Step by Step Guide to Building a Facebook Custom Audiences API Integration in Go

Aug 2, 2024 • 6 minute read

Hey there, fellow Go developer! Ready to dive into the world of Facebook Custom Audiences? Buckle up, because we're about to embark on a journey that'll have you integrating with Facebook's Marketing API like a pro. We'll be using the awesome justwatch/facebook-marketing-api-golang-sdk package, so let's get started!

Prerequisites

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

Go installed on your machine (I know you do, but just checking!)
A Facebook Developer account and app set up
An access token with the right permissions

Got all that? Great! Let's roll.

Setting Up the Project

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

mkdir fb-custom-audiences
cd fb-custom-audiences
go mod init github.com/yourusername/fb-custom-audiences
go get github.com/justwatch/facebook-marketing-api-golang-sdk

Configuring the SDK

Now, let's create our main.go file and import the necessary packages:

package main

import (
    "fmt"
    "log"

    fb "github.com/justwatch/facebook-marketing-api-golang-sdk"
)

func main() {
    client := fb.NewClient("YOUR_ACCESS_TOKEN")
    // We'll be adding more code here soon!
}

Creating a Custom Audience

Time to create our first Custom Audience! Here's how:

audience, err := client.CreateCustomAudience(fb.CustomAudience{
    Name: "My Awesome Audience",
    Subtype: "CUSTOM",
    Description: "An audience of our coolest customers",
})
if err != nil {
    log.Fatalf("Failed to create audience: %v", err)
}
fmt.Printf("Created audience with ID: %s\n", audience.ID)

Adding Users to Custom Audience

Now that we have an audience, let's add some users:

users := []fb.UserData{
    {Email: "[email protected]"},
    {Email: "[email protected]"},
}

result, err := client.AddUsersToCustomAudience(audience.ID, users)
if err != nil {
    log.Fatalf("Failed to add users: %v", err)
}
fmt.Printf("Added %d users successfully\n", result.NumSuccess)

Retrieving Custom Audience Information

Curious about your audience? Let's fetch its details:

audienceInfo, err := client.GetCustomAudience(audience.ID)
if err != nil {
    log.Fatalf("Failed to get audience info: %v", err)
}
fmt.Printf("Audience Name: %s, Size: %d\n", audienceInfo.Name, audienceInfo.ApproximateCount)

Updating Custom Audience

Need to make some changes? No problem:

updatedAudience, err := client.UpdateCustomAudience(audience.ID, fb.CustomAudience{
    Name: "My Even Awesomer Audience",
    Description: "An updated audience of our coolest customers",
})
if err != nil {
    log.Fatalf("Failed to update audience: %v", err)
}
fmt.Printf("Updated audience name: %s\n", updatedAudience.Name)

Deleting Custom Audience

All good things must come to an end. Here's how to delete your audience:

err := client.DeleteCustomAudience(audience.ID)
if err != nil {
    log.Fatalf("Failed to delete audience: %v", err)
}
fmt.Println("Audience deleted successfully")

Error Handling and Best Practices

When working with the Facebook API, keep these tips in mind:

Always check for errors and handle them gracefully
Be mindful of rate limits - implement exponential backoff if needed
Keep user data secure and respect privacy - only use hashed data when possible

Conclusion

And there you have it! You've just built a Facebook Custom Audiences API integration in Go. Pretty cool, right? You can now create, manage, and delete custom audiences like a champ.

Remember, this is just the tip of the iceberg. There's so much more you can do with the Facebook Marketing API, so don't be afraid to explore and experiment.

Resources

For more information, check out:

Now go forth and conquer those custom audiences! Happy coding!