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Setting up Eslint for Graphql and Apollo Client

Install the eslint plugin by running the following in the same directory as your package.json file.

$ npm install --save-dev eslint-plugin-graphql

Next, we need to fetch the graphql schema

$ curl -H 'Authorization: Bearer <auth-token>' 'https://data.<cluster-name>.hasura-app.io/v1alpha1/graphql/schema' | jq -r '.schema' > schema.graphql

Now that you have the GraphQL schema, you can generate schema.json as follows:

$ npm install -g apollo-codegen
$ apollo-codegen introspect-schema schema.graphql --output schema.json

The above command will save a schema.json file in your current directory.

Next, create a file named .eslintrc.js in the directory with your package.json file

module.exports = {
  parser: "babel-eslint",
  rules: {
    "graphql/template-strings": ['error', {
      env: 'apollo',

      // Import your schema JSON here
      schemaJson: require('./schema.json'),
    }]
  },
  plugins: [
    'graphql'
  ]
}

To know about the other rules that you can apply, check out the repository here.

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