parse-int.pipe.ts
nest.js/02-intermediate/code/common/pipes/parse-int.pipe.ts
import {
PipeTransform,
Injectable,
ArgumentMetadata,
BadRequestException,
} from '@nestjs/common';
@Injectable()
export class ParseIntPipe implements PipeTransform<string, number> {
transform(value: string, metadata: ArgumentMetadata): number {
const val = parseInt(value, 10);
if (isNaN(val)) {
throw new BadRequestException(
`Validation failed. "${value}" is not a valid number.`,
);
}
return val;
}
}
Bài viết liên quan
app.controller.ts
app.controller.ts — typescript source code from the nest.js learning materials (nest.js/01-beginner/code/app.controller.ts).
Đọc bài viết →app.module.ts
app.module.ts — typescript source code from the nest.js learning materials (nest.js/01-beginner/code/app.module.ts).
Đọc bài viết →app.service.ts
app.service.ts — typescript source code from the nest.js learning materials (nest.js/01-beginner/code/app.service.ts).
Đọc bài viết →main.ts
main.ts — typescript source code from the nest.js learning materials (nest.js/01-beginner/code/main.ts).
Đọc bài viết →todos.controller.ts
todos.controller.ts — typescript source code from the nest.js learning materials (nest.js/01-beginner/code/todos/todos.controller.ts).
Đọc bài viết →todos.module.ts
todos.module.ts — typescript source code from the nest.js learning materials (nest.js/01-beginner/code/todos/todos.module.ts).
Đọc bài viết →