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☁️ Azure Storage module for Nest framework (node.js)
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README.md

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Description

Azure Storage module for Nest framework (node.js)

Before Installation

  1. Create a Storage account and resource (read more)
  2. In the Azure Portal, go to Dashboard > Storage > your-storage-account.
  3. Note down the "AccountName", "AccountKey" obtained at Access keys and "AccountSAS" from Shared access signature under Settings tab.

(Recommended) Installation and automatic configuration

Using the Nest CLI:

$ nest add @nestjs/azure-storage

Additional options

You can pass additional flags to customize the post-install schematic. For example, if your base application directory is different than src, use --rootDir flag:

$ nest add @nestjs/azure-storage --rootDir app

When requested, provide the storageAccountName and storageAccountSAS (see below).

Other available flags:

  • rootDir - Application root directory, default: src
  • rootModuleFileName - the name of the root module file, default: app.module
  • rootModuleClassName - the name of the root module class, default: AppModule
  • mainFileName - Application main file, default: main
  • skipInstall - skip installing dependencies, default: false
  • storageAccountName (required) - The Azure Storage account name (see: http://bit.ly/azure-storage-account)
  • storageAccountSAS (required) - The Azure Storage SAS Key (see: http://bit.ly/azure-storage-sas-key).

(Option 2) Manual configuration

  1. Install the package using NPM:
$ npm i -S @nestjs/azure-storage
  1. Create or update your excisting .env file with the following content:
AZURE_STORAGE_SAS_KEY=
AZURE_STORAGE_ACCOUNT=

The SAS has the following format: ?sv=2018-03-28&ss=bfqt&srt=sco&sp=rwdlacup&se=2019-12-31T22:54:03Z&st=2019-07-11T13:54:03Z&spr=https,http&sig=WmAl%236251oj11biPK2xcpLs254152H9s0%3D

  1. IMPORTANT: Make sure to add your .env file to your .gitignore! The .env file MUST NOT be versionned on Git.

  2. Make sure to call the following call to your main file:

if (process.env.NODE_ENV !== 'production') require('dotenv').config();

This line must be added before any other imports!

  1. Import the AzureStorageModule with the following configuration:
import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { AzureStorageModule } from '@nestjs/azure-storage';

@Module({
  controllers: [AppController],
  providers: [AppService],
  imports: [
    AzureStorageModule.withConfig({
      sasKey: process.env['AZURE_STORAGE_SAS_KEY'],
      accountName: process.env['AZURE_STORAGE_ACCOUNT'],
      containerName: 'nest-demo-container',
    }),
  ],
})
export class AppModule {}

You may provide a default containerName name for the whole module, this will apply to all controllers withing this module. You can also provide (override) the containerName in the controller, for each route.

Story examples

Store a file using the default container name

import {
  Controller,
  Logger,
  Post,
  UploadedFile,
  UseInterceptors,
} from '@nestjs/common';
import { FileInterceptor } from '@nestjs/platform-express';
import {
  AzureStorageFileInterceptor,
  UploadedFileMetadata,
} from '@nestjs/azure-storage';

@Controller()
export class AppController {
  
  @Post('azure/upload')
  @UseInterceptors(
    AzureStorageFileInterceptor('file'),
  )
  UploadedFilesUsingInterceptor(
    @UploadedFile()
    file: UploadedFileMetadata,
  ) {
    Logger.log(`Storage URL: ${file.storageUrl}`, 'AppController');
  }
}

Store a file using a specific container name

import {
  Controller,
  Logger,
  Post,
  UploadedFile,
  UseInterceptors,
} from '@nestjs/common';
import { FileInterceptor } from '@nestjs/platform-express';
import {
  AzureStorageFileInterceptor,
  UploadedFileMetadata,
} from '@nestjs/azure-storage';

@Controller()
export class AppController {
  
  @Post('azure/upload')
  @UseInterceptors(
    AzureStorageFileInterceptor('file', null, {
      containerName: 'nest-demo-container-interceptor',
    }),
  )
  UploadedFilesUsingInterceptor(
    @UploadedFile()
    file: UploadedFileMetadata,
  ) {
    Logger.log(`Storage URL: ${file.storageUrl}`, 'AppController');
  }
}

Store a file using a custom file name

import {
  Controller,
  Logger,
  Post,
  UploadedFile,
  UseInterceptors,
} from '@nestjs/common';
import { FileInterceptor } from '@nestjs/platform-express';
import {
  AzureStorageFileInterceptor,
  AzureStorageService,
  UploadedFileMetadata,
} from '@nestjs/azure-storage';

@Controller()
export class AppController {
  constructor(private readonly azureStorage: AzureStorageService) {}
  
  @Post('azure/upload')
  @UseInterceptors(FileInterceptor('file'))
  async UploadedFilesUsingService(
    @UploadedFile()
    file: UploadedFileMetadata,
  ) {
    file = {
      ...file,
      originalname: 'foo-bar.txt',
    };
    const storageUrl = await this.azureStorage.upload(file);
    Logger.log(`Storage URL: ${storageUrl}`, 'AppController');
  }
}

Support

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License

Nest is MIT licensed.

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