145 lines
4.8 KiB
Markdown
145 lines
4.8 KiB
Markdown
# ipld-eth-server
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[](https://goreportcard.com/report/github.com/vulcanize/ipld-eth-server)
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> ipld-eth-server is the server backend for indexed ETH IPLD objects
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## Table of Contents
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1. [Background](#background)
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1. [Install](#install)
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1. [Usage](#usage)
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1. [Contributing](#contributing)
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1. [License](#license)
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## Background
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NOTE: WIP
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ipld-eth-server is used to service queries against the Ethereum IPLD objects indexed by [ipld-eth-indexer](https://github.com/vulcanize/ipld-eth-indexer).
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It exposes standard Ethereum JSON RPC endpoints on top of the database, in some cases these endpoints can leverage the unique indexes to improve query performance.
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Additional, unique endpoints are exposed which utilize the new indexes and state diff data objects.
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## Dependencies
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Minimal build dependencies
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* Go (1.13)
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* Git
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* GCC compiler
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* This repository
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External dependency
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* Postgres database populated by [ipld-eth-indexer](https://github.com/vulcanize/ipld-eth-indexer)
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## Install
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Start by downloading ipld-eth-server and moving into the repo:
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`GO111MODULE=off go get -d github.com/vulcanize/ipld-eth-server`
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`cd $GOPATH/src/github.com/vulcanize/ipld-eth-server`
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Then, build the binary:
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`make build`
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## Usage
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After building the binary, run as
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`./ipld-eth-server serve --config=<the name of your config file.toml>`
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### Configuration
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Below is the set of parameters for the ipld-eth-server command, in .toml form, with the respective environmental variables commented to the side.
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The corresponding CLI flags can be found with the `./ipld-eth-server serve --help` command.
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```toml
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[database]
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name = "vulcanize_public" # $DATABASE_NAME
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hostname = "localhost" # $DATABASE_HOSTNAME
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port = 5432 # $DATABASE_PORT
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user = "postgres" # $DATABASE_USER
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password = "" # $DATABASE_PASSWORD
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[log]
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level = "info" # $LOGRUS_LEVEL
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[server]
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ipcPath = "~/.vulcanize/vulcanize.ipc" # $SERVER_IPC_PATH
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wsPath = "127.0.0.1:8081" # $SERVER_WS_PATH
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httpPath = "127.0.0.1:8082" # $SERVER_HTTP_PATH
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graphql = true # $SERVER_GRAPHQL
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graphqlEndpoint = "" # $SERVER_GRAPHQL_ENDPOINT
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[ethereum]
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chainID = "1" # $ETH_CHAIN_ID
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defaultSender = "" # $ETH_DEFAULT_SENDER_ADDR
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rpcGasCap = "1000000000000" # $ETH_RPC_GAS_CAP
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httpPath = "127.0.0.1:8545" # $ETH_HTTP_PATH
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nodeID = "arch1" # $ETH_NODE_ID
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clientName = "Geth" # $ETH_CLIENT_NAME
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genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3" # $ETH_GENESIS_BLOCK
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networkID = "1" # $ETH_NETWORK_ID
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```
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The `database` fields are for connecting to a Postgres database that has been/is being populated by [ipld-eth-indexer](https://github.com/vulcanize/ipld-eth-indexer)
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The `server` fields set the paths for exposing the ipld-eth-server endpoints
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The `ethereum` fields set the chainID and default sender address to use for EVM simulation, and can optionally be used to configure a remote eth node to forward cache misses to
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### Endpoints
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#### IPLD subscription
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TODO: Port the IPLD RPC subscription endpoints after the decoupling
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#### Ethereum JSON-RPC
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ipld-eth-server currently recapitulates portions of the Ethereum JSON-RPC api standard.
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The currently supported standard endpoints are:
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`eth_call`
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`eth_getBalance`
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`eth_getStorageAt`
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`eth_getCode`
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`eth_getProof`
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`eth_blockNumber`
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`eth_getHeaderByNumber`
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`eth_getHeaderByHash`
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`eth_getBlockByNumber`
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`eth_getBlockByHash`
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`eth_getTransactionCount`
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`eth_getBlockTransactionCountByHash`
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`eth_getBlockTransactionCountByNumber`
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`eth_getTransactionByHash`
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`eth_getRawTransactionByHash`
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`eth_getTransactionByBlockHashAndIndex`
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`eth_getTransactionByBlockNumberAndIndex`
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`eth_getRawTransactionByBlockHashAndIndex`
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`eth_getRawTransactionByBlockNumberAndIndex`
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`eth_getTransactionReceipt`
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`eth_getLogs`
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`eth_getUncleCountByBlockHash`
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`eth_getUncleCountByBlockNumber`
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`eth_getUncleByBlockHashAndIndex`
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`eth_getUncleByBlockNumberAndIndex`
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TODO: Add the rest of the standard endpoints and unique endpoints (e.g. getSlice)
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### Testing
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`make test` will run the unit tests
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`make test` setups a clean `vulcanize_testing` db
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## Monitoring
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* Enable http server and metrics using parameters `--http --metrics`
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* ipld-eth-server exposes prometheus metrics at `/metric` endpoint
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* start prometheus using `monitoring/prometheus.yml` config (`prometheus --config.file=monitoring/prometheus.yml`)
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* start grafana, connect to prometheus datasource and import dashboard from `monitoring/grafana/dashboard_main.json`
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## Contributing
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Contributions are welcome!
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VulcanizeDB follows the [Contributor Covenant Code of Conduct](https://www.contributor-covenant.org/version/1/4/code-of-conduct).
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## License
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[AGPL-3.0](LICENSE) © Vulcanize Inc
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