/telnyx-numbers-services-go

name: telnyx-numbers-services-go
description: >-
  Configure voicemail, voice channels, and emergency (E911) services for your
  phone numbers. This skill provides Go SDK examples.
metadata:
  author: telnyx
  product: numbers-services
  language: go
  generated_by: telnyx-openapi-pipeline

<!-- Auto-generated from Telnyx OpenAPI specs. Do not edit. -->

Telnyx Numbers Services - 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")),
  option.WithPublicKey(os.Getenv("TELNYX_PUBLIC_KEY")), // Required for client.Webhooks.Unwrap (webhook verification)
)

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

Error Handling

All API calls can fail with network errors, rate limits (429), validation errors (422), or authentication errors (401). Always handle errors in production code:

import "errors"

result, err := client.Messages.Send(ctx, params)
if err != nil {
  var apiErr *telnyx.Error
  if errors.As(err, &apiErr) {
    switch apiErr.StatusCode {
    case 422:
      fmt.Println("Validation error — check required fields and formats")
    case 429:
      // Rate limited — wait, then retry the request (bounded exponential backoff)
      fmt.Println("Rate limited, retrying...")
    default:
      fmt.Printf("API error %d: %s\n", apiErr.StatusCode, apiErr.Error())
    }
  } else {
    fmt.Println("Network error — check connectivity and retry")
  }
  return err // Propagate: a failed request must never look like success to the caller
}

Common error codes: `401` invalid API key, `403` insufficient permissions, `404` resource not found, `422` validation error (check field formats), `429` rate limited (retry with exponential backoff).

Important Notes

• **Pagination:** Use `ListAutoPaging()` for automatic iteration: `iter := client.Resource.ListAutoPaging(ctx, params); for iter.Next() { item := iter.Current() }`.

List your voice channels for non-US zones

Returns the non-US voice channels for your account. voice channels allow you to use Channel Billing for calls to your Telnyx phone numbers. Please check the Telnyx Support Articles section for full information and examples of how to utilize Channel Billing.

`GET /channel_zones`

	page, err := client.ChannelZones.List(context.Background(), telnyx.ChannelZoneListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", page)

Returns: `channels` (int64), `countries` (array[string]), `created_at` (string), `id` (string), `name` (string), `record_type` (enum: channel_zone), `updated_at` (string)

Update voice channels for non-US Zones

Update the number of Voice Channels for the Non-US Zones. This allows your account to handle multiple simultaneous inbound calls to Non-US numbers. Use this endpoint to increase or decrease your capacity based on expected call volume.

`PUT /channel_zones/{channel_zone_id}` — Required: `channels`

	channelZone, err := client.ChannelZones.Update(
		context.Background(),
		"channel_zone_id",
		telnyx.ChannelZoneUpdateParams{
			Channels: 0,
		},
	)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", channelZone.ID)

Returns: `channels` (int64), `countries` (array[string]), `created_at` (string), `id` (string), `name` (string), `record_type` (enum: channel_zone), `updated_at` (string)

List dynamic emergency addresses

Returns the dynamic emergency addresses according to filters

`GET /dynamic_emergency_addresses`

	page, err := client.DynamicEmergencyAddresses.List(context.Background(), telnyx.DynamicEmergencyAddressListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", page)

Returns: `administrative_area` (string), `country_code` (enum: US, CA, PR), `created_at` (string), `extended_address` (string), `house_number` (string), `house_suffix` (string), `id` (string), `locality` (string), `postal_code` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_name` (string), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

Create a dynamic emergency address.

Creates a dynamic emergency address, the validated physical location used when provisioning dynamic emergency endpoints.

`POST /dynamic_emergency_addresses` — Required: `house_number`, `street_name`, `locality`, `administrative_area`, `postal_code`, `country_code`

Optional: `created_at` (string), `extended_address` (string), `house_suffix` (string), `id` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

	dynamicEmergencyAddress, err := client.DynamicEmergencyAddresses.New(context.Background(), telnyx.DynamicEmergencyAddressNewParams{
		DynamicEmergencyAddress: telnyx.DynamicEmergencyAddressParam{
			AdministrativeArea: "TX",
			CountryCode:        telnyx.DynamicEmergencyAddressCountryCodeUs,
			HouseNumber:        "600",
			Locality:           "Austin",
			PostalCode:         "78701",
			StreetName:         "Congress",
		},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", dynamicEmergencyAddress.Data)

Returns: `administrative_area` (string), `country_code` (enum: US, CA, PR), `created_at` (string), `extended_address` (string), `house_number` (string), `house_suffix` (string), `id` (string), `locality` (string), `postal_code` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_name` (string), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)