Module '' has already exported a member named 'addTagTypes'

[dankeboy36]

Hi There,

I generate rtk query APIs from multiple OpenAPI specs. All works fine, but when I want to export all the generated code from a single api.ts file, I get an error because the addTagTypes symbol is exported from each generated API file.

Module '' has already exported a member named 'addTagTypes'. Consider explicitly re-exporting to resolve the ambiguity. ts(2308)

This is expected because, unlike the exportName, the addTagTypes cannot be customized:

redux-toolkit/packages/rtk-query-codegen-openapi/src/codegen.ts

Line 158 in d6e7cca

factory.createIdentifier('addTagTypes'),

I am new to this tech stack and wondered how others handle such a name collision when using multiple APIs in a single app.

My example:

base.ts(click to see)

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react'
export const examplesApi = createApi({
    reducerPath: 'examplesApi',
    baseQuery: createBaseQueryFromExamplesApi(), // fetches against api.example.com
    endpoints: () => ({}),
})
export const callbackApi = createApi({
    reducerPath: 'callbackApi',
    baseQuery: createBaseQueryFromCallbackApi(), // fetches against callback.org
    endpoints: () => ({}),
})

examplesApi.ts(click to see)

import { examplesApi as api } from "./base";
export const addTagTypes = [] as const;
const injectedRtkApi = api
  .enhanceEndpoints({
    addTagTypes,
  })
  .injectEndpoints({
    endpoints: (build) => ({
      listVersionsv2: build.query<
        ListVersionsv2ApiResponse,
        ListVersionsv2ApiArg
      >({
        query: () => ({ url: `/` }),
      }),
      getVersionDetailsv2: build.query<
        GetVersionDetailsv2ApiResponse,
        GetVersionDetailsv2ApiArg
      >({
        query: () => ({ url: `/v2` }),
      }),
    }),
    overrideExisting: false,
  });
export { injectedRtkApi as examplesRtkApi };
export type ListVersionsv2ApiResponse = /** status 200 200 response */ Blob;
export type ListVersionsv2ApiArg = void;
export type GetVersionDetailsv2ApiResponse = /** status 200 200 response */
  | Blob
  | /** status 203 203 response */ Blob;
export type GetVersionDetailsv2ApiArg = void;
export const { useListVersionsv2Query, useGetVersionDetailsv2Query } =
  injectedRtkApi;

callbackApi.ts(click to see)

import { callbackApi as api } from "./base";
export const addTagTypes = [] as const;
const injectedRtkApi = api
  .enhanceEndpoints({
    addTagTypes,
  })
  .injectEndpoints({
    endpoints: (build) => ({
      postStreams: build.mutation<PostStreamsApiResponse, PostStreamsApiArg>({
        query: (queryArg) => ({
          url: `/streams`,
          method: "POST",
          params: { callbackUrl: queryArg.callbackUrl },
        }),
      }),
    }),
    overrideExisting: false,
  });
export { injectedRtkApi as callbackRtkApi };
export type PostStreamsApiResponse =
  /** status 201 subscription successfully created */ {
    /** this unique identifier allows management of the subscription */
    subscriptionId: string;
  };
export type PostStreamsApiArg = {
  /** the location where data will be sent.  Must be network accessible
    by the source server
     */
  callbackUrl: string;
};
export const { usePostStreamsMutation } = injectedRtkApi;

api.ts:

export * from './examplesApi';
export * from './callbackApi';  // <-- Module './examplesApi' has already exported a member named 'addTagTypes'. Consider explicitly re-exporting to resolve the ambiguity.

index.ts:

export * from './api'

Would the maintainers consider accepting the customization of the exported addTagTypes symbol as a new feature?

Thank you!

---

Example spec sources:

• api-with-examples.json
• callback-example.json