Step by Step Guide to Building a Process Street API Integration in Go

Aug 15, 2024 • 7 minute read

Introduction

Hey there, fellow Go enthusiast! Ready to dive into the world of Process Street API integration? You're in for a treat. We'll be building a sleek, efficient integration that'll have you managing workflows and checklists like a pro. Let's get cracking!

Prerequisites

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

Go installed (I know, obvious, right?)
A Process Street API key (if you don't have one, grab it from your account settings)
Your favorite code editor at the ready

Setting up the project

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

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

Easy peasy! Now we've got our Go module initialized and we're ready to rock.

Authentication

Alright, let's tackle authentication. Process Street uses API keys, so we'll need to set that up in our requests. Create a new file called client.go:

package main

import (
    "net/http"
)

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

func NewClient(apiKey string) *Client {
    return &Client{
        APIKey:     apiKey,
        HTTPClient: &http.Client{},
    }
}

Nice and clean, right? This Client struct will be our ticket to the Process Street API.

Making API requests

Now, let's create a method to make API requests:

func (c *Client) makeRequest(method, url string, body io.Reader) (*http.Response, error) {
    req, err := http.NewRequest(method, url, body)
    if err != nil {
        return nil, err
    }

    req.Header.Set("Authorization", "Bearer "+c.APIKey)
    req.Header.Set("Content-Type", "application/json")

    return c.HTTPClient.Do(req)
}

This method will handle our HTTP requests and take care of those pesky headers for us.

Implementing core functionalities

Let's implement some core functionalities. We'll start with fetching workflows:

func (c *Client) GetWorkflows() ([]Workflow, error) {
    resp, err := c.makeRequest("GET", "https://api.process.st/v1/workflows", nil)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    var workflows []Workflow
    err = json.NewDecoder(resp.Body).Decode(&workflows)
    return workflows, err
}

Cool, right? Now you can fetch all your workflows with a single function call!

Error handling and logging

Don't forget to implement proper error handling and logging. Here's a quick example:

import (
    "log"
)

func (c *Client) GetWorkflows() ([]Workflow, error) {
    // ... previous code ...

    if err != nil {
        log.Printf("Error fetching workflows: %v", err)
        return nil, err
    }

    // ... rest of the function ...
}

Testing the integration

Testing is crucial, folks! Here's a simple test for our GetWorkflows function:

func TestGetWorkflows(t *testing.T) {
    client := NewClient("your-api-key")
    workflows, err := client.GetWorkflows()

    if err != nil {
        t.Fatalf("Error getting workflows: %v", err)
    }

    if len(workflows) == 0 {
        t.Error("Expected workflows, got none")
    }
}

Run this with go test and watch the magic happen!

Optimizations

To make our integration even better, consider implementing rate limiting and caching. Here's a quick example of rate limiting:

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

type Client struct {
    // ... previous fields ...
    Limiter *rate.Limiter
}

func NewClient(apiKey string) *Client {
    return &Client{
        // ... previous initializations ...
        Limiter: rate.NewLimiter(rate.Limit(5), 1), // 5 requests per second
    }
}

func (c *Client) makeRequest(method, url string, body io.Reader) (*http.Response, error) {
    if err := c.Limiter.Wait(context.Background()); err != nil {
        return nil, err
    }
    // ... rest of the function ...
}

Conclusion

And there you have it! You've just built a solid foundation for a Process Street API integration in Go. You've got authentication, API requests, core functionalities, error handling, testing, and even some optimizations. Pretty impressive, right?

Remember, this is just the beginning. There's always room for more features, better error handling, and further optimizations. Keep exploring the Process Street API documentation and see what other cool stuff you can add to your integration.

Happy coding, Go developers! 🚀

Resources

Now go forth and integrate with confidence!