twilio-go

Project Status

⚠️ This project is currently in PILOT and under active development. If you've identified an issue, please open an issue. If you would like to participate in the pilot, please sign up for Twilio Insiders.

All the code here was generated by twilio-oai-generator by leveraging openapi-generator and twilio-oai. If you find an issue with the generation or the OpenAPI specs, please go ahead and open an issue or a PR against the relevant repositories.

Documentation

The documentation for the Twilio API can be found here.

The Go library documentation can be found here.

Supported Go Versions

This library supports the following Go implementations:

Go 1.15
Go 1.16
Go 1.17
Go 1.18

Installation

To use twilio-go in your project initialize go modules then run:

go get github.com/twilio/twilio-go

Getting Started

Getting started with the Twilio API couldn't be easier. Create a RestClient and you're ready to go.

API Credentials

The Twilio RestClient needs your Twilio credentials. We recommend storing them as environment variables, so that you don't have to worry about committing and accidentally posting them somewhere public. See http://twil.io/secure for more details on how to store environment variables.

package main

import "github.com/twilio/twilio-go"

func main() {
	// This will look for `TWILIO_ACCOUNT_SID` and `TWILIO_AUTH_TOKEN` variables inside the current environment to initialize the constructor
	// You can find your Account SID and Auth Token at twilio.com/console
	// `TWILIO_ACCOUNT_SID` should be in format "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
	client := twilio.NewRestClient()
}

If you don't want to use environment variables, you can also pass the credentials directly to the constructor as below.

package main

import "github.com/twilio/twilio-go"

func main() {
	accountSid := "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
	authToken := "YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY"
	client := twilio.NewRestClientWithParams(twilio.ClientParams{
		Username: accountSid,
		Password: authToken,
	})
}

Using Subaccount

Subaccounts in Twilio are just accounts that are "owned" by your account. Twilio users can create subaccounts to help separate Twilio account usage into different buckets.

If you wish to make API calls with a Subaccount, you can do so by setting the AccountSid field in the twilio.ClientParams:

package main

import "github.com/twilio/twilio-go"

func main() {
	// subaccountSid should also be in format "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
	subaccountSid := os.Getenv("TWILIO_SUBACCOUNT_SID")
	client := twilio.NewRestClientWithParams(twilio.ClientParams{
		AccountSid: subaccountSid,
	})
}

Specify a Region and/or Edge

package main

import (
	"github.com/twilio/twilio-go"
)

func main() {
	client := twilio.NewRestClient()
	client.SetRegion("au1")
	client.SetEdge("sydney")
}

This will result in the hostname transforming from api.twilio.com to api.sydney.au1.twilio.com.

A Twilio client constructed without these parameters will also look for TWILIO_REGION and TWILIO_EDGE variables inside the current environment.

Buy a phone number

package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
)

func main() {
	phoneNumber := "AVAILABLE_TWILIO_PHONE_NUMBER"

	client := twilio.NewRestClient()

	params := &openapi.CreateIncomingPhoneNumberParams{}
	params.SetPhoneNumber(phoneNumber)

	resp, err := client.ApiV2010.CreateIncomingPhoneNumber(params)
	if err != nil {
		fmt.Println(err.Error())
	} else {
		fmt.Println("Phone Number Status: " + *resp.Status)
	}
}

Send a text message

package main

import (
	"encoding/json"
	"fmt"
	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
	"os"
)

func main() {
	from := os.Getenv("TWILIO_FROM_PHONE_NUMBER")
	to := os.Getenv("TWILIO_TO_PHONE_NUMBER")

	client := twilio.NewRestClient()

	params := &openapi.CreateMessageParams{}
	params.SetTo(to)
	params.SetFrom(from)
	params.SetBody("Hello there")

	resp, err := client.ApiV2010.CreateMessage(params)
	if err != nil {
		fmt.Println(err.Error())
	} else {
		response, _ := json.Marshal(*resp)
		fmt.Println("Response: " + string(response))
	}
}

Make a call

package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
	"os"
)

func main() {
	from := os.Getenv("TWILIO_FROM_PHONE_NUMBER")
	to := os.Getenv("TWILIO_TO_PHONE_NUMBER")

	client := twilio.NewRestClient()

	params := &openapi.CreateCallParams{}
	params.SetTo(to)
	params.SetFrom(from)
	params.SetUrl("http://twimlets.com/holdmusic?Bucket=com.twilio.music.ambient")

	resp, err := client.ApiV2010.CreateCall(params)
	if err != nil {
		fmt.Println(err.Error())
	} else {
		fmt.Println("Call Status: " + *resp.Status)
		fmt.Println("Call Sid: " + *resp.Sid)
		fmt.Println("Call Direction: " + *resp.Direction)
	}
}

