Telnyx Webrtc - 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.

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 and retry with 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")
  }
}

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 mobile push credentials

GET /mobile_push_credentials

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

Returns: alias (string), certificate (string), created_at (date-time), id (string), private_key (string), project_account_json_file (object), record_type (string), type (string), updated_at (date-time)

Creates a new mobile push credential

POST /mobile_push_credentials — Required: type, certificate, private_key, alias

	pushCredentialResponse, err := client.MobilePushCredentials.New(context.Background(), telnyx.MobilePushCredentialNewParams{
		OfIos: &telnyx.MobilePushCredentialNewParamsCreateMobilePushCredentialRequestIos{
			Alias:       "LucyIosCredential",
			Certificate: "-----BEGIN CERTIFICATE----- MIIGVDCCBTKCAQEAsNlRJVZn9ZvXcECQm65czs... -----END CERTIFICATE-----",
			PrivateKey:  "-----BEGIN RSA PRIVATE KEY----- MIIEpQIBAAKCAQEAsNlRJVZn9ZvXcECQm65czs... -----END RSA PRIVATE KEY-----",
		},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", pushCredentialResponse.Data)

Returns: alias (string), certificate (string), created_at (date-time), id (string), private_key (string), project_account_json_file (object), record_type (string), type (string), updated_at (date-time)

Retrieves a mobile push credential

Retrieves mobile push credential based on the given push_credential_id

GET /mobile_push_credentials/{push_credential_id}

	pushCredentialResponse, err := client.MobilePushCredentials.Get(context.Background(), "0ccc7b76-4df3-4bca-a05a-3da1ecc389f0")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", pushCredentialResponse.Data)

Returns: alias (string), certificate (string), created_at (date-time), id (string), private_key (string), project_account_json_file (object), record_type (string), type (string), updated_at (date-time)

Deletes a mobile push credential

Deletes a mobile push credential based on the given push_credential_id

DELETE /mobile_push_credentials/{push_credential_id}

	err := client.MobilePushCredentials.Delete(context.Background(), "0ccc7b76-4df3-4bca-a05a-3da1ecc389f0")
	if err != nil {
		log.Fatal(err)
	}

List all credentials

List all On-demand Credentials.

GET /telephony_credentials

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

Returns: created_at (string), expired (boolean), expires_at (string), id (string), name (string), record_type (string), resource_id (string), sip_password (string), sip_username (string), updated_at (string), user_id (string)

Create a credential

Create a credential.

POST /telephony_credentials — Required: connection_id

Optional: expires_at (string), name (string), tag (string)

	telephonyCredential, err := client.TelephonyCredentials.New(context.Background(), telnyx.TelephonyCredentialNewParams{
		ConnectionID: "1234567890",
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", telephonyCredential.Data)

Returns: created_at (string), expired (boolean), expires_at (string), id (string), name (string), record_type (string), resource_id (string), sip_password (string), sip_username (string), updated_at (string), user_id (string)

Get a credential

Get the details of an existing On-demand Credential.

GET /telephony_credentials/{id}

	telephonyCredential, err := client.TelephonyCredentials.Get(context.Background(), "id")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", telephonyCredential.Data)

Returns: created_at (string), expired (boolean), expires_at (string), id (string), name (string), record_type (string), resource_id (string), sip_password (string), sip_username (string), updated_at (string), user_id (string)

Update a credential

Update an existing credential.

PATCH /telephony_credentials/{id}

Optional: connection_id (string), expires_at (string), name (string), tag (string)

	telephonyCredential, err := client.TelephonyCredentials.Update(
		context.Background(),
		"id",
		telnyx.TelephonyCredentialUpdateParams{},
	)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", telephonyCredential.Data)

Returns: created_at (string), expired (boolean), expires_at (string), id (string), name (string), record_type (string), resource_id (string), sip_password (string), sip_username (string), updated_at (string), user_id (string)

Delete a credential

Delete an existing credential.

DELETE /telephony_credentials/{id}

	telephonyCredential, err := client.TelephonyCredentials.Delete(context.Background(), "id")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", telephonyCredential.Data)

Returns: created_at (string), expired (boolean), expires_at (string), id (string), name (string), record_type (string), resource_id (string), sip_password (string), sip_username (string), updated_at (string), user_id (string)