Step by Step Guide to Building a Mautic API Integration in Go

Aug 18, 2024 • 6 minute read

Introduction

Hey there, fellow developer! Ready to dive into the world of Mautic API integration with Go? Awesome! Mautic is a powerful open-source marketing automation platform, and its API opens up a whole new realm of possibilities. In this guide, we'll walk through creating a robust integration that'll have you managing contacts, campaigns, and more in no time.

Prerequisites

Before we jump in, make sure you've got:

Go installed (you're a Go dev, right?)
A Mautic instance up and running
API credentials (OAuth2 client ID and secret)

Got all that? Great! Let's get coding.

Setting up the Go project

First things first, let's set up our project:

mkdir mautic-go-integration
cd mautic-go-integration
go mod init github.com/yourusername/mautic-go-integration

We'll need a few dependencies, so let's grab those:

go get golang.org/x/oauth2
go get github.com/go-resty/resty/v2

Authentication

Alright, time to tackle OAuth2. Here's a quick implementation:

import (
    "golang.org/x/oauth2"
)

func getOAuthConfig() *oauth2.Config {
    return &oauth2.Config{
        ClientID:     "your-client-id",
        ClientSecret: "your-client-secret",
        Endpoint: oauth2.Endpoint{
            AuthURL:  "https://your-mautic-instance/oauth/v2/authorize",
            TokenURL: "https://your-mautic-instance/oauth/v2/token",
        },
        RedirectURL: "http://localhost:8080/callback",
        Scopes:      []string{"api"},
    }
}

Remember to handle token storage and refreshing - your future self will thank you!

Making API requests

Let's create a basic API client using resty:

import "github.com/go-resty/resty/v2"

func newMauticClient(token *oauth2.Token) *resty.Client {
    client := resty.New()
    client.SetAuthToken(token.AccessToken)
    client.SetBaseURL("https://your-mautic-instance/api")
    return client
}

Pro tip: Implement rate limiting and retries to keep your integration smooth and reliable.

Implementing core Mautic API functionalities

Now for the fun part! Let's implement some key Mautic features:

Contacts management

func createContact(client *resty.Client, contact map[string]interface{}) (int, error) {
    var response map[string]interface{}
    _, err := client.R().
        SetBody(map[string]interface{}{"contact": contact}).
        SetResult(&response).
        Post("/contacts/new")
    
    if err != nil {
        return 0, err
    }
    
    return int(response["contact"].(map[string]interface{})["id"].(float64)), nil
}

Implement similar functions for reading, updating, and deleting contacts. You've got this!

Campaigns interaction

func addContactToCampaign(client *resty.Client, contactID, campaignID int) error {
    _, err := client.R().Post(fmt.Sprintf("/campaigns/%d/contact/%d/add", campaignID, contactID))
    return err
}

Error handling and logging

Don't forget to implement robust error handling and logging. It'll save you hours of debugging later:

import "log"

func logError(err error) {
    if err != nil {
        log.Printf("Error: %v", err)
    }
}

Testing the integration

Writing tests is crucial. Here's a simple example to get you started:

func TestCreateContact(t *testing.T) {
    client := newMauticClient(getTestToken())
    contact := map[string]interface{}{
        "firstname": "John",
        "lastname":  "Doe",
        "email":     "[email protected]",
    }
    id, err := createContact(client, contact)
    if err != nil {
        t.Fatalf("Failed to create contact: %v", err)
    }
    if id == 0 {
        t.Fatal("Expected non-zero contact ID")
    }
}

Best practices and optimization

To take your integration to the next level:

Implement caching for frequently accessed data
Use goroutines for concurrent API requests (but be mindful of rate limits!)

Conclusion

And there you have it! You've just built a solid Mautic API integration in Go. Pretty cool, right? Remember, this is just the beginning. There's always room to expand and improve your integration.

Keep exploring the Mautic API, and don't be afraid to push the boundaries. Happy coding!

Resources

Now go forth and automate all the things!