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Subgraph schema and templates to index the activity of OpenZeppelin Contracts.

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OpenZeppelin Subgraphs

Introduction

This repo contains subgraph schema and templates to index the activity of OpenZeppelin Contracts. For each of the supported OpenZeppelin modules x, this repo provides:

  • Primitives to generate a graphql schema: src/datasource/x.gql.json

    In order to allow composability, the schema are not defined in the graphql format but rather in a dedicated json format which can be assembled and compiled to graphql using the graph-compiler tool from @amxx/graphprotocol-utils. Graphql version for each module is also available in generated/x.schema.graphql

  • Template to generate a subgraph manifest: src/datasource/x.yaml

    This file lists all the events that the datasources should listen to, and links that to the corresponding indexing logic. Similarly to the schema, the manifest can be generated procedurally from a JSON app description.

  • Indexing logic: src/datasources/x.ts and (optionally) src/fetch/x.ts

    This is the core logic that processes the events and to index the onchain activity.

Suported modules

  • AccessControl
  • ERC20
  • ERC721
  • ERC1155
  • ERC1967Upgrade
  • Governor
  • Ownable
  • Pausable
  • Timelock

Usage

To use OpenZeppelin Subgraphs, install them in your local project directory and follow the steps outlined in How to build my app's subgraph:

npm install @openzeppelin/subgraphs

How to build my app's subgraph

In order to build your subgraph, the first step is to create a JSON file listing the modules you want to index. Examples of such config can be found in the config folder.

For example, configs/sample.json describes an app with 4 contracts, the first one is an ERC20 with AccessControl, while the 3 others are ERC721 registries.

{
  "output": "generated/sample.",
  "chain": "mainnet",
  "datasources": [
    { "address": "0xA3B26327482312f70E077aAba62336f7643e41E1", "startBlock": 11633151, "module": [ "erc20", "accesscontrol" ] },
    { "address": "0xB1C52075b276f87b1834919167312221d50c9D16", "startBlock":  9917641, "module": "erc721" },
    { "address": "0x799DAa22654128d0C64d5b79eac9283008158730", "startBlock":  9917642, "module": "erc721" },
    { "address": "0xC76A18c78B7e530A165c5683CB1aB134E21938B4", "startBlock":  9917639, "module": "erc721" }
  ]
}

It can be compiled by doing

npx graph-compiler \
  --config configs/sample.json \
  --include node_modules/@openzeppelin/subgraphs/src/datasources \
  --export-schema \
  --export-subgraph

This will create two files: generated/sample.schema.graphql and generated/sample.subgraph.yaml that can be used to build and deploy the corresponding subgraph.

Note: startBlock is optional but will improve your subgraph initial indexing speed.

Live deployments

Admin (Access Control + Ownable + ERC1967)

Network Config Queries (HTTP) Subscriptions (WS)
Mainnet configs/live/mainnet/admin.json https://api.thegraph.com/subgraphs/name/amxx/access-control wss://api.thegraph.com/subgraphs/name/amxx/access-control
BSC configs/live/bsc/admin.json https://api.thegraph.com/subgraphs/name/amxx/access-control-bsc wss://api.thegraph.com/subgraphs/name/amxx/access-control-bsc
Matic configs/live/matic/admin.json https://api.thegraph.com/subgraphs/name/amxx/access-control-matic wss://api.thegraph.com/subgraphs/name/amxx/access-control-matic
XDai configs/live/xdai/admin.json https://api.thegraph.com/subgraphs/name/amxx/access-control-xdai wss://api.thegraph.com/subgraphs/name/amxx/access-control-xdai

NFTs (ERC721 + ERC1155)

Network Config Queries (HTTP) Subscriptions (WS)
Mainnet configs/live/mainnet/nfts.json https://api.thegraph.com/subgraphs/name/amxx/nft-mainnet wss://api.thegraph.com/subgraphs/name/amxx/nft-mainnet
BSC configs/live/bsc/nfts.json https://api.thegraph.com/subgraphs/name/amxx/nft-bsc wss://api.thegraph.com/subgraphs/name/amxx/nft-bsc
Matic configs/live/matic/nfts.json https://api.thegraph.com/subgraphs/name/amxx/nft-matic wss://api.thegraph.com/subgraphs/name/amxx/nft-matic
XDai configs/live/xdai/nfts.json https://api.thegraph.com/subgraphs/name/amxx/nft-xdai wss://api.thegraph.com/subgraphs/name/amxx/nft-xdai

ERC721 only

Network Config Queries (HTTP) Subscriptions (WS)
Mainnet configs/live/mainnet/eip721.json https://api.thegraph.com/subgraphs/name/amxx/eip721-subgraph wss://api.thegraph.com/subgraphs/name/amxx/eip721-subgraph

ERC1155 only

Network Config Queries (HTTP) Subscriptions (WS)
Mainnet configs/live/mainnet/eip1155.json https://api.thegraph.com/subgraphs/name/amxx/eip1155-subgraph wss://api.thegraph.com/subgraphs/name/amxx/eip1155-subgraph

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