package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "net/http"
)

type Email struct {
    From        Contact   `json:"from"`
    Recipients  []Contact `json:"recipients"`
    Subject     string    `json:"subject"`
    TextContent string    `json:"text_content"`
    HTMLContent string    `json:"html_content"`
}

type Contact struct {
    Name  string `json:"name"`
    Email string `json:"email"`
}

func main() {
    email := Email{
        From: Contact{
            Name:  "My App",
            Email: "[email protected]",
        },
        Recipients: []Contact{
            {
                Name:  "John Doe",
                Email: "[email protected]",
            },
        },
        Subject:     "Welcome to My App!",
        TextContent: "Thanks for signing up. We're excited to have you!",
        HTMLContent: "<h1>Welcome!</h1><p>Thanks for signing up. We're <strong>excited</strong> to have you!</p>",
    }

    jsonData, _ := json.Marshal(email)

    req, _ := http.NewRequest("POST", "https://api.ahasend.com/v2/accounts/{account_id}/messages", bytes.NewBuffer(jsonData))
    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("Authorization", "Bearer YOUR_API_KEY")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Error:", err)
        return
    }
    defer resp.Body.Close()

    fmt.Println("Response Status:", resp.Status)
}

package main

import (
    "gopkg.in/gomail.v2"
    "log"
)

func main() {
    m := gomail.NewMessage()
    m.SetHeader("From", "[email protected]")
    m.SetHeader("To", "[email protected]")
    m.SetHeader("Subject", "Welcome to My App!")
    m.SetBody("text/plain", "Thanks for signing up. We're excited to have you!")
    m.AddAlternative("text/html", "<h1>Welcome!</h1><p>Thanks for signing up. We're <strong>excited</strong> to have you!</p>")

    d := gomail.NewDialer("send.ahasend.com", 587, "YOUR_SMTP_USERNAME", "YOUR_SMTP_PASSWORD")

    if err := d.DialAndSend(m); err != nil {
        log.Fatal(err)
    }

    log.Println("Email sent successfully!")
}