configureCrudReducer

Fausto NA edited this page Jul 20, 2017 · 2 revisions

The configureCrudReducer builder is used to export the default crudReducer:

export const defaultExtractors = {
  index: action => action.payload,
  meta: () => ({}),
  error: action => action.payload,
  single: action => action.payload,
}

export const crudReducer = configureCrudReducer(defaultExtractors)

You can use it in your application's code to create CRUD reducers that properly consume the data returned by your back-end. For example, imagine you call GET on your /books endpoint, expecting a server response with all available books in the following JSON format:

{
  "data": [{ "id": 0, "title": "The Stranger" }, { "id": 1, "title": "The Plague" }],
  "errors": [],
  "meta_data": { "page": 1, "total_pages": 1 },
}

You can build your own crudReducer that takes data in that format like this:

export const myCrudReducer = configureCrudReducer({
  index: action => action.payload.data,
  errors: action => action.payload.errors,
  meta: action => action.payload.meta_data,
  single: action => action.payload.data, // This wouldn't be used on a fetchIndex dispatch
})

Use this to create your own CRUD reducers that know how to talk to the different APIs your application uses. Here's documentation on the functionality that the generated reducer implements.

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