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The default branch name for this repository has been changed to main as of 07/27/2020.

This library allows you to quickly and easily use the Twilio SendGrid Web API v3 via Go.

Version 3.X.X of this library provides full support for all Twilio SendGrid Web API v3 endpoints, including the new v3 /mail/send.

This library represents the beginning of a new path for Twilio SendGrid. We want this library to be community driven and Twilio SendGrid led. We need your help to realize this goal. To help make sure we are building the right things in the right order, we ask that you create issues and pull requests or simply upvote or comment on existing issues or pull requests.

Please browse the rest of this README for further detail.

We appreciate your continued support, thank you!

• Installation
• Quick Start
• Processing Inbound Email
• Usage
• Use Cases
• Announcements
• Roadmap
• How to Contribute
• Troubleshooting
• About
• License

• Go version 1.7
• The Twilio SendGrid service, starting at the free level, to send up to 40,000 emails for the first 30 days, then send 100 emails/day free forever or check out our pricing.

Update the development environment with your SENDGRID_API_KEY, for example:

echo "export SENDGRID_API_KEY='YOUR_API_KEY'" > sendgrid.env
echo "sendgrid.env" >> .gitignore
source ./sendgrid.env

go get github.com/sendgrid/sendgrid-go

• rest

cp .env_sample .env

Update the development environment with your SENDGRID_API_KEY, for example:

echo "export SENDGRID_API_KEY='YOUR_API_KEY'" > sendgrid.env
echo "sendgrid.env" >> .gitignore
source ./sendgrid.env

The following is the minimum needed code to send an email with the /mail/send Helper (here is a full example):

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)
	}
}

The NewEmail constructor creates a personalization object for you. Here is an example of how to add to it.

The following is the minimum needed code to send an email without the /mail/send Helper (here is a full example):

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)
	}
}

Please see our helper for utilizing our Inbound Parse webhook.

• Twilio SendGrid Docs
• Library Usage Docs
• Example Code
• How-to: Migration from v2 to v3
• v3 Web API Mail Send Helper

Examples of common API use cases, such as how to send an email with a transactional template.

Please see our announcement regarding breaking changes. Your support is appreciated!

All updates to this library are documented in our CHANGELOG and releases. You may also subscribe to email release notifications for releases and breaking changes.

If you are interested in the future direction of this project, please take a look at our open issues and pull requests. We would love to hear your feedback.

We encourage contribution to our libraries (you might even score some nifty swag), please see our CONTRIBUTING guide for details.

Quick links:

• Feature Request
• Bug Reports
• Improvements to the Codebase
• Review Pull Requests

Please see our troubleshooting guide for common library issues.

sendgrid-go is maintained and funded by Twilio SendGrid, Inc. The names and logos for sendgrid-go are trademarks of Twilio SendGrid, Inc.

If you need help installing or using the library, please check the Twilio SendGrid Support Help Center.

If you've instead found a bug in the library or would like new features added, go ahead and open issues or pull requests against this repo!

The MIT License (MIT)