sendgrid html text,go - Send HTML content via SendGrid v3 - Stack Overflow

I was having the same problem, same escapes special characters, what solved was to use the official client to go and its helpers.

Sample code:

from := mail.NewEmail("from", "from@mail.com")

to := mail.NewEmail("to", "to@mail.com")

content := mail.NewContent("text/html", contentHtml)

email := mail.NewV3MailInit(from, "Sample about sendgrid client", to, content)

personalization := mail.NewPersonalization()

personalization.AddTos(to)

email.AddPersonalizations(personalization)

client := sendgrid.NewSendClient(os.Getenv("SENDGRID_API_KEY"))

response, err = client.Send(email)

if err != nil {

return fmt.Errorf("Cannot send the email: %v", err)

}

if response.StatusCode != 202 {

return fmt.Errorf("Cannot send the email: %s", response.Body)

}