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Upgrade To v2

This guide covers upgrading from the latest released v1 Java SDK to v2.

Highlights

  • Sending email is available through Lettermint.email(token).
  • The full Lettermint API is available through Lettermint.api(token).
  • Sending tokens use x-lettermint-token; full API tokens use Authorization: Bearer.
  • ping() returns the raw trimmed pong response.
  • API request and response model classes are generated from the OpenAPI specs.

Sending

String pong = Lettermint.email("sending-token").ping();

Existing new Lettermint("token").email() sending usage still works.

Full API

ApiClient api = Lettermint.api("api-token");
DomainIndexResponse domains = api.domains().list();

Batch Sending

SendMailRequest payload = new SendMailRequest();
payload.fromValue = "sender@example.com";
payload.to = Collections.singletonList("user@example.com");
payload.subject = "Hello";
payload.text = "Hi";

List<SendMailResponse> response = Lettermint.email(token).sendBatch(Collections.singletonList(payload));