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

Aug 18, 20246 minute read

Introduction

Hey there, fellow developer! Ready to supercharge your CRM game with Nutshell? Let's dive into building a slick API integration using Go. Nutshell's API is a powerhouse for managing contacts, leads, and more. We'll get you up and running in no time!

Prerequisites

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

  • Go installed (you're a pro, so I'm sure you do)
  • Nutshell API credentials (grab 'em from your account)
  • Your favorite code editor ready to rock

Setting up the project

Let's kick things off:

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

Now, let's grab the essentials:

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

Authentication

Time to get cozy with Nutshell. We'll create a reusable client:

package main import ( "github.com/go-resty/resty/v2" ) type NutshellClient struct { client *resty.Client apiKey string } func NewNutshellClient(apiKey string) *NutshellClient { return &NutshellClient{ client: resty.New(), apiKey: apiKey, } }

Basic API requests

Let's fetch some contacts, shall we?

func (nc *NutshellClient) GetContacts() ([]Contact, error) { var result struct { Contacts []Contact `json:"contacts"` } _, err := nc.client.R(). SetHeader("Authorization", "Basic "+nc.apiKey). SetResult(&result). Get("https://app.nutshell.com/api/v1/contacts") return result.Contacts, err }

Creating a lead? Easy peasy:

func (nc *NutshellClient) CreateLead(lead Lead) (Lead, error) { var result struct { Lead Lead `json:"lead"` } _, err := nc.client.R(). SetHeader("Authorization", "Basic "+nc.apiKey). SetBody(lead). SetResult(&result). Post("https://app.nutshell.com/api/v1/leads") return result.Lead, err }

Handling responses

Go's got your back with built-in JSON parsing:

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

Don't forget to check for errors:

contacts, err := client.GetContacts() if err != nil { log.Fatalf("Error fetching contacts: %v", err) }

Advanced features

Pagination? We've got you covered:

func (nc *NutshellClient) GetContactsPaginated(page, limit int) ([]Contact, error) { // Implementation here }

Building a simple CLI tool

Let's wrap it all up in a neat CLI package:

package main import ( "flag" "fmt" "log" ) func main() { apiKey := flag.String("api-key", "", "Nutshell API key") flag.Parse() if *apiKey == "" { log.Fatal("API key is required") } client := NewNutshellClient(*apiKey) contacts, err := client.GetContacts() if err != nil { log.Fatalf("Error fetching contacts: %v", err) } for _, contact := range contacts { fmt.Printf("Contact: %s (ID: %d)\n", contact.Name, contact.ID) } }

Best practices

  • Respect rate limits (Nutshell will thank you)
  • Cache frequently accessed data
  • Log errors for easier debugging

Testing

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

func TestGetContacts(t *testing.T) { // Mock the API response // Test the GetContacts function // Assert the results }

Conclusion

And there you have it! You've just built a solid foundation for your Nutshell API integration in Go. The sky's the limit from here – add more endpoints, build a full-fledged application, or integrate it into your existing systems.

Resources

Now go forth and conquer the world of CRM integrations! Happy coding!