Method #notify

packages/query-core/src/mutationObserver.ts:240–305

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

  }

  #notify(action?: Action<TData, TError, TVariables, TOnMutateResult>): void {
    notifyManager.batch(() => {
      // First trigger the mutate callbacks
      if (this.#mutateOptions && this.hasListeners()) {
        const variables = this.#currentResult.variables!
        const onMutateResult = this.#currentResult.context

        const context = {
          client: this.#client,
          meta: this.options.meta,
          mutationKey: this.options.mutationKey,
        } satisfies MutationFunctionContext

        if (action?.type === 'success') {
          try {
            this.#mutateOptions.onSuccess?.(
              action.data,
              variables,
              onMutateResult,
              context,
            )
          } catch (e) {
            void Promise.reject(e)
          }
          try {
            this.#mutateOptions.onSettled?.(
              action.data,
              null,
              variables,
              onMutateResult,
              context,
            )
          } catch (e) {
            void Promise.reject(e)
          }
        } else if (action?.type === 'error') {
          try {
            this.#mutateOptions.onError?.(
              action.error,
              variables,
              onMutateResult,
              context,
            )
          } catch (e) {
            void Promise.reject(e)
          }
          try {
            this.#mutateOptions.onSettled?.(
              undefined,
              action.error,
              variables,
              onMutateResult,
              context,
            )
          } catch (e) {
            void Promise.reject(e)
          }
        }