NestJS Transmit

Integrate Transmit into your NestJS applications.

Installation

$ npm install @quicksend/nestjs-transmit @quicksend/transmit

Usage

TransmitModule

First start by registering the TransmitModule in your application:

import { Module } from "@nestjs/core";
import { TransmitModule } from "@quicksend/nestjs-transmit";

@Module({
  imports: [
    TransmitModule.register()
  ]
})
export class FilesModule {}

You can optionally configure Transmit by passing in TransmitOptions while registering the module:

import { Module } from "@nestjs/core";
import { TransmitModule } from "@quicksend/nestjs-transmit";

@Module({
  imports: [
    TransmitModule.register({
      maxFiles: 5,
      maxFileSize: 100 * 1024 * 1024,
    })
  ]
})
export class FilesModule {}

TransmitModule can also be registered asynchronously like so:

import { ConfigModule, ConfigService } from "@nestjs/config";
import { Module } from "@nestjs/core";
import { TransmitModule } from "@quicksend/nestjs-transmit";

@Module({
  imports: [
    TransmitModule.registerAsync({
      imports: [ConfigModule],
      inject: [ConfigService],
      useFactory: (config: ConfigService) => ({
        maxFiles: config.get("MAX_FILES"),
        maxFileSize: config.get('MAX_FILE_SIZE'),
      })
    })
  ]
})
export class FilesModule {}

TransmitInterceptor

Once TransmitModule is registered, you can now use TransmitInterceptor in your controller to handle file uploads.

You can use the Fields and Files decorator to retrieve the fields and files that were received.

import { Controller, Post, UseInterceptors } from "@nestjs/common";

import { Field, File, ParseAsyncResults } from "@quicksend/transmit";

import { Fields, Files, TransmitInterceptor } from "@quicksend/nestjs-transmit";

@Controller()
export class FilesController {
  @Post("upload")
  @UseInterceptors(TransmitInterceptor())
  upload(@Fields() fields: Field[], @Files() files: File[]): ParseAsyncResults {
    return {
      fields,
      files
    };
  }
}

You can also pass in TransmitOptions when using TransmitInterceptor. This will allow you to override certain options for a specific endpoint or endpoints.

import { Controller, Post, UseInterceptors } from "@nestjs/common";

import { Field, File, ParseAsyncResults } from "@quicksend/transmit";

import { Fields, Files, TransmitInterceptor } from "@quicksend/nestjs-transmit";

@Controller()
export class FilesController {
  @Post("upload")
  @UseInterceptors(
    TransmitInterceptor({
      maxFiles: 2,
      maxFileSize: 25 * 1024 * 1024,
    })
  )
  upload(@Fields() fields: Field[], @Files() files: File[]): ParseAsyncResults {
    return {
      fields,
      files
    };
  }
}

Tests

Run tests using the following commands:

$ npm run test
$ npm run test:watch