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

Aug 15, 2024 • 6 minute read

Introduction

Hey there, fellow developer! Ready to dive into the world of ServiceTitan API integration using Go? You're in for a treat. ServiceTitan's API is a powerful tool that can supercharge your field service management operations, and Go is the perfect language to harness its potential. Let's get cracking!

Prerequisites

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

Go installed on your machine (you're a pro, so I'm sure you've got this covered)
ServiceTitan API credentials (if you don't have these, reach out to the ServiceTitan team)
Your favorite code editor ready to roll

Setting up the project

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

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

Easy peasy, right? Now we're ready to start coding!

Authentication

ServiceTitan uses OAuth 2.0, so let's implement that flow:

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

func getToken() (*oauth2.Token, error) {
    // Implement OAuth 2.0 flow here
    // Don't forget to securely store your tokens!
}

Pro tip: Always refresh your access token before it expires to keep your integration running smoothly.

Making API requests

Time to create our HTTP client:

import (
    "net/http"
    "time"
)

func createClient() *http.Client {
    return &http.Client{
        Timeout: time.Second * 30,
        // Add retries and rate limiting logic here
    }
}

Remember, be nice to the API. Implement proper rate limiting and retries to avoid hitting those pesky limits.

Implementing key API endpoints

Let's tackle some core endpoints:

func getCustomers() {
    // Implement GET /customers
}

func createJob() {
    // Implement POST /jobs
}

func getInvoices() {
    // Implement GET /invoices
}

These are just examples - feel free to add more based on your specific needs.

Error handling and logging

Don't let errors catch you off guard:

import (
    "log"
)

func handleError(err error) {
    if err != nil {
        log.Printf("Error occurred: %v", err)
        // Add your error handling logic here
    }
}

Proper logging will save you hours of debugging headaches. Trust me on this one.

Data processing and storage

Parse those JSON responses like a boss:

import (
    "encoding/json"
)

type Customer struct {
    ID   string `json:"id"`
    Name string `json:"name"`
    // Add more fields as needed
}

func parseCustomer(data []byte) (*Customer, error) {
    var customer Customer
    err := json.Unmarshal(data, &customer)
    return &customer, err
}

Consider using a database to store this data for quick access in the future.

Testing

Don't skip this part! Testing is crucial:

func TestGetCustomers(t *testing.T) {
    // Implement your test here
}

Mix unit tests with integration tests to ensure your code works flawlessly with the ServiceTitan API.

Best practices and optimization

Remember:

Cache frequently accessed data to reduce API calls
Use bulk endpoints when possible
Keep your code modular and reusable

Conclusion

And there you have it! You've just built a solid foundation for your ServiceTitan API integration in Go. Pretty cool, right? As you continue to build on this, remember to keep an eye on the ServiceTitan API docs for any updates or new features.

Resources

Now go forth and code! You've got this. If you run into any snags, don't hesitate to reach out to the ServiceTitan developer community. Happy coding!