[client-preset] Apollo client and Persisted Queries: __typename in generated DocumentNode

[fadomire]

Hello,

i'm trying to migrate to the new recommended client-preset

• I'm using "@apollo/client": "3.8.8"
• i'm using "@graphql-codegen/client-preset": "4.1.0"
• i'm using persisted queries
• my queries / fragments are colocated in .graphql files

Here are my questions:

1. Auto __typename: is it possible to add __typename automaticaly to generated queries in persisted-documents.json ? apollo needs __typename to handle its cache properly. Without adding manually, persisted queries currently dont work with apollo in my setup. Before, i was using graphql-codegen-persisted-query-ids that add __typename automaticaly to generated DocumentNode
2. Unused gql.ts : as i have .graphql files colocated with my components, i have no use for the grapqhl functions in this file, so i guess no use for the babelOptimizerPlugin ?
3. Hash function: would be great to be able to provide a custom hashing function, not only choosing between sha256 or sha1 (for e.g to limit hash length to minimum unique hash for bundle size / bandwith reduction)
4. Compiled AST runtime / buildtime: would also be great to be able to choose between compiling DocumentNode AST at runtime (keeping gql / graphql function) vs compiling at buildtime (increased bundle size but better runtime perf). Or are we sure it is always better to pre-compile them ?

Thanks for any clarifications on those points 🙏

[fadomire]

Damn, i think i did not read the doc properly (many times for sure), i found the answer to 1.
https://the-guild.dev/graphql/codegen/plugins/presets/preset-client#normalized-caches-urql-and-apollo-client

  generates: {
    './gql/': {
      preset: 'client',
      plugins: [],
      presetConfig: {
        persistedDocuments: true
      },
      documentTransforms: [addTypenameDocumentTransform]
    }
  }

[fadomire]

there was a typo in the doc on the function name
i made a PR
#9782