82 lines
2.5 KiB
TypeScript
82 lines
2.5 KiB
TypeScript
import { NestFactory } from '@nestjs/core';
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import { AppModule } from './app.module';
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import { BadRequestException, ValidationError, ValidationPipe } 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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let res = extractConstraints(validationErrors);
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let newResult = res.map(x => {
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const errorMessage = x[Object.keys(x)[0]];
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return { message: errorMessage };
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}).filter(Boolean);
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return new BadRequestException({ message: 'Validation failed', errors: newResult });
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};
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app.useGlobalPipes(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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// 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("https://dev.alphaomegainfosys.com/test-api", "Development Server 2")
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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 = () => 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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