Method #dispatch

packages/query-core/src/mutation.ts:315–383

(action: Action<TData, TError, TVariables, TOnMutateResult>)

  }

  #dispatch(action: Action<TData, TError, TVariables, TOnMutateResult>): void {
    const reducer = (
      state: MutationState<TData, TError, TVariables, TOnMutateResult>,
    ): MutationState<TData, TError, TVariables, TOnMutateResult> => {
      switch (action.type) {
        case 'failed':
          return {
            ...state,
            failureCount: action.failureCount,
            failureReason: action.error,
          }
        case 'pause':
          return {
            ...state,
            isPaused: true,
          }
        case 'continue':
          return {
            ...state,
            isPaused: false,
          }
        case 'pending':
          return {
            ...state,
            context: action.context,
            data: undefined,
            failureCount: 0,
            failureReason: null,
            error: null,
            isPaused: action.isPaused,
            status: 'pending',
            variables: action.variables,
            submittedAt: Date.now(),
          }
        case 'success':
          return {
            ...state,
            data: action.data,
            failureCount: 0,
            failureReason: null,
            error: null,
            status: 'success',
            isPaused: false,
          }
        case 'error':
          return {
            ...state,
            data: undefined,
            error: action.error,
            failureCount: state.failureCount + 1,
            failureReason: action.error,
            isPaused: false,
            status: 'error',
          }
      }
    }
    this.state = reducer(this.state)