add validators

package.json

@@ -24,6 +24,8 @@
     "@nestjs/core": "^11.0.1",
     "@nestjs/mapped-types": "*",
     "@nestjs/platform-express": "^11.0.1",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.2",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },

src/main.ts

@@ -1,8 +1,10 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
+import { ValidationPipe } from '@nestjs/common';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
+  app.useGlobalPipes(new ValidationPipe());
   await app.listen(process.env.PORT ?? 3000);
 }
 bootstrap();

src/task/docorators/start-with.decorator.ts

@@ -0,0 +1,24 @@
+import { registerDecorator, ValidatorOptions } from 'class-validator';
+
+export function StartsWiths(
+  prefix: string,
+  validatorOption?: ValidatorOptions,
+) {
+  return (obj: object, propertyName: string) => {
+    registerDecorator({
+      name: 'startsWith',
+      target: obj.constructor,
+      propertyName,
+      options: validatorOption,
+      validator: {
+        validate(value: any): Promise<boolean> | boolean {
+          console.log('value', value);
+          return typeof value === 'string' && value.startsWith(prefix);
+        },
+        defaultMessage(): string {
+          return `Should start with "${prefix}"`;
+        },
+      },
+    });
+  };
+}

src/task/dto/create-task.dto.ts

@@ -1,3 +1,39 @@
-export class CreateTaskDto {
+import {
-  title: string;
+  IsArray,
+  IsEnum,
+  IsInt,
+  IsNotEmpty,
+  IsOptional,
+  IsPositive,
+  IsString,
+  Length,
+} from 'class-validator';
+import { StartsWiths } from '../docorators/start-with.decorator';
+
+export enum TaskTag {
+  WORK = 'work',
+  STUDY = 'study',
+  HOME = 'home',
+}
+
+export class CreateTaskDto {
+  @IsString()
+  @IsNotEmpty()
+  @StartsWiths('task')
+  @Length(2, 10)
+  title: string;
+
+  @IsString()
+  @IsOptional()
+  description: string;
+
+  @IsInt({})
+  @IsOptional()
+  @IsPositive()
+  priority: number;
+
+  @IsArray()
+  @IsEnum(TaskTag, { each: true })
+  @IsOptional()
+  tags: TaskTag[];
 }

src/task/dto/update-task.dto.ts

@@ -1,4 +1,11 @@
+import { IsBoolean, IsNotEmpty, IsString, Length } from 'class-validator';
+
 export class UpdateTaskDto {
+  @IsString({ message: 'Должно быть строкой' })
+  @IsNotEmpty({ message: 'Не должно быть пустым' })
+  @Length(2, 40, { message: 'Должно быть от 2 до 40 символов' })
   title: string;
+
+  @IsBoolean({ message: 'Должно быть булевым выражением' })
   isCompleted: boolean;
 }

src/task/task.service.ts

@@ -32,11 +32,14 @@ export class TaskService {
   }
 
   create(dto: CreateTaskDto) {
-    const { title } = dto;
+    const { title, description, priority, tags } = dto;
     const newTask = {
       id: this.tasks.length + 1,
       title,
       isCompleted: false,
+      description,
+      priority,
+      tags,
     };
 
     this.tasks.push(newTask);

yarn.lock

@@ -1462,6 +1462,11 @@
     "@types/methods" "^1.1.4"
     "@types/superagent" "^8.1.0"
 
+"@types/validator@^13.11.8":
+  version "13.15.1"
+  resolved "https://registry.yarnpkg.com/@types/validator/-/validator-13.15.1.tgz#52f3617eb5ba30dd0018380c64568440d0b4de0a"
+  integrity sha512-9gG6ogYcoI2mCMLdcO0NYI0AYrbxIjv0MDmy/5Ywo6CpWWrqYayc+mmgxRsCgtcGJm9BSbXkMsmxGah1iGHAAQ==
+
 "@types/yargs-parser@*":
   version "21.0.3"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-21.0.3.tgz#815e30b786d2e8f0dcd85fd5bcf5e1a04d008f15"
@@ -2264,6 +2269,20 @@ cjs-module-lexer@^1.0.0:
   resolved "https://registry.yarnpkg.com/cjs-module-lexer/-/cjs-module-lexer-1.4.3.tgz#0f79731eb8cfe1ec72acd4066efac9d61991b00d"
   integrity sha512-9z8TZaGM1pfswYeXrUpzPrkx8UnWYdhJclsiYMm6x/w5+nN+8Tf/LnAgfLGQCm59qAOxU8WwHEq2vNwF6i4j+Q==
 
+class-transformer@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/class-transformer/-/class-transformer-0.5.1.tgz#24147d5dffd2a6cea930a3250a677addf96ab336"
+  integrity sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==
+
+class-validator@^0.14.2:
+  version "0.14.2"
+  resolved "https://registry.yarnpkg.com/class-validator/-/class-validator-0.14.2.tgz#a3de95edd26b703e89c151a2023d3c115030340d"
+  integrity sha512-3kMVRF2io8N8pY1IFIXlho9r8IPUUIfHe2hYVtiebvAzU2XeQFXTv+XI4WX+TnXmtwXMDcjngcpkiPM0O9PvLw==
+  dependencies:
+    "@types/validator" "^13.11.8"
+    libphonenumber-js "^1.11.1"
+    validator "^13.9.0"
+
 cli-cursor@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-3.1.0.tgz#264305a7ae490d1d03bf0c9ba7c925d1753af307"
@@ -4051,6 +4070,11 @@ levn@^0.4.1:
     prelude-ls "^1.2.1"
     type-check "~0.4.0"
 
+libphonenumber-js@^1.11.1:
+  version "1.12.8"
+  resolved "https://registry.yarnpkg.com/libphonenumber-js/-/libphonenumber-js-1.12.8.tgz#20e5b57f24e60359d795e2fa2ee185776331e34f"
+  integrity sha512-f1KakiQJa9tdc7w1phC2ST+DyxWimy9c3g3yeF+84QtEanJr2K77wAmBPP22riU05xldniHsvXuflnLZ4oysqA==
+
 lines-and-columns@^1.1.6:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/lines-and-columns/-/lines-and-columns-1.2.4.tgz#eca284f75d2965079309dc0ad9255abb2ebc1632"
@@ -5527,6 +5551,11 @@ v8-to-istanbul@^9.0.1:
     "@types/istanbul-lib-coverage" "^2.0.1"
     convert-source-map "^2.0.0"
 
+validator@^13.9.0:
+  version "13.15.15"
+  resolved "https://registry.yarnpkg.com/validator/-/validator-13.15.15.tgz#246594be5671dc09daa35caec5689fcd18c6e7e4"
+  integrity sha512-BgWVbCI72aIQy937xbawcs+hrVaN/CZ2UwutgaJ36hGqRrLNM+f5LUT/YPRbo8IV/ASeFzXszezV+y2+rq3l8A==
+
 vary@^1, vary@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"