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

Introduction

Hey there, fellow Go enthusiast! Ready to dive into the world of WhatConverts API integration? You're in for a treat. We'll be building a sleek, efficient integration that'll have you pulling lead data like a pro in no time. Let's get cracking!

Prerequisites

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

• Go installed (I know, obvious, right?)
• Your WhatConverts API credentials (you can't crash the party without an invite)
• A burning desire to write some awesome Go code (optional, but highly recommended)

Setting up the project

First things first, let's get our project off the ground:

mkdir whatconverts-integration
cd whatconverts-integration
go mod init whatconverts-integration

Now, let's grab the packages we'll need:

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

Authentication

Alright, time to get cozy with the WhatConverts API. We'll use API key authentication:

const (
    baseURL = "https://app.whatconverts.com/api/v1"
    apiKey  = "your_api_key_here"
)

client := resty.New().
    SetBaseURL(baseURL).
    SetHeader("Authorization", "Bearer "+apiKey)

Making API requests

Now that we're all set up, let's start making some requests:

resp, err := client.R().
    SetQueryParam("limit", "10").
    Get("/leads")

if err != nil {
    log.Fatalf("API request failed: %v", err)
}

fmt.Println(resp.String())

Implementing key API endpoints

Let's implement a few crucial endpoints:

// Fetch leads
func fetchLeads(client *resty.Client) ([]Lead, error) {
    var response LeadsResponse
    _, err := client.R().
        SetQueryParam("limit", "100").
        SetResult(&response).
        Get("/leads")
    return response.Leads, err
}

// Create a new lead
func createLead(client *resty.Client, lead Lead) error {
    _, err := client.R().
        SetBody(lead).
        Post("/leads")
    return err
}

// Update lead information
func updateLead(client *resty.Client, leadID string, lead Lead) error {
    _, err := client.R().
        SetBody(lead).
        Put("/leads/" + leadID)
    return err
}

Error handling and response parsing

Let's make sure we're handling errors like pros:

type APIError struct {
    Message string `json:"message"`
}

func handleAPIError(resp *resty.Response) error {
    if resp.IsError() {
        var apiErr APIError
        if err := json.Unmarshal(resp.Body(), &apiErr); err != nil {
            return fmt.Errorf("API error: %s", resp.Status())
        }
        return fmt.Errorf("API error: %s", apiErr.Message)
    }
    return nil
}

Building a simple CLI tool

Time to wrap this all up in a neat little CLI package:

func main() {
    action := flag.String("action", "fetch", "Action to perform: fetch, create, or update")
    flag.Parse()

    client := setupClient()

    switch *action {
    case "fetch":
        leads, err := fetchLeads(client)
        if err != nil {
            log.Fatalf("Failed to fetch leads: %v", err)
        }
        fmt.Printf("Fetched %d leads\n", len(leads))
    case "create":
        // Implement create logic
    case "update":
        // Implement update logic
    default:
        log.Fatalf("Unknown action: %s", *action)
    }
}

Testing the integration

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

func TestFetchLeads(t *testing.T) {
    client := setupTestClient()
    leads, err := fetchLeads(client)
    assert.NoError(t, err)
    assert.NotEmpty(t, leads)
}

Best practices and optimization

Remember to implement rate limiting and caching to keep your integration running smoothly. You could use a package like golang.org/x/time/rate for rate limiting.

Conclusion

And there you have it! You've just built a rock-solid WhatConverts API integration in Go. Pat yourself on the back, you've earned it. Remember, this is just the beginning - there's always room to expand and improve your integration. Keep coding, keep learning, and most importantly, keep having fun with Go!

For more details, check out the WhatConverts API documentation. Now go forth and conquer those leads!