40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
import {
|
|
ArgumentsHost,
|
|
Catch,
|
|
ExceptionFilter,
|
|
HttpException,
|
|
} from '@nestjs/common';
|
|
|
|
import { Response } from 'express';
|
|
|
|
// In case of exception in middleware run before the CORS middleware (eg: JSON Middleware that checks the request body),
|
|
// the CORS headers are missing in the response.
|
|
// This class add CORS headers to exception response to avoid misleading CORS error
|
|
@Catch()
|
|
export class UnhandledExceptionFilter implements ExceptionFilter {
|
|
catch(exception: any, host: ArgumentsHost) {
|
|
const ctx = host.switchToHttp();
|
|
const response = ctx.getResponse<Response>();
|
|
|
|
if (!response.header) {
|
|
return;
|
|
}
|
|
|
|
// TODO: Check if needed, remove otherwise.
|
|
response.header('Access-Control-Allow-Origin', '*');
|
|
response.header(
|
|
'Access-Control-Allow-Methods',
|
|
'GET,HEAD,PUT,PATCH,POST,DELETE',
|
|
);
|
|
response.header(
|
|
'Access-Control-Allow-Headers',
|
|
'Origin, X-Requested-With, Content-Type, Accept',
|
|
);
|
|
|
|
const status =
|
|
exception instanceof HttpException ? exception.getStatus() : 500;
|
|
|
|
response.status(status).json(exception.response);
|
|
}
|
|
}
|