(Swift 3,4,5...) SendGrid Hello World -- Send Simple Email to Single Recipient

See more SendGrid Examples

Sends an email to a single recipient using SendGrid.

For more information, see https://sendgrid.com/docs/for-developers/sending-email/curl-examples/

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

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

    let http = CkoHttp()!
    var success: Bool

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

    // Adds the "Authorization: Bearer YOUR_API_KEY" header.
    http.authToken = "YOUR_API_KEY"
    http.setRequestHeader("Content-Type", value: "application/json")

    var resp: CkoHttpResponse? = http.postJson3("https://api.sendgrid.com/v3/mail/send", contentType: "application/json", json: json)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
    }
    else {
        print("response status code: \(resp!.statusCode.intValue)")
        // 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.)
        print("\(resp!.bodyStr!)")
        resp = nil
    }


}