Resend

Send through Resend with its native SDK or direct HTTP API.

Native SDK

pnpm add @postbote/core @postbote/adapter-resend

import { resend } from "@postbote/adapter-resend";

const adapter = resend({ apiKey: process.env.RESEND_API_KEY! });

Pass client to inject an existing Resend instance for custom setup or testing.

HTTP adapter

pnpm add @postbote/core @postbote/adapter-resend-http

import { resendHttp } from "@postbote/adapter-resend-http";

const adapter = resendHttp({
  apiKey: process.env.RESEND_API_KEY!,
  timeoutMs: 30_000,
});

The HTTP adapter accepts baseUrl and a custom fetch implementation. Use it for fetch-compatible edge runtimes or when you do not want the Resend SDK in your dependency tree.

Resend maps 401 to AUTH, 422 to INVALID_MESSAGE, 429 to RATE_LIMITED, and 5xx or network failures to PROVIDER_UNAVAILABLE.