96 lines
2.6 KiB
TypeScript
96 lines
2.6 KiB
TypeScript
import { NestFactory } from '@nestjs/core';
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import { AppModule } from './app.module';
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import {
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BadRequestException,
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ValidationError,
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ValidationPipe,
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} from '@nestjs/common';
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import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
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import { SwaggerDocumentOptions } from '@nestjs/swagger';
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async function bootstrap() {
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const app = await NestFactory.create(AppModule, {
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cors: {
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origin: '*',
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methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
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preflightContinue: false,
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optionsSuccessStatus: 204,
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},
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});
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function extractConstraints(validationErrors: ValidationError[]) {
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const constraints: { [key: string]: string }[] = [];
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function traverse(errors: ValidationError[]) {
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// console.log(errors);
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// console.log("--------------");
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for (const error of errors) {
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// If the error has constraints, add them to the list
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// console.log(error);
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// console.log("--------------");
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if (error.constraints) {
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constraints.push(error.constraints);
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}
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// // If there are children, recursively traverse them
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if (error.children && error.children.length > 0) {
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traverse(error.children);
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}
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}
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}
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traverse(validationErrors);
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return constraints;
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}
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const customExceptionFactory = (validationErrors: ValidationError[]) => {
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const res = extractConstraints(validationErrors);
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const newResult = res
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.map((x) => {
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const errorMessage = x[Object.keys(x)[0]];
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return { message: errorMessage };
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})
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.filter(Boolean);
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return new BadRequestException({
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message: 'Validation failed',
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errors: newResult,
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});
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};
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app.useGlobalPipes(
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new ValidationPipe({
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transform: true,
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exceptionFactory: customExceptionFactory,
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whitelist: true,
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stopAtFirstError: true,
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forbidNonWhitelisted: true,
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}),
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);
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// app.useGlobalPipes(new ValidationPipe({ exceptionFactory:customExceptionFactory, whitelist: true, forbidNonWhitelisted: true, transform: true }));
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const config = new DocumentBuilder()
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.setTitle('API')
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.setDescription('API description')
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.setVersion('1.0')
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.addServer('http://localhost:3000', 'Development Server 1')
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.addServer(
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'https://dev.alphaomegainfosys.com/test-api',
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'Development Server 2',
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)
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.build();
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const options: SwaggerDocumentOptions = {
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autoTagControllers: false,
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};
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const documentFactory = () =>
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SwaggerModule.createDocument(app, config, options);
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SwaggerModule.setup('api', app, documentFactory);
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await app.listen(process.env.PORT ?? 3000);
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}
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bootstrap();
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