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

Introduction

Hey there, fellow Go enthusiast! Ready to dive into the world of FareHarbor API integration? You're in for a treat. FareHarbor's API is a powerful tool for managing bookings and availability for tour and activity businesses. In this guide, we'll walk through building a robust integration that'll have you pulling data and creating bookings like a pro.

Prerequisites

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

• Go installed (I know, obvious, right?)
• FareHarbor API credentials (if you don't have these, time to sweet-talk your FareHarbor rep)
• Your favorite Go packages for HTTP requests and JSON handling (we'll be using the standard library, but feel free to jazz it up with your preferred third-party packages)

Setting up the project

Let's get our house in order:

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

Easy peasy. Now we've got a clean slate to work with.

Authentication

FareHarbor uses API key authentication. Let's create a reusable client:

package fareharbor

import (
    "net/http"
)

type Client struct {
    BaseURL    string
    APIKey     string
    HTTPClient *http.Client
}

func NewClient(apiKey string) *Client {
    return &Client{
        BaseURL:    "https://fareharbor.com/api/external/v1/",
        APIKey:     apiKey,
        HTTPClient: &http.Client{},
    }
}

Basic API Requests

Time to fetch some data! Let's grab available items:

func (c *Client) GetAvailableItems() ([]Item, error) {
    req, err := http.NewRequest("GET", c.BaseURL+"items/", nil)
    if err != nil {
        return nil, err
    }
    
    req.Header.Set("X-FareHarbor-API-App", c.APIKey)
    
    resp, err := c.HTTPClient.Do(req)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()
    
    // Parse JSON response here
    // ...
}

Advanced API Interactions

Creating a booking? No sweat:

func (c *Client) CreateBooking(booking Booking) error {
    // Implement POST request to create booking
    // Don't forget error handling and response validation!
}

Implementing Webhook Support

FareHarbor can send you updates. Let's catch 'em:

func handleWebhook(w http.ResponseWriter, r *http.Request) {
    // Parse incoming webhook data
    // Process the update
    // Respond with 200 OK
}

Rate Limiting and Concurrency

Be nice to FareHarbor's servers and use rate limiting:

import "golang.org/x/time/rate"

limiter := rate.NewLimiter(rate.Every(time.Second), 5)

// In your request function:
if err := limiter.Wait(ctx); err != nil {
    return err
}
// Proceed with the request

Testing

Test, test, and test again:

func TestGetAvailableItems(t *testing.T) {
    // Mock API responses
    // Test error cases
    // Validate successful responses
}

Logging and Monitoring

Keep an eye on those API calls:

import "log"

// In your request function:
log.Printf("API Request: %s %s", method, url)
// After the request:
log.Printf("API Response: Status %d, Body: %s", resp.StatusCode, bodyString)

Best Practices and Optimization

• Cache frequently accessed data
• Implement exponential backoff for retries
• Use context for cancellation and timeouts

Conclusion

And there you have it! You've just built a solid FareHarbor API integration in Go. From here, you can expand on this foundation to create a full-fledged booking system or reporting tool. Remember, the key to a great integration is reliability and efficiency, so keep refining and optimizing.

Now go forth and code, you magnificent Go developer! The world of tours and activities awaits your integration prowess. Happy coding!