cerc-io/watcher-ts
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Generate IPLD blocks table and related GQL API (#260)

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* Add ipld-blocks entity generation

* Populate ipld-blocks table

* Rename ipld-block entity and update after each event

* Move ipld-hook to hooks.ts

* Change IPLD block structure

* Add cid field in blocks

* Fetch prev. IPLDBlock for a contract

* GQL API to query IPLDBlock by CID

* Save cid in blocks in existing watchers

* Update codegen docs

* GQL API for getting last derived state (#3)

* GQL API for getting last derived state

* Rename query to getState

* Change query names to getState and getStateByCid

* Save BigInt as string

* Move function to prepare IPLDBlock to indexer

* Refactor IPLDBlock hook

* Add genesis hook

* Call post-block hook after a block is marked as complete

* Add IPLDBlock checkpointing

* Use queryRunner instead of a new repo for queries

* Add a query to get block in ipld-eth-client

* Get latest checkpoints for all contracts for checkpointing.

* Call post-block hook in a queue

* Pass server config to Indexer in watch-contract cli

Co-authored-by: nikugogoi <nabarun@deepstacksoft.com>
This commit is contained in:
prathamesh0
2021-12-28 16:08:04 +05:30
committed by nabarun
co-authored by nabarun
parent 7b6f6e468f
commit 51b200709b
44 changed files with 884 additions and 152 deletions
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packages/codegen/README.md
+7 -5
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@@ -53,13 +53,13 @@
yarn codegen --input-file ./test/examples/contracts/ERC721.sol --contract-name ERC721 --output-folder ../my-erc721-watcher --mode storage --kind lazy
```
Generate code for `ERC721` contract in both `eth_call` and `storage` mode, `active` kind:
Generate code for `ERC20` contract in both `eth_call` and `storage` mode, `active` kind:
```bash
yarn codegen --input-file ../../node_modules/@openzeppelin/contracts/token/ERC721/ERC721.sol --contract-name ERC721 --output-folder ../demo-erc721-watcher --mode all --kind active
yarn codegen --input-file ../../node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol --contract-name ERC20 --output-folder ../demo-erc20-watcher --mode all --kind active
```
This will create a folder called `demo-erc721-watcher` containing the generated code at the specified path. Follow the steps in [Run Generated Watcher](#run-generated-watcher) to setup and run the generated watcher.
This will create a folder called `demo-erc20-watcher` containing the generated code at the specified path. Follow the steps in [Run Generated Watcher](#run-generated-watcher) to setup and run the generated watcher.
## Run Generated Watcher
@@ -79,7 +79,9 @@
* Edit the custom hook function `handleEvent` (triggered on an event) in `src/hooks.ts` to perform corresponding indexing using the `Indexer` object.
* Refer to `src/hooks.example.ts` for an example hook function for events in an ERC20 contract.
* Edit the custom hook function `handleBlock` (triggered on a block) in `src/hooks.ts` to save `IPLDBlock`s using the `Indexer` object.
* The existing example hooks in `src/hooks.ts` are for an `ERC20` contract.
### Run
@@ -106,7 +108,7 @@
* To watch a contract:
```bash
yarn watch:contract --address <contract-address> --kind ERC721 --starting-block [block-number]
yarn watch:contract --address <contract-address> --kind <contract-kind> --starting-block [block-number]
```
* To fill a block range: