readme

README.md

 # Wenyuanwall Fetch
 
 Data fetcher for https://twitter.com/Hamimelon7/
+
+## Config
+
+Refer to `config.example.yaml` in project, and put it in `config.yaml`.
+
+## API
+
+### Blacklist
+
+GET /api/blacklist
+
+#### Query
+
+- `since` Since time, in `YYYY-MM-DD` format.

src/blacklist/blacklist.controller.ts

 import { Controller, Get, Query } from '@nestjs/common';
 import { BlacklistService } from './blacklist.service';
 import { ApiOkResponse, ApiOperation, ApiQuery } from '@nestjs/swagger';
-import { ReturnMessageDto } from '../dto/ReturnMessage.dto';
+import {
+  BlankReturnMessageDto,
+  ReturnMessageDto,
+} from '../dto/ReturnMessage.dto';
 import { HamiResult } from '../dto/hami.dto';
 
 const HamiResultDto = ReturnMessageDto([HamiResult]);
@@ -15,6 +18,9 @@ export class BlacklistController {
   @ApiQuery({ name: 'since', description: '获取黑名单的起始时间' })
   @ApiOkResponse({ type: HamiResultDto })
   async getBlacklist(@Query('since') since: string) {
+    if (!since) {
+      throw new BlankReturnMessageDto(400, 'since is required');
+    }
     const data = await this.blacklist.fetchBlacklist(since);
     return new HamiResultDto(200, 'success', data);
   }