Custom graphql codegen plugin

This plugin extends the existing plugin @graphql-codegen/typescript to generate only the object types used in operations.

Like the existing plugin, this plugin works well with @graphql-codegen/typescript-operations to generate global types and operation types (as well as other operation resources) based on the graphql schema and operations. The plugin @graphql-codegen/typescript does not currently support generating only the object types used in operations. Unfortunately, this does not work as intended when working with a large graphql schema. The maintainer for the codegen is aware of this use case and are planning to improve the existing plugins.

In the meantime, the source of this plugin is cloned from one of the contributors. This would serve as an intermediate solution.

Usage

Replace @graphql-codegen/typescript with the package name of this plugin.

In your codegen.yml use the following configs:

• omitObjectTypes: false
• preResolveTypes: true

With these configurations, based on the instrospected schema (downloaded from remote graphql endpoint) and operations, it will generate the following:

• global types including scalars, enums, input types, and object types for the operations.
• operation types and resources. The operation types will use primitive types as much as possible.

References

• Source of the plugin: https://github.com/dotansimha/graphql-code-generator/pull/7150