Using Templates

import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

await resend.emails.send({
  from: 'Acme <onboarding@resend.dev>',
  to: 'delivered@resend.dev',
  template: {
    id: 'order-confirmation',
    variables: {
      PRODUCT: 'Vintage Macintosh',
      PRICE: 499,
    },
  },
});

$resend = Resend::client('re_xxxxxxxxx');

$resend->emails->send([
  'from' => 'Acme <onboarding@resend.dev>',
  'to' => ['delivered@resend.dev'],
  'subject' => 'hello world',
  'template'=> [
    'id' => 'f3b9756c-f4f4-44da-bc00-9f7903c8a83f',
    'variables' => [
      'PRODUCT' => 'Vintage Macintosh',
      'PRICE' => 499,
    ]
  ]
]);

import resend

resend.api_key = "re_xxxxxxxxx"

resend.Emails.send({
  "from": "Acme <onboarding@resend.dev>",
  "to": "delivered@resend.dev",
  "template": {
    "id": "order-confirmation",
    "variables": {
      "PRODUCT": "Vintage Macintosh",
      "PRICE": 499
    }
  }
})

require "resend"

Resend.api_key = "re_xxxxxxxxx"

Resend::Emails.send({
  from: "Acme <onboarding@resend.dev>",
  to: "delivered@resend.dev",
  template: {
    id: "order-confirmation",
    variables: {
      PRODUCT: "Vintage Macintosh",
      PRICE: 499
    }
  }
})

import "github.com/resend/resend-go/v3"

client := resend.NewClient("re_xxxxxxxxx")

params := &resend.SendEmailRequest{
  From: "Acme <onboarding@resend.dev>",
  To: []string{"delivered@resend.dev"},
  Template: &resend.EmailTemplate{
    Id: "order-confirmation",
    Variables: map[string]interface{}{
      "PRODUCT": "Vintage Macintosh",
      "PRICE": 499,
    },
  },
}

email, err := client.Emails.Send(params)

use resend_rs::{types::SendEmailOptions, Resend, Result};

#[tokio::main]
async fn main() -> Result<()> {
  let resend = Resend::new("re_xxxxxxxxx");

  let variables = serde_json::json!({
    "PRODUCT": "Vintage Macintosh",
    "PRICE": 499
  });

  let opts = SendEmailOptions::new("Acme <onboarding@resend.dev>", vec!["delivered@resend.dev"])
    .with_template("order-confirmation", variables);

  let _email = resend.emails.send(opts).await?;

  Ok(())
}

Resend resend = new Resend("re_xxxxxxxxx");

Map<String, Object> variables = new HashMap<>();
variables.put("PRODUCT", "Vintage Macintosh");
variables.put("PRICE", 499);

SendEmailOptions params = SendEmailOptions.builder()
  .from("Acme <onboarding@resend.dev>")
  .to(Arrays.asList("customer@email.com"))
  .template(Template.builder()
    .id("order-confirmation")
    .variables(variables)
    .build())
  .build();

SendEmailResponseSuccess data = resend.emails().send(params);

using Resend;

IResend resend = ResendClient.Create("re_xxxxxxxxx");

var variables = new Dictionary<string, object>
{
  { "PRODUCT", "Vintage Macintosh" },
  { "PRICE", 499 }
};

var resp = await resend.EmailSendAsync(
  new EmailMessage()
  {
    From = "Acme <onboarding@resend.dev>",
    To = new[] { "delivered@resend.dev" },
    Template = new EmailMessageTemplate()
    {
      TemplateId = new Guid( "b6d24b8e-af0b-4c3c-be0c-359bbd97381e" ),
      Variables = variables
    }
  }
);

Console.WriteLine($"Email Id={resp.Content}");

curl -X POST 'https://api.resend.com/emails' \
  -H 'Authorization: Bearer re_xxxxxxxxx' \
  -H 'Content-Type: application/json' \
  -d $'{
    "from": "Acme <onboarding@resend.dev>",
    "to": "delivered@resend.dev",
    "template": {
      "id": "order-confirmation",
      "variables": {
        "PRODUCT": "Vintage Macintosh",
        "PRICE": 499
      }
    }
}'