Mailit

An email kit for golang to be reused across different projects.

Introduction

Mailit is an easy to use mail library to send emails.

Features

Mailit supports:

Plain text emails
Text / HTML template based emails
Attachments
Sending emails to multiple recipients

Requirements

Go 1.5

Documentation

https://pkg.go.dev/github.com/wisdommatt/mailit

We also recommend you use the how to guide on this page because Mailit does basically two things:

Send Plain Text Emails
Send Template Based Emails

How To Use Mailit

Feel free to copy and paste the codes

Step 1: Initialize a mailer variable and pass in SMTP configs.

Note: This is usually done just once

    smtpConf := mailit.SMTPConfig{
        Host:     "domain.com",
        Port:     563,
        Username: "[email protected]",
        Password: "*********",
    }
    mailer := mailit.NewMailer(smtpConf)

Step 2: Send email

Sending plain text email

    textDep := mailit.TextDependencies{
        From:        "[email protected]",
        To:          []string{"[email protected]", "[email protected]", "[email protected]"},
        Subject:     "Welcome to Mailit",
        Body:        "Message Body",
        Attachments: []string{"attachments/1.txt", "attachments/2.txt"},
    }
    err := mailer.SendText(textDep)

Sending HTML template email

    tempDep := mailit.TemplateDependencies{
        From:        "[email protected]",
        To:          []string{"[email protected]", "[email protected]", "[email protected]"},
        Subject:     "Welcome to Mailit",
        ContentType: "text/html",
        Template: "templates/welcome.html",
        TemplateData: "Any data",
        Attachments: []string{"attachments/1.txt", "attachments/2.txt"},
    }
    err := mailer.SendTemplate(tempDep)

Sending Text template email

    tempDep := mailit.TemplateDependencies{
        From:        "[email protected]",
        To:          []string{"[email protected]", "[email protected]", "[email protected]"},
        Subject:     "Welcome to Mailit",
        ContentType: "text/plain",
        Template: "templates/sample.txt",
        TemplateData: struct{
            Name, Email string
        }{
            Name: "Wisdom Matt",
            Email: "[email protected]",
        },
        Attachments: []string{"attachments/1.txt", "attachments/2.txt"},
    }
    err := mailer.SendTemplate(tempDep)

NOTE: You will access the template data the way it is access usually in Go templates e.g {{ .Name }} or {{ .Email }}

Dependencies

https://github.com/go-gomail/gomail

Testing

This package uses manual testing because the gomail package which it depends on used core types instead of interfaces which in turn makes it difficult to test, a thorough test is done before any changed is made on the project so there is nothing to be scared of.