Telnyx Fax – Go

Installation

go get github.com/team-telnyx/telnyx-go

Setup

import (
  "context"
  "fmt"
  "os"

  "github.com/team-telnyx/telnyx-go"
  "github.com/team-telnyx/telnyx-go/option"
)

client := telnyx.NewClient(
  option.WithAPIKey(os.Getenv("TELNYX_API_KEY")),
)

All examples below assume client is already initialized as shown above.

List all Fax Applications

This endpoint returns a list of your Fax Applications inside the ‘data’ attribute of the response.

GET /fax_applications

	page, err := client.FaxApplications.List(context.TODO(), telnyx.FaxApplicationListParams{})
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", page)

Creates a Fax Application

Creates a new Fax Application based on the parameters sent in the request.

POST /fax_applications — Required: application_name, webhook_event_url

Optional: active (boolean), anchorsite_override (enum), inbound (object), outbound (object), tags (array[string]), webhook_event_failover_url (uri), webhook_timeout_secs ([‘integer’, ‘null’])

	faxApplication, err := client.FaxApplications.New(context.TODO(), telnyx.FaxApplicationNewParams{
		ApplicationName: "fax-router",
		WebhookEventURL: "https://example.com",
	})
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", faxApplication.Data)

Retrieve a Fax Application

Return the details of an existing Fax Application inside the ‘data’ attribute of the response.

GET /fax_applications/{id}

	faxApplication, err := client.FaxApplications.Get(context.TODO(), "1293384261075731499")
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", faxApplication.Data)

Update a Fax Application

Updates settings of an existing Fax Application based on the parameters of the request.

PATCH /fax_applications/{id} — Required: application_name, webhook_event_url

Optional: active (boolean), anchorsite_override (enum), fax_email_recipient ([‘string’, ‘null’]), inbound (object), outbound (object), tags (array[string]), webhook_event_failover_url (uri), webhook_timeout_secs ([‘integer’, ‘null’])

	faxApplication, err := client.FaxApplications.Update(
		context.TODO(),
		"1293384261075731499",
		telnyx.FaxApplicationUpdateParams{
			ApplicationName: "fax-router",
			WebhookEventURL: "https://example.com",
		},
	)
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", faxApplication.Data)

Deletes a Fax Application

Permanently deletes a Fax Application.

DELETE /fax_applications/{id}

	faxApplication, err := client.FaxApplications.Delete(context.TODO(), "1293384261075731499")
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", faxApplication.Data)

View a list of faxes

GET /faxes

	page, err := client.Faxes.List(context.TODO(), telnyx.FaxListParams{})
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", page)

Send a fax

Send a fax.

POST /faxes — Required: connection_id, from, to

Optional: black_threshold (integer), client_state (string), from_display_name (string), media_name (string), media_url (string), monochrome (boolean), preview_format (enum), quality (enum), store_media (boolean), store_preview (boolean), t38_enabled (boolean), webhook_url (string)

	fax, err := client.Faxes.New(context.TODO(), telnyx.FaxNewParams{
		ConnectionID: "234423",
		From:         "+13125790015",
		To:           "+13127367276",
	})
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", fax.Data)

View a fax

GET /faxes/{id}

	fax, err := client.Faxes.Get(context.TODO(), "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e")
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", fax.Data)

Delete a fax

DELETE /faxes/{id}

	err := client.Faxes.Delete(context.TODO(), "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e")
	if err != nil {
		panic(err.Error())
	}

Cancel a fax

Cancel the outbound fax that is in one of the following states: queued, media.processed, originated or sending

POST /faxes/{id}/actions/cancel

	response, err := client.Faxes.Actions.Cancel(context.TODO(), "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e")
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", response.Data)

Refresh a fax

Refreshes the inbound fax’s media_url when it has expired

POST /faxes/{id}/actions/refresh

	response, err := client.Faxes.Actions.Refresh(context.TODO(), "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e")
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", response.Data)

Webhooks

The following webhook events are sent to your configured webhook URL. All webhooks include telnyx-timestamp and telnyx-signature-ed25519 headers for verification (Standard Webhooks compatible).

Webhook payload fields

fax.delivered

fax.failed

fax.media.processed

fax.queued

fax.sending.started