Create a Serverless Function

package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/serverless/v1"
)

func main() {
	// serviceSid should be in format "ZSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
	serviceSid := os.Getenv("TWILIO_SERVICE_SID")

	client := twilio.NewRestClient()

	params := &openapi.CreateFunctionParams{}
	params.SetFriendlyName("My Serverless func")

	resp, err := client.ServerlessV1.CreateFunction(serviceSid, params)
	if err != nil {
		fmt.Println(err.Error())
	} else {
		fmt.Println(*resp.Sid)
	}
}

Create a Studio Flow

package main

import (
	"encoding/json"
	"fmt"

	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/studio/v2"
)

func main() {
	var jsonStr = `{
		"description":"Twilio Studio flow service",
		"initial_state":"Trigger",
		"states":[
			{
				"properties":{
					"offset":{
						"y":0,
						"x":0
					}
				},
				"transitions":[

				],
				"name":"Trigger",
				"type":"trigger"
			}
		]
	}`

	definition := make(map[string]interface{})
	_ = json.Unmarshal([]byte(jsonStr), &definition)

	client := twilio.NewRestClient()
	params := &openapi.CreateFlowParams{
		Definition: &definition,
	}
	params.SetCommitMessage("commit")
	params.SetFriendlyName("Studio flow from Go")
	params.SetStatus("draft")

	resp, err := client.StudioV2.CreateFlow(params)
	if err != nil {
		fmt.Println(err.Error())
	} else {
		fmt.Println(*resp.Sid)
	}
}

Using Paging

This library also offers paging functionality. Collections such as calls and messages have ListXxx and StreamXxx functions that page under the hood. With both list and stream, you can specify the number of records you want to receive (limit) and the maximum size you want each page fetch to be (pageSize). The library will then handle the task for you.

List eagerly fetches all records and returns them as a list, whereas Stream streams the records and lazily retrieves the pages as you iterate over the collection. Also, List returns no records if any errors are encountered while paging, whereas Stream returns all records up until encountering an error. You can also page manually using the PageXxx function in each of the apis.

package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
	"os"
)

func main() {
	from := os.Getenv("TWILIO_FROM_PHONE_NUMBER")

	client := twilio.NewRestClient()

	params := &openapi.ListMessageParams{}
	params.SetFrom(from)
	params.SetPageSize(20)
	params.SetLimit(100)

	resp, _ := client.ApiV2010.ListMessage(params)
	for record := range resp {
		fmt.Println("Body: ", *resp[record].Body)
	}

	channel, _ := client.ApiV2010.StreamMessage(params)
	for record := range channel {
		fmt.Println("Body: ", *record.Body)
	}
}

package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
	"net/url"
	"os"
)

func main() {
	from := os.Getenv("TWILIO_FROM_PHONE_NUMBER")

	client := twilio.NewRestClient()

	params := &openapi.ListMessageParams{}
	params.SetFrom(from)
	params.SetPageSize(20)

	var pageToken string
	var pageNumber string
	resp, err = client.ApiV2010.PageMessage(params, "", "")
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(resp.NextPageUri)
		u, _ := url.Parse(resp.NextPageUri)
		q := u.Query()
		pageToken = q.Get("PageToken")
		pageNumber = q.Get("Page")
	}

	resp, err := client.ApiV2010.PageMessage(params, pageToken, pageNumber)
	if err != nil {
		fmt.Println(err)
	} else {
		if resp != nil {
			fmt.Println(*resp.Messages[0].Body)
		}
	}
}

Handling Exceptions

package main

import (
	"fmt"
	"os"

	"github.com/twilio/twilio-go"
	twilioclient "github.com/twilio/twilio-go/client"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
)

func main() {
	phoneNumber := os.Getenv("TWILIO_PHONE_NUMBER")

	client := twilio.NewRestClient()

	params := &openapi.CreateIncomingPhoneNumberParams{}
	params.SetPhoneNumber(phoneNumber)

	resp, err := client.ApiV2010.CreateIncomingPhoneNumber(params)
	if err != nil {
		twilioError := err.(*twilioclient.TwilioRestError)
		fmt.Println(twilioError.Error())
	}
}

For more descriptive exception types, please see the Twilio documentation.

