@nestjs/platform-express/multer/interceptors/file.interceptor.js

Nest - modern, fast, powerful node.js web framework (@platform-express)

import { __decorate, __metadata, __param } from "tslib";
import { Inject, mixin, Optional, } from '@nestjs/common';
import multer from 'multer';
import { MULTER_MODULE_OPTIONS } from '../files.constants.js';
import { transformException } from '../multer/multer.utils.js';
/**
 * @param fieldName
 * @param localOptions
 *
 * @publicApi
 */
export function FileInterceptor(fieldName, localOptions) {
    let MixinInterceptor = class MixinInterceptor {
        multer;
        constructor(options = {}) {
            this.multer = multer({
                ...options,
                ...localOptions,
            });
        }
        async intercept(context, next) {
            const ctx = context.switchToHttp();
            await new Promise((resolve, reject) => this.multer.single(fieldName)(ctx.getRequest(), ctx.getResponse(), (err) => {
                if (err) {
                    const error = transformException(err);
                    return reject(error);
                }
                resolve();
            }));
            return next.handle();
        }
    };
    MixinInterceptor = __decorate([
        __param(0, Optional()),
        __param(0, Inject(MULTER_MODULE_OPTIONS)),
        __metadata("design:paramtypes", [Object])
    ], MixinInterceptor);
    const Interceptor = mixin(MixinInterceptor);
    return Interceptor;
}