package main

import (
	"encoding/json"
	"fmt"
	"github.com/sendgrid/sendgrid-go/v4"
	MailV3 "github.com/sendgrid/sendgrid-go/v4/rest/api/v3/mail"
	"net/http"
	"os"
)

func main() {
	client := sendgrid.NewRestClientWithParams(sendgrid.ClientParams{
		ApiKey: os.Getenv("SENDGRID_API_KEY"),
	})
	name := "John Doe"
	subject := "Sending with Twilio SendGrid is Fun"
	mailTo := &MailV3.MailTo{Email: "test@example.com"}
	to := []MailV3.MailTo{*mailTo}
	sendMailRequest := MailV3.SendMailRequest{
		From:             MailV3.MailFrom{Name: &name, Email: VERIFIED_EMAIL},
		ReplyTo:          mailTo,
		Subject:          &subject,
		Personalizations: []MailV3.SendMailRequestPersonalizationsInner{{To: to}},
		Content:          &[]MailV3.SendMailRequestContentInner{{Type: "text/plain", Value: "Abc"}},
	}
	sendMailParam := &MailV3.SendMailParam{SendMailRequest: &sendMailRequest}
	resp, err := client.MailV3.SendMail(sendMailParam)
	if err != nil {
		fmt.Println("Error sending mail: " + err.Error())
	} else {
		response, _ := json.Marshal(resp)
		var ps http.Response
		json.Unmarshal(response, &ps)
		fmt.Println(ps.StatusCode)
		fmt.Println(ps.Body)
		fmt.Println(ps.Header)
	}
}

package main

import (
	"fmt"
	"log"
	"os"

	"github.com/sendgrid/sendgrid-go"
	"github.com/sendgrid/sendgrid-go/helpers/mail"
)

func main() {
	from := mail.NewEmail("Example User", "test@example.com")
	subject := "Sending with Twilio SendGrid is Fun"
	to := mail.NewEmail("Example User", "test@example.com")
	plainTextContent := "and easy to do anywhere, even with Go"
	htmlContent := "<strong>and easy to do anywhere, even with Go</strong>"
	message := mail.NewSingleEmail(from, subject, to, plainTextContent, htmlContent)
	client := sendgrid.NewSendClient(os.Getenv("SENDGRID_API_KEY"))
	response, err := client.Send(message)
	if err != nil {
		log.Println(err)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}

package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"log"
	"os"
)

func main() {
	request := sendgrid.GetRequest(os.Getenv("SENDGRID_API_KEY"), "/v3/mail/send", "https://api.sendgrid.com")
	request.Method = "POST"
	request.Body = []byte(` {
	"personalizations": [
		{
			"to": [
				{
					"email": "test@example.com"
				}
			],
			"subject": "Sending with Twilio SendGrid is Fun"
		}
	],
	"from": {
		"email": "test@example.com"
	},
	"content": [
		{
			"type": "text/plain",
			"value": "and easy to do anywhere, even with Go"
		}
	]
}`)
	response, err := sendgrid.API(request)
	if err != nil {
		log.Println(err)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}

package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"log"
	"os"
)

func main() {
	request := sendgrid.GetRequest(os.Getenv("SENDGRID_API_KEY"), "/v3/api_keys", "https://api.sendgrid.com")
	request.Method = "GET"

	response, err := sendgrid.API(request)
	if err != nil {
		log.Println(err)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}