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Curiosus.EMail.UnisenderGo

NuGet Downloads Coverage

Unisender Go implementation of IEMailSender from Curiosus.EMail. Sends transactional e-mails through the Unisender Go HTTP API, with optional link/read tracking and an unsubscribe URL.

Installation​

dotnet add package Curiosus.EMail.UnisenderGo

Usage​

Options (UnisenderGoEmailOptions, validated on registration):

UnisenderGo:
  ApiKey: <secret>               # required
  Region: Russia                 # default and currently the only region
  EmailFrom: noreply@example.com # required
  FromName: Example              # required
  ReplyTo: support@example.com   # optional
  UnsubscribeUrl: https://example.com/unsubscribe # optional
  TrackLinks: true               # optional
  TrackReads: true               # optional
  SkipUnisenderUnsubscribeFooter: false # optional, works only if enabled for your account
  IgnoreIncorrectExtraParamsType: false
using Curiosus.EMail;
using Curiosus.Email.UnisenderGo;

var unisenderOptions = builder.Configuration.GetSection("UnisenderGo").Get<UnisenderGoEmailOptions>()!;
builder.Services.AddUnisenderGoEmailSender(unisenderOptions); // IUnisenderGoEmailSender and, by default, IEMailSender

// in a service that receives IEMailSender sender
var response = await sender.SendAsync("user@example.com", "Welcome", "<p>Hello!</p>", isBodyHtml: true, ct);

// override settings for one message
await sender.SendAsync("user@example.com", "News", "<p>News</p>", true,
    new UnisenderGoEmailExtraParams(fromName: "Newsletter", trackLinks: false), ct);

HTTP errors are mapped to EmailError: 401 → Auth, 403 → Auth or RateLimit (by Unisender error code), 400 → IncorrectRequestData, 429 → RateLimit, 404 and 5xx → Communication. Note: the namespace is Curiosus.Email.UnisenderGo (while the package id is Curiosus.EMail.UnisenderGo).

HTTP requests go through the HttpClient named UnisenderGoEmailSender.HttpClientName from IHttpClientFactory, which AddUnisenderGoEmailSender registers. Configure it for timeouts, a proxy or resilience handlers:

services.AddHttpClient(UnisenderGoEmailSender.HttpClientName, client => client.Timeout = TimeSpan.FromSeconds(30));

See also​