git.r.bdr.sh - rbdr/forum/blob - src/lib/stores/response_builder.ts

   1 /**
   2  * Utilities to build responses
   3  */
   4
   5 interface AnyError {
   6   message: string
   7 };
   8
   9 export type StoreState<Type> = {
  10         loading: boolean;
  11         data: Type | void;
  12         error: AnyError | void;
  13 };
  14
  15 export function initialResponse<T> (initialState: T): StoreState<T> {
  16   return {
  17     loading: true,
  18     data: initialState,
  19     error: undefined
  20   };
  21 }
  22
  23 export function errorResponse<T> (error: AnyError): StoreState<T> {
  24   return {
  25     loading: false,
  26     data: undefined,
  27     error
  28   };
  29 }
  30
  31 export function response<T> (data: T): StoreState<T> {
  32   return {
  33     loading: false,
  34     data,
  35     error: undefined
  36   };
  37 }