resend

.NET client for resend, an email API, written in C#.

Functionality

The ResendClient support the following objects (and methods):

• Email (Send, Batch, Retrieve)
• Domain (List, Add, Retrieve, Update, Verify, Delete)
• API key (List, Create, Delete)
• Audience (List, Add, Retrieve, Delete)
• Contact (List, Add, Retrieve, Update, Delete)

Installing via NuGet

Package is published in the NuGet gallery.

From the command-line:

> dotnet add package Resend

From within Visual Studio using Package Manager Console:

PM> Install-Package Resend

Getting started

In the startup of your application, configure the DI container as follows:

using Resend;

builder.Services.AddOptions();
builder.Services.AddHttpClient<ResendClient>();
builder.Services.Configure<ResendClientOptions>( o =>
{
    o.ApiToken = Environment.GetEnvironmentVariable( "RESEND_APITOKEN" )!;
} );
builder.Services.AddTransient<IResend, ResendClient>()

Send an email using the injected IResend instance:

using Resend;

public class FeatureImplementation
{
    private readonly IResend _resend;


    public FeatureImplementation( IResend resend )
    {
        _resend = resend;
    }


    public Task Execute()
    {
        var message = new EmailMessage();
        message.From = "onboarding@resend.dev";
        message.To.Add( "myapp@example.com" );
        message.Subject = "Hello!";
        message.HtmlBody = "<div><strong>Greetings<strong> 👋🏻 from .NET</div>";

        await _resend.EmailSendAsync( message );
    }
}

resend command-line tool

In addition to the .NET library, this repository also releases a cross platform command line interface program to invoke the API. This program is available as a .NET tool.

Command-line tool for Resend API

Usage: resend [command] [options]

Options:
  --version     Show version information.
  -?|-h|--help  Show help information.

Commands:
  apikey        API key management
  audience      Audience management
  contact       Contact management
  domain        Email (sender) domain management
  email         Send emails
  webhook       Webhook management

Run 'resend [command] -?|-h|--help' for more information about a command.

Each command has sub-commands: you can enumerate the sub-commands with the --help flag, eg resend email --help.

Roadmap

• Check if there is API for webhooks (client side, as well as server side)
• Write documentation in the README.md
• Return ApiResponse (rather than T), for folks that prefer responses rather than exceptions
• Complete the API / object XML documentation
• Target multiple frameworks (.NET Standard, .NET 6) -- rather than .NET 7