Advanced Usage

Using Standalone Products

Don't want to import the top-level Twilio RestClient with access to the full suite of Twilio products? Use standalone product services instead:

package main

import (
	"github.com/twilio/twilio-go/client"
	apiv2010 "github.com/twilio/twilio-go/rest/api/v2010"
	serverless "github.com/twilio/twilio-go/rest/serverless/v1"
	"os"
)

func main() {
	accountSid := os.Getenv("TWILIO_ACCOUNT_SID")
	authToken := os.Getenv("TWILIO_AUTH_TOKEN")

	// Create an instance of our default BaseClient implementation
	// You will need to provide your API credentials to the Client manually
	defaultClient := &client.Client{
		Credentials: client.NewCredentials(accountSid, authToken),
	}
	defaultClient.SetAccountSid(accountSid)

	coreApiService := apiv2010.NewApiServiceWithClient(defaultClient)
	serverlessApiService := serverless.NewApiServiceWithClient(defaultClient)
}

Using a Custom Client

package main

import (
	"fmt"
	"net/http"
	"net/url"
	"os"

	"github.com/twilio/twilio-go"
	"github.com/twilio/twilio-go/client"
	openapi "github.com/twilio/twilio-go/rest/api/v2010"
)

type MyClient struct {
	client.Client
}

func (c *MyClient) SendRequest(method string, rawURL string, data url.Values, headers map[string]interface{}) (*http.Response, error) {
	// Custom code to pre-process request here
	resp, err := c.Client.SendRequest(method, rawURL, data, headers)
	// Custom code to pre-process response here
	fmt.Println(resp.StatusCode)
	return resp, err
}

func main() {
	accountSid := os.Getenv("TWILIO_ACCOUNT_SID")
	authToken := os.Getenv("TWILIO_AUTH_TOKEN")

	customClient := &MyClient{
		Client: client.Client{
			Credentials: client.NewCredentials(accountSid, authToken),
		},
	}
	customClient.SetAccountSid(accountSid)

	twilioClient := twilio.NewRestClientWithParams(twilio.ClientParams{Client: customClient})

	// You may also use custom clients with standalone product services
	twilioApiV2010 := openapi.NewApiServiceWithClient(customClient)
}

Building Access Tokens

This library supports access token generation for use in the Twilio Client SDKs.

Here's how you would generate a token for the Voice SDK:

package main

import (
	"os"
	"github.com/twilio/twilio-go/client/jwt"
)

accountSid := os.Getenv("TWILIO_ACCOUNT_SID")
applicationSid := os.Getenv("TWILIO_TWIML_APP_SID")
apiKey := os.Getenv("TWILIO_API_KEY")
apiSecret := os.Getenv("TWILIO_API_SECRET")
identity := "fake123"

params := jwt.AccessTokenParams{
	AccountSid: accountSid,
	SigningKeySid: apiKey,
	Secret: apiSecret,
	Identity: identity,
}

jwtToken := jwt.CreateAccessToken(params)
voiceGrant := &jwt.VoiceGrant{
	Incoming: jwt.Incoming{Allow: true},
	Outgoing: jwt.Outgoing{
		ApplicationSid: applicationSid,
	},
}

jwtToken.AddGrant(voiceGrant)
token, err := jwtToken.ToJwt()

Creating Capability Token for TaskRouter v1:

package main

import (
	"os"
	"github.com/twilio/twilio-go/client/jwt/taskrouter"
)

AccountSid := os.Getenv("TWILIO_ACCOUNT_SID")
AuthToken := os.Getenv("TWILIO_AUTH_TOKEN")
WorkspaceSid := os.Getenv("TWILIO_WORKSPACE_SID")
ChannelID := os.Getenv("TWILIO_CHANNEL_ID")

Params = taskrouter.CapabilityTokenParams{
	AccountSid: AccountSid,
	AuthToken: AuthToken,
	WorkspaceSid: WorkspaceSid,
	ChannelID: ChannelID,
}

capabilityToken := taskrouter.CreateCapabilityToken(Params)
token, err := capabilityToken.ToJwt()

Local Usage

Building

To build twilio-go run:

go build ./...

Testing

To execute the test suite run:

go test ./...

Generating Local Documentation

To generate documentation, from the root directory:

godoc -http=localhost:{port number}

Then, navigate to http://localhost:{port number}/pkg/github.com/twilio/twilio-go in your local browser.

Example:

godoc -http=localhost:6060

http://localhost:6060/pkg/github.com/twilio/twilio-go

Docker Image

The Dockerfile present in this repository and its respective twilio/twilio-go Docker image are currently used by Twilio for testing purposes only.

Getting help

If you need help installing or using the library, please check the Twilio Support Help Center first, and file a support ticket if you don't find an answer to your question.

If you've instead found a bug in the library or would like new features added, go ahead and open issues or pull requests against this repo!

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