# README

MessageBird's REST API for Go

This repository contains the open source Go client for MessageBird's REST API. Documentation can be found at: https://developers.messagebird.com.

Requirements

Sign up for a free MessageBird account
Create a new access key in the dashboard.
An application written in Go to make use of this API

Installation

The easiest way to use the MessageBird API in your Go project is to install it using go get:

$ go get github.com/messagebird/go-rest-api/v7

Examples

Here is a quick example on how to get started. Assuming the go get installation worked, you can import the messagebird package like this:

import "github.com/messagebird/go-rest-api/v7"

Then, create an instance of messagebird.Client. It can be used to access the MessageBird APIs.

// Access keys can be managed through our dashboard.
accessKey := "your-access-key"

// Create a client.
client := messagebird.New(accessKey)

// Request the balance information, returned as a balance.Balance object.
balance, err := balance.Read(client)
if err != nil {
	// Handle error.
	return
}

// Display the results.
fmt.Println("Payment: ", balance.Payment)
fmt.Println("Type:", balance.Type)
fmt.Println("Amount:", balance.Amount)

This will give you something like:

$ go run example.go
Payment: prepaid
Type: credits
Amount: 9

Please see the other examples for a complete overview of all the available API calls.

Errors

When something goes wrong, our APIs can return more than a single error. They are therefore returned by the client as "error responses" that contain a slice of errors.

It is important to notice that the Voice API returns errors with a format that slightly differs from other APIs. For this reason, errors returned by the voice package are of type voice.ErrorResponse. It contains voice.Error structs. All other packages return messagebird.ErrorResponse structs that contain a slice of messagebird.Error.

An example of "simple" error handling is shown in the example above. Let's look how we can gain more in-depth insight in what exactly went wrong:

import "github.com/messagebird/go-rest-api/v7"
import "github.com/messagebird/go-rest-api/v7/sms"

// ...

_, err := sms.Read(client, "some-id")
if err != nil {
	mbErr, ok := err.(messagebird.ErrorResponse)
	if !ok {
		// A non-MessageBird error occurred (no connection, perhaps?) 
		return err
	}
	
	fmt.Println("Code:", mbErr.Errors[0].Code)
	fmt.Println("Description:", mbErr.Errors[0].Description)
	fmt.Println("Parameter:", mbErr.Errors[0].Parameter)
}

voice.ErrorResponse is very similar, except that it holds voice.Error structs - those contain only Code and Message (not description!) fields:

import "github.com/messagebird/go-rest-api/v7/voice"

// ...

_, err := voice.CallFlowByID(client, "some-id")
if err != nil {
	vErr, ok := err.(voice.ErrorResponse)
	if !ok {
    		// A non-MessageBird (Voice) error occurred (no connection, perhaps?) 
    		return err
    }
	
	fmt.Println("Code:", vErr.Errors[0].Code)
	fmt.Println("Message:", vErr.Errors[0].Message)
}

Conversations WhatsApp Sandbox

To use the whatsapp sandbox you need to enable the FeatureConversationsAPIWhatsAppSandbox feature.

	client.EnableFeatures(messagebird.FeatureConversationsAPIWhatsAppSandbox)

Documentation

Complete documentation, instructions, and examples are available at: https://developers.messagebird.com.

Upgrading

If you're upgrading from older versions, please read the Messagebird go-rest-api upgrading guide.