[plugin-graphql] Allow .graphqls file extension

[IanVS]

• Rollup Plugin Name: @rollup/plugin-graphql
• Rollup Plugin Version: 1.0.0

Feature Use Case

My graphql schema is named schema.graphqls, which is the default from gqlgen (https://gqlgen.com/)

Feature Proposal

I think the plugin should include .graphqls alongside .gql and .graphql, or even make it configurable.

[shellscape]

Quick question: is there an RFC or ISO that covers graphql file naming?

[IanVS]

Unfortunately not that I know of, graphql doesn't specify file names in the spec. There was an issue to propose a recommendation, but it was closed without an official decision I believe (graphql/graphql-spec#203).

Spring and gqlgen (and maybe others?) use .graphqls for schemas, and it's supported by most other tooling out there. Ref 99designs/gqlgen#1047 for example.

[fmatosqg]

Adding my 2 cents, android apollo uses .sdl for schemas but also support .json. So far I'm not aware/able to have apollo handle schemas in .graphql file extension.

apollographql/apollo-tooling#1408

Edit: apollo also supports .graphqls extension: apollographql/apollo-kotlin#3083 (comment)