C#

SendGrid Hello World -- Send Simple Email to Single Recipient

See more SendGrid Examples

Sends an email to a single recipient using SendGrid. C#

bool success = false;

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

Chilkat.Http http = new Chilkat.Http();

//  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!"
//      }
//    ]
//  }

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

//  Adds the "Authorization: Bearer YOUR_API_KEY" header.
http.AuthToken = "YOUR_API_KEY";

Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpJson("POST","https://api.sendgrid.com/v3/mail/send",json,"application/json",resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
}
else {
    Debug.WriteLine("response status code: " + Convert.ToString(resp.StatusCode));
    //  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.)
    Debug.WriteLine(resp.BodyStr);
}