Telnyx Numbers Go

Telnyx Numbers - 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"

availablePhoneNumbers, err := client.AvailablePhoneNumbers.List(context.Background(), telnyx.AvailablePhoneNumberListParams{})
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:
      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

• Phone numbers must be in E.164 format (e.g., +13125550001). Include the + prefix and country code. No spaces, dashes, or parentheses.
• Pagination: Use ListAutoPaging() for automatic iteration: iter := client.Resource.ListAutoPaging(ctx, params); for iter.Next() { item := iter.Current() }.

Reference Use Rules

Do not invent Telnyx parameters, enums, response fields, or webhook fields.

• If the parameter, enum, or response field you need is not shown inline in this skill, read references/api-details.md before writing code.
• Before using any operation in ## Additional Operations, read the optional-parameters section and the response-schemas section.

Core Tasks

Search available phone numbers

Number search is the entrypoint for provisioning. Agents need the search method, key query filters, and the fields returned for candidate numbers.

client.AvailablePhoneNumbers.List() — GET /available_phone_numbers

	availablePhoneNumbers, err := client.AvailablePhoneNumbers.List(context.Background(), telnyx.AvailablePhoneNumberListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", availablePhoneNumbers.Data)

Response wrapper:

• items: availablePhoneNumbers.data
• pagination: availablePhoneNumbers.meta

Primary item fields:

• PhoneNumber
• RecordType
• Quickship
• Reservable
• BestEffort
• CostInformation

Create a number order

Number ordering is the production provisioning step after number selection.

client.NumberOrders.New() — POST /number_orders

	numberOrder, err := client.NumberOrders.New(context.Background(), telnyx.NumberOrderNewParams{
		PhoneNumbers: []telnyx.NumberOrderNewParamsPhoneNumber{{PhoneNumber: "+18005550101"}},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberOrder.Data)

Primary response fields:

• numberOrder.Data.ID
• numberOrder.Data.Status
• numberOrder.Data.PhoneNumbersCount
• numberOrder.Data.RequirementsMet
• numberOrder.Data.MessagingProfileID
• numberOrder.Data.ConnectionID

Check number order status

Order status determines whether provisioning completed or additional requirements are still blocking fulfillment.

client.NumberOrders.Get() — GET /number_orders/{number_order_id}

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

Primary response fields:

• numberOrder.Data.ID
• numberOrder.Data.Status
• numberOrder.Data.RequirementsMet
• numberOrder.Data.PhoneNumbersCount
• numberOrder.Data.PhoneNumbers
• numberOrder.Data.ConnectionID

Important Supporting Operations

Use these when the core tasks above are close to your flow, but you need a common variation or follow-up step.

Create a number reservation

Create or provision an additional resource when the core tasks do not cover this flow.

client.NumberReservations.New() — POST /number_reservations

	numberReservation, err := client.NumberReservations.New(context.Background(), telnyx.NumberReservationNewParams{
		PhoneNumbers: []telnyx.NumberReservationNewParamsPhoneNumber{{PhoneNumber: "+18005550101"}},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberReservation.Data)

Primary response fields:

• numberReservation.Data.ID
• numberReservation.Data.Status
• numberReservation.Data.CreatedAt
• numberReservation.Data.UpdatedAt
• numberReservation.Data.CustomerReference
• numberReservation.Data.Errors

Retrieve a number reservation

Fetch the current state before updating, deleting, or making control-flow decisions.

client.NumberReservations.Get() — GET /number_reservations/{number_reservation_id}

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

Primary response fields:

• numberReservation.Data.ID
• numberReservation.Data.Status
• numberReservation.Data.CreatedAt
• numberReservation.Data.UpdatedAt
• numberReservation.Data.CustomerReference
• numberReservation.Data.Errors

List Advanced Orders

Inspect available resources or choose an existing resource before mutating it.

client.AdvancedOrders.List() — GET /advanced_orders

	advancedOrders, err := client.AdvancedOrders.List(context.Background())
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", advancedOrders.Data)

Response wrapper:

• items: advancedOrders.data

Primary item fields:

• ID
• Status
• AreaCode
• Comments
• CountryCode
• CustomerReference

Create Advanced Order

Create or provision an additional resource when the core tasks do not cover this flow.

client.AdvancedOrders.New() — POST /advanced_orders

	advancedOrder, err := client.AdvancedOrders.New(context.Background(), telnyx.AdvancedOrderNewParams{
		AdvancedOrder: telnyx.AdvancedOrderParam{},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", advancedOrder.ID)

Primary response fields:

• advancedOrder.ID
• advancedOrder.Status
• advancedOrder.AreaCode
• advancedOrder.Comments
• advancedOrder.CountryCode
• advancedOrder.CustomerReference

Update Advanced Order

Modify an existing resource without recreating it.

client.AdvancedOrders.UpdateRequirementGroup() — PATCH /advanced_orders/{advanced-order-id}/requirement_group

	response, err := client.AdvancedOrders.UpdateRequirementGroup(
		context.Background(),
		"182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
		telnyx.AdvancedOrderUpdateRequirementGroupParams{
			AdvancedOrder: telnyx.AdvancedOrderParam{},
		},
	)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", response.ID)

Primary response fields:

• response.ID
• response.Status
• response.AreaCode
• response.Comments
• response.CountryCode
• response.CustomerReference

Get Advanced Order

Fetch the current state before updating, deleting, or making control-flow decisions.

client.AdvancedOrders.Get() — GET /advanced_orders/{order_id}

	advancedOrder, err := client.AdvancedOrders.Get(context.Background(), "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", advancedOrder.ID)

Primary response fields:

• advancedOrder.ID
• advancedOrder.Status
• advancedOrder.AreaCode
• advancedOrder.Comments
• advancedOrder.CountryCode
• advancedOrder.CustomerReference

List available phone number blocks

Inspect available resources or choose an existing resource before mutating it.

client.AvailablePhoneNumberBlocks.List() — GET /available_phone_number_blocks

	availablePhoneNumberBlocks, err := client.AvailablePhoneNumberBlocks.List(context.Background(), telnyx.AvailablePhoneNumberBlockListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", availablePhoneNumberBlocks.Data)

Response wrapper:

• items: availablePhoneNumberBlocks.data
• pagination: availablePhoneNumberBlocks.meta

Primary item fields:

• PhoneNumber
• CostInformation
• Features
• Range
• RecordType
• RegionInformation

Retrieve all comments

Inspect available resources or choose an existing resource before mutating it.

client.Comments.List() — GET /comments

	comments, err := client.Comments.List(context.Background(), telnyx.CommentListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", comments.Data)

Response wrapper:

• items: comments.data
• pagination: comments.meta

Primary item fields:

• ID
• Body
• CreatedAt
• UpdatedAt
• CommentRecordID
• CommentRecordType

Additional Operations

Use the core tasks above first. The operations below are indexed here with exact SDK methods and required params; use references/api-details.md for full optional params, response schemas, and lower-frequency webhook payloads. Before using any operation below, read the optional-parameters section and the response-schemas section so you do not guess missing fields.

Other Webhook Events

For exhaustive optional parameters, full response schemas, and complete webhook payloads, see references/api-details.md.