Rust

SendGrid Hello World -- Send Simple Email to Single Recipient

See more SendGrid Examples

Sends an email to a single recipient using SendGrid. Rust

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

let http = chilkat::Http::new();

// Implements the following CURL command:

// curl --request POST \
//   --url https://api.sendgrid.com/v3/mail/send \
//   --header 'Authorization: Bearer YOUR_API_KEY' \
//   --header 'Content-Type: application/json' \
//   --data '{"personalizations": [{"to": [{"email": "recipient@example.com", "name": "Recipient Name"}]}],"from": {"email": "sendeexampexample@example.com"},"subject": "Hello, World!","content": [{"type": "text/plain", "value": "Heya!"}]}'

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON

// The following JSON is sent in the request body.

// {
//   "personalizations": [
//     {
//       "to": [
//         {
//           "email": "recipient@example.com",
//           "name": "Recipient Name"
//         }
//       ]
//     }
//   ],
//   "from": {
//     "email": "sendeexampexample@example.com"
//   },
//   "subject": "Hello, World!",
//   "content": [
//     {
//       "type": "text/plain",
//       "value": "Heya!"
//     }
//   ]
// }

let json = chilkat::JsonObject::new();
let _ = json.update_string("personalizations[0].to[0].email", "recipient@example.com");
// The "name" is optional.
let _ = json.update_string("personalizations[0].to[0].name", "Recipient Name");
let _ = json.update_string("from.email", "sendeexampexample@example.com");
let _ = json.update_string("subject", "Hello, World!");
let _ = json.update_string("content[0].type", "text/plain");
let _ = json.update_string("content[0].value", "Heya!");

// Adds the "Authorization: Bearer YOUR_API_KEY" header.
http.set_auth_token("YOUR_API_KEY");

let resp = chilkat::HttpResponse::new();
if http.http_json("POST", "https://api.sendgrid.com/v3/mail/send", &json, "application/json", &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

if !http.last_method_success() {
    println!("{}", http.last_error_text());
} else {
    println!("response status code: {}", resp.status_code());
    // Display the response.
    // If successful, the response code is 202 and the response body string is empty.
    // (The response body string may also be empty for error response codes.)
    println!("{}", resp.body_str());
}