createJsonMutation since v0.2.0 ​

Formulae ​

createJsonMutation(config) ​

Config fields:

• params?: parameters for the Mutation

  • You can declare Mutation parameters by call declareParams function.
  • If not passed, Mutation will be created without parameters.

• request: declarative rules to formulate request to the API.

  • method: String
  • url: Sourced string
  • body: Sourced Json, any value which can be serialized to JSON and parsed back without loses by JavaScript native module JSON. For example, { a: 1, b: 2 }. Note that body cannot be used in GET and HEAD requests.
  • query?: Sourced object, keys of the object must be String and values must be String or Array<String> or (since v0.8.0) Sourced String containing ready-to-use query string
  • headers?: Sourced object, keys of the object must be String and values must be String or Array<String>

• response: declarative rules to handle response from the API.

  • contract: Contract allows you to validate the response and decide how your application should treat it — as a success response or as a failed one.
  • validate?: Validator allows you to dynamically validate received data.
  • mapData?: optional mapper for the response data, available overloads:
    • ({ result, params }) => mapped
    • { source: Store, fn: ({ result, params }, source) => mapped }
  • status.expected: number or Array<number> of expected HTTP status codes, if the response status code is not in the list, the mutation will be treated as failed

• concurrency?: concurrency settings for the Query

  • abort?: Event after calling which all in-flight requests will be aborted