feat(tsd): add ctx.logger and logger.error support Error object (#1108)

index.d.ts

@@ -35,9 +35,11 @@ export interface Logger {
   info(info: string, ...args: string[]): void;
   warn(info: string, ...args: string[]): void;
   debug(info: string, ...args: string[]): void;
-  error(info: string, ...args: string[]): void;
+  error(info: string | Error, ...args: string[]): void;
 }
 
+export type RequestArrayBody = any[];
+export type RequestObjectBody = { [key: string]: any };
 interface Request extends KoaApplication.Request { // tslint:disable-line
   /**
    * detect if response should be json
@@ -116,6 +118,8 @@ interface Request extends KoaApplication.Request { // tslint:disable-line
    * ```
    */
   query: { [key: string]: string };
+
+  body: RequestArrayBody | RequestObjectBody;
 }
 
 interface Response extends KoaApplication.Response { // tslint:disable-line
@@ -724,6 +728,11 @@ export interface Context extends KoaApplication.Context {
    */
   curl(url: string, opt: any): Promise<any>;
 
+  /**
+   * Get logger by name, it's equal to app.loggers['name'], but you can extend it with your own logical
+   */
+  getLogger(name: string): Logger;
+
   /**
    * Render a file by view engine
    * @param {String} name - the file path based on root

test/fixtures/apps/app-ts/app/controller/foo.ts

@@ -1,4 +1,4 @@
-import { Controller } from 'egg';
+import { Controller, RequestObjectBody } from 'egg';
 
 // add user controller and service
 declare module 'egg' {
@@ -10,9 +10,18 @@ declare module 'egg' {
 // controller
 export default class FooController extends Controller {
   async getData() {
-    this.ctx.body = await this.ctx.service.foo.bar();
+    try {
+      this.ctx.body = await this.ctx.service.foo.bar();
+    } catch (e) {
+      const body: RequestObjectBody = this.ctx.request.body;
+      this.app.logger.info(e.name, body.foo);
+    }
   }
   async getBar() {
-    this.ctx.body = await this.service.foo.bar();
+    try {
+      this.ctx.body = await this.service.foo.bar();
+    } catch (e) {
+      this.ctx.logger.error(e);
+    }
   }
 }