12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152
import {  ServerRequest,  Response,  Status,  STATUS_TEXT,} from "./deps.ts";import { loggerError } from "./logger.ts";
type PromiseOr<T> = Promise<T> | T;
export interface Params {  [k: string]: string;}
interface HandlerResponse {  // 请求响应 Response  (request: ServerRequest, params: Params): PromiseOr<Response>;}interface HandlerVoid {  // 把处理请求移交给自己  (request: ServerRequest, params: Params): PromiseOr<void>;}interface HandlerNull {  // 匹配下一个路由，如果有  (request: ServerRequest, params: Params): PromiseOr<null>;}
export type Handler = HandlerResponse | HandlerVoid | HandlerNull;
export const errorHandlers = {  async notFound(request: ServerRequest) {    try {      await request.respond({        status: Status.NotFound,        body: STATUS_TEXT.get(Status.NotFound),      });    } catch (e) {      loggerError(e);    }  },  async internalServerError(request: ServerRequest, error: any) {    try {      await request.respond({        status: Status.InternalServerError,        body: `${STATUS_TEXT.get(Status.InternalServerError)}: \n${error}`,      });    } catch (e) {      loggerError(e);    }  },};