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

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

This library represents the beginning of a new path for SendGrid. We want this library to be community driven and 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 1.6
• The SendGrid service, starting at the free level

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", "[email protected]")
	subject := "Sending with SendGrid is Fun"
	to := mail.NewEmail("Example User", "[email protected]")
	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": "[email protected]"
				}
			],
			"subject": "Sending with SendGrid is Fun"
		}
	],
	"from": {
		"email": "[email protected]"
	},
	"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.

• 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.

Join an experienced and passionate team that focuses on making an impact. Opportunities abound to grow the product - and grow your career! Check out our Software Engineer- Delivery role

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
• Sign the CLA to Create a Pull Request
• Improvements to the Codebase

Please see our troubleshooting guide for common library issues.

sendgrid-go is guided and supported by the SendGrid Developer Experience Team.

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

The MIT License (MIT)