BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0c'},
 						NodeType:     sdtypes.Leaf,
@@ -1729,19 +1778,21 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
-		WatchedAddresses: []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
+	params := sd.Params{
+		IntermediateStateNodes:   true,
+		IntermediateStorageNodes: true,
+		WatchedAddresses:         []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
 	}
-	params.ComputeWatchedAddressesLeafKeys()
+	params.ComputeWatchedAddressesLeafPaths()
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@@ -1751,12 +1802,23 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 				BlockNumber: block4.Number(),
 				BlockHash:   block4.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block4BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock4LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block4StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x04'},
 								NodeType:  sdtypes.Leaf,
@@ -1782,7 +1844,7 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@@ -1792,12 +1854,23 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 				BlockNumber: block5.Number(),
 				BlockHash:   block5.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block5BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock5LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block5StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x0c'},
 								NodeType:  sdtypes.Leaf,
@@ -1824,7 +1897,7 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@@ -1834,12 +1907,23 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 				BlockNumber: block6.Number(),
 				BlockHash:   block6.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block6BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Removed,
 						LeafKey:   contractLeafKey,
 						NodeValue: []byte{},
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Removed,
+								NodeValue: []byte{},
+							},
 							{
 								Path:      []byte{'\x02'},
 								NodeType:  sdtypes.Removed,
@@ -1979,19 +2063,19 @@ func TestBuilderWithMovedAccount(t *testing.T) {
 	block0 = test_helpers.Genesis
 	block1 = blocks[0]
 	block2 = blocks[1]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   true,
 		IntermediateStorageNodes: true,
 	}
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock1",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@@ -2050,7 +2134,7 @@ func TestBuilderWithMovedAccount(t *testing.T) {
 		},
 		{
 			"testBlock2",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@@ -2131,19 +2215,19 @@ func TestBuilderWithMovedAccountOnlyLeafs(t *testing.T) {
 	block0 = test_helpers.Genesis
 	block1 = blocks[0]
 	block2 = blocks[1]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   false,
 		IntermediateStorageNodes: false,
 	}
 
 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock1",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@@ -2191,7 +2275,7 @@ func TestBuilderWithMovedAccountOnlyLeafs(t *testing.T) {
 		},
 		{
 			"testBlock2",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),

pkg/prom/db_stats_collector.go

@@ -17,9 +17,9 @@
 package prom
 
 import (
-	"database/sql"
-
 	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql"
 )
 
 const (
@@ -29,7 +29,7 @@ const (
 
 // DBStatsGetter is an interface that gets sql.DBStats.
 type DBStatsGetter interface {
-	Stats() sql.DBStats
+	Stats() sql.Stats
 }
 
 // DBStatsCollector implements the prometheus.Collector interface.
@@ -122,41 +122,41 @@ func (c DBStatsCollector) Collect(ch chan<- prometheus.Metric) {
 	ch <- prometheus.MustNewConstMetric(
 		c.maxOpenDesc,
 		prometheus.GaugeValue,
-		float64(stats.MaxOpenConnections),
+		float64(stats.MaxOpen()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.openDesc,
 		prometheus.GaugeValue,
-		float64(stats.OpenConnections),
+		float64(stats.Open()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.inUseDesc,
 		prometheus.GaugeValue,
-		float64(stats.InUse),
+		float64(stats.InUse()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.idleDesc,
 		prometheus.GaugeValue,
-		float64(stats.Idle),
+		float64(stats.Idle()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.waitedForDesc,
 		prometheus.CounterValue,
-		float64(stats.WaitCount),
+		float64(stats.WaitCount()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.blockedSecondsDesc,
 		prometheus.CounterValue,
-		stats.WaitDuration.Seconds(),
+		stats.WaitDuration().Seconds(),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.closedMaxIdleDesc,
 		prometheus.CounterValue,
-		float64(stats.MaxIdleClosed),
+		float64(stats.MaxIdleClosed()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.closedMaxLifetimeDesc,
 		prometheus.CounterValue,
-		float64(stats.MaxLifetimeClosed),
+		float64(stats.MaxLifetimeClosed()),
 	)
 }

pkg/prom/prom.go

@@ -19,7 +19,6 @@ package prom
 import (
 	"time"
 
-	"github.com/jmoiron/sqlx"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 )
@@ -123,7 +122,7 @@ func Init() {
 }
 
 // RegisterDBCollector create metric collector for given connection
-func RegisterDBCollector(name string, db *sqlx.DB) {
+func RegisterDBCollector(name string, db DBStatsGetter) {
 	if metrics {
 		prometheus.Register(NewDBStatsCollector(name, db))
 	}

pkg/rpc/http.go

@@ -31,7 +31,7 @@ import (
 func StartHTTPEndpoint(endpoint string, apis []rpc.API, modules []string, cors []string, vhosts []string, timeouts rpc.HTTPTimeouts) (*rpc.Server, error) {
 
 	srv := rpc.NewServer()
-	err := node.RegisterApis(apis, modules, srv, false)
+	err := node.RegisterApis(apis, modules, srv)
 	if err != nil {
 		utils.Fatalf("Could not register HTTP API: %w", err)
 	}

pkg/service.go

@@ -66,7 +66,7 @@ type StateDiffService interface {
 // Service is the underlying struct for the state diffing service
 type Service struct {
 	// Used to build the state diff objects
-	Builder Builder
+	Builder sd.Builder
 	// Used to read data from LevelDB
 	lvlDBReader Reader
 	// Used to signal shutdown of the service
@@ -195,8 +195,8 @@ func (sds *Service) StateDiffAt(blockNumber uint64, params sd.Params) (*sd.Paylo
 	}
 	logrus.Infof("sending state diff at block %d", blockNumber)
 
-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()
 
 	if blockNumber == 0 {
 		return sds.processStateDiff(currentBlock, common.Hash{}, params)
@@ -217,8 +217,8 @@ func (sds *Service) StateDiffFor(blockHash common.Hash, params sd.Params) (*sd.P
 	}
 	logrus.Infof("sending state diff at block %s", blockHash.Hex())
 
-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()
 
 	if currentBlock.NumberU64() == 0 {
 		return sds.processStateDiff(currentBlock, common.Hash{}, params)
@@ -290,8 +290,8 @@ func (sds *Service) StateTrieAt(blockNumber uint64, params sd.Params) (*sd.Paylo
 	}
 	logrus.Infof("sending state trie at block %d", blockNumber)
 
-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()
 
 	return sds.processStateTrie(currentBlock, params)
 }
@@ -333,8 +333,8 @@ func (sds *Service) WriteStateDiffAt(blockNumber uint64, params sd.Params) error
 		return err
 	}
 
-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()
 
 	parentRoot := common.Hash{}
 	if blockNumber != 0 {
@@ -358,8 +358,8 @@ func (sds *Service) WriteStateDiffFor(blockHash common.Hash, params sd.Params) e
 		return err
 	}
 
-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()
 
 	parentRoot := common.Hash{}
 	if currentBlock.NumberU64() != 0 {