GenQL

GenQL is a great library and CLI tool that automatically generates a fully typed SDK with a built-in GQL client. It works flawlessly with Hasura and is recommended for DipDup on the client side.

Project structure

GenQL CLI generates a ready-to-use package, compiled and prepared to publish to NPM. A typical setup is a mono repository containing several packages, including the auto-generated SDK and your front-end application.

project_root/
├── package.json
└── packages/
    ├── app/
    │   ├── package.json
    │   └── src/
    └── sdk/
        └── package.json

SDK package config

Your minimal package.json file will look like the following:

{
  "name": "%PACKAGE_NAME%",
  "version": "0.0.1",
  "main": "dist/index.js",
  "types": "dist/index.d.ts",
  "devDependencies": {
    "@genql/cli": "^2.6.0"
  },
  "dependencies": {
    "@genql/runtime": "2.6.0",
    "graphql": "^15.5.0"
  },
  "scripts": {
    "build": "genql --endpoint %GRAPHQL_ENDPOINT% --output ./dist"
  }
}

That's it! Now you only need to install dependencies and execute the build target:

yarn
yarn build

Read more about CLI options available.

Demo

Create a package.json file with

• %PACKAGE_NAME% => metadata-sdk
• %GRAPHQL_ENDPOINT% => https://metadata.dipdup.net/v1/graphql

And generate the client:

yarn
yarn build

Then create new file index.ts and paste this query:

import { createClient, everything } from './dist'

const client = createClient()

client.chain.query
    .token_metadata({ where: { network: { _eq: 'mainnet' } }})
    .get({ ...everything })
    .then(res => console.log(res))

We need some additional dependencies to run our sample:

yarn add typescript ts-node

Finally:

npx ts-node index.ts

You should see a list of tokens in your console with metadata attached.