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

Introduction

Hey there, fellow Go enthusiast! Ready to dive into the world of Landingi API integration? You're in for a treat. We'll be building a sleek, efficient integration that'll have you manipulating landing pages and snagging leads like a pro. Let's get cracking!

Prerequisites

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

• Go installed (I know, obvious, right?)
• Landingi API credentials (if you don't have 'em, go grab 'em!)

Setting up the project

First things first, let's get our project structure sorted:

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

Now, let's grab the HTTP client we'll be using:

go get -u github.com/go-resty/resty/v2

Authentication

Landingi uses API key authentication. Let's set that up:

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

client := resty.New()
client.SetHeader("Authorization", "API-Key YOUR_API_KEY_HERE")

Making API requests

Now that we're authenticated, let's create a function to make our API calls:

func makeRequest(method, endpoint string, body interface{}) (*resty.Response, error) {
    return client.R().
        SetBody(body).
        Execute(method, "https://api.landingi.com/v1/"+endpoint)
}

Implementing key Landingi API endpoints

Let's implement some crucial endpoints:

// Fetch landing pages
func getLandingPages() ([]LandingPage, error) {
    resp, err := makeRequest("GET", "landing_pages", nil)
    // Parse response and return landing pages
}

// Create a new landing page
func createLandingPage(name string) (LandingPage, error) {
    resp, err := makeRequest("POST", "landing_pages", map[string]string{"name": name})
    // Parse response and return new landing page
}

// Update landing page content
func updateLandingPage(id, content string) error {
    _, err := makeRequest("PUT", "landing_pages/"+id, map[string]string{"content": content})
    return err
}

// Retrieve leads
func getLeads() ([]Lead, error) {
    resp, err := makeRequest("GET", "leads", nil)
    // Parse response and return leads
}

Error handling and response parsing

Don't forget to handle those pesky errors and parse responses:

if err != nil {
    return fmt.Errorf("API request failed: %w", err)
}

var result SomeStruct
if err := json.Unmarshal(resp.Body(), &result); err != nil {
    return fmt.Errorf("failed to parse response: %w", err)
}

Building a simple CLI tool

Let's wrap this up in a neat CLI package:

package main

import (
    "fmt"
    "os"

    "github.com/spf13/cobra"
)

func main() {
    var rootCmd = &cobra.Command{Use: "landingi"}
    rootCmd.AddCommand(getLandingPagesCmd(), createLandingPageCmd(), // ... other commands)
    if err := rootCmd.Execute(); err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
}

Testing the integration

Don't forget to test! Here's a quick example:

func TestGetLandingPages(t *testing.T) {
    pages, err := getLandingPages()
    if err != nil {
        t.Fatalf("Failed to get landing pages: %v", err)
    }
    if len(pages) == 0 {
        t.Error("Expected at least one landing page, got none")
    }
}

Best practices and optimization

Remember to implement rate limiting and caching to keep your integration smooth and efficient. A simple time-based rate limiter can work wonders:

type RateLimiter struct {
    rate  time.Duration
    last  time.Time
    mutex sync.Mutex
}

func (r *RateLimiter) Wait() {
    r.mutex.Lock()
    defer r.mutex.Unlock()
    now := time.Now()
    if diff := r.rate - now.Sub(r.last); diff > 0 {
        time.Sleep(diff)
    }
    r.last = now
}

Conclusion

And there you have it! You've just built a robust Landingi API integration in Go. From authentication to error handling, you're now equipped to create, update, and manage landing pages like a boss. Remember, this is just the beginning – feel free to expand on this foundation and add more features to suit your needs. Happy coding, and may your conversion rates always be high!