Step by Step Guide to Building an Agile CRM API Integration in Go

Introduction

Hey there, fellow Go enthusiast! Ready to supercharge your CRM game? Let's dive into building an Agile CRM API integration using Go. This powerful combo will have you managing contacts like a pro in no time.

Prerequisites

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

• Go installed (you're a Go dev, so I'm sure you're covered)
• An Agile CRM account with API credentials (if not, go grab one real quick)

Setting up the project

Let's get this show on the road:

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

We'll need a HTTP client, but Go's standard library has us covered. No extra dependencies required!

Authentication

First things first, let's create a client with your API credentials:

package main

import (
    "net/http"
    "encoding/base64"
)

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

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

func (c *Client) setAuthHeader(req *http.Request) {
    auth := base64.StdEncoding.EncodeToString([]byte(c.UserEmail + ":" + c.APIKey))
    req.Header.Set("Authorization", "Basic "+auth)
}

Basic API Operations

Now, let's implement some CRUD operations:

func (c *Client) GetContacts() ([]Contact, error) {
    // Implementation here
}

func (c *Client) CreateContact(contact Contact) error {
    // Implementation here
}

func (c *Client) UpdateContact(contact Contact) error {
    // Implementation here
}

func (c *Client) DeleteContact(id string) error {
    // Implementation here
}

Advanced Operations

Let's handle pagination and add some retry logic:

func (c *Client) GetAllContacts() ([]Contact, error) {
    // Implement pagination logic here
}

func (c *Client) retryRequest(req *http.Request) (*http.Response, error) {
    // Implement retry logic here
}

Building a Simple CLI Tool

Time to wrap this up in a neat CLI package:

package main

import (
    "flag"
    "fmt"
)

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

    client := NewClient("YOUR_BASE_URL", "YOUR_API_KEY", "YOUR_EMAIL")

    switch *action {
    case "get":
        // Implement get logic
    case "create":
        // Implement create logic
    // ... other cases
    default:
        fmt.Println("Invalid action")
    }
}

Testing

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

func TestGetContacts(t *testing.T) {
    // Implement test logic here
}

Best Practices

Remember to:

• Handle errors gracefully
• Log important information
• Use environment variables for sensitive data

Conclusion

And there you have it! You've just built a solid Agile CRM API integration in Go. Pretty cool, right? Now go forth and manage those contacts like a boss. If you need more info, check out the Agile CRM API docs. Happy coding!