how to write endpoints from emtpyApi for pass transformResponse or for add custom fn

[fatoldsun00]

Hi,

I try to generate endpoints from a openapi file, all is good but all my endpoint forward a x-total variable in the headers. I want retrieve this with a transformResponse(): transformResponse: (apiResponse, meta) => ({ apiResponse, total: Number(meta.response.headers.get('x-total')) }),

Buthow pass this fn in the emptyApi.ts file used by generator ?

My emptyfile.ts looks like

  baseQuery: fetchBaseQuery({
    baseUrl: Config.TOWER_URL + '/',
    prepareHeaders: (headers, { getState }) => {

      const token = (getState() as RootState).login.token;
      if (token) {
        headers.set('authorization', `Bearer ${token}`);
      }
      return headers;
    },
  }),


  endpoints: (build) => {
    return build.query({
      transformResponse: (apiResponse, meta) => ({ apiResponse, total: Number(meta.response.headers.get('x-total')) }),
    });
  },
});```

Anybody can help me ?

Thank

[fatoldsun00]

Ok, i understand that i need t use enhanceEndpoints on my emptyApi.ts file export. But what it's the way to add transformResponse for all request ?

Thanks

[phryneas]

You could wrap your baseQuery in a custom function that modifies the result.

[fatoldsun00]

Hey, i find an other issue where you advice this. I try this way with in createApi

baseQuery(...args) {
    const result = bq(...args);
    if (result?.data) {
      return { ...result, data: result.data.response, total: Number(result.meta?.response?.headers?.get('x-total')) };
    }
    return result;
  },

where bq it's

const bq = fetchBaseQuery({
  baseUrl: Config.URL + '/',
  prepareHeaders: (headers, { getState }) => {
    const token = (getState() as RootState).login.token;
    if (token) {
      headers.set('authorization', `Bearer ${token}`);
    }
    return headers;
  },

but bq(...args) return either promise or data (if data is caching i purpose) so if(result?.data) doesn't exist yet on promise

If i async / await baseQuery() it's throw an error since baseQuery must return {data: YourData}

any advice ?

Thanks for your answer by the way

[phryneas]

baseQuery can also return a Promise<{data: YourData }>, that should not throw any error.

[fatoldsun00]

you right, it's ok, i can return {data: {result:result.data, total : result.meta.header...} }, but result it's not really what i wish.

I wish add a total key on useGetCommentsQuery response like

const { data, total } = useGetCommentsQuery({

where total fill with repsonse.header

There are a way to do this ? :$

Thank

[phryneas]

You can never add anything outside of data, you'd have to add it inside of that.

[fatoldsun00]

ok, thank for your time