Automatically add default context value for generated queries

[flaviotsf]

We currently use graphql-codegen to generate React Hooks to query our GraphQL server.

Given we currently have 2 endpoints, we do a Split like so:

  const endpoints = ApolloLink.split(
    operation => operation.getContext().serviceName === 'ServiceB',
    SampleLink1
    SampleLink2
  );

What this means is that we need to provide that serviceName context variable everyime we want to reach ServiceB.

Given we have 2 calls to graphql-codegen (one per Service that has their own schema / settings) is there a way to automatically add the baseOptions with the correct context.

Otherwise we need to keep doing this:

 const someQueryQuery = useSomeEntityQuery({
    variables: { id },
    context: {
      serviceName: 'ServiceB',
    },
  });

But I'd prefer if context had a default and I just did this:

 const someQueryQuery = useSomeEntityQuery({
    variables: { id },
  });

I could not find any suitable config.

This is our config today:

    plugins:
      - add: '/* THIS FILE WAS GENERATED BY GRAPHQL CODE GENERATOR. DO NOT EDIT. */'
      - 'typescript-operations'
      - 'typescript-react-apollo'
    config:
      documentMode: 'external'
      importDocumentNodeExternallyFrom: 'near-operation-file'
      withHooks: true
      withHOC: true
      reactApolloVersion: 3
      apolloReactCommonImportFrom: '@apollo/react-common'
      apolloReactHocImportFrom: '@apollo/react-hoc'
      apolloReactHooksImportFrom: '@apollo/react-hooks'
      apolloReactComponentsImportFrom: '@apollo/react-components'

[ardatan]

I am not sure if this is related to graphql-tools.