/telnyx-verify-go

name: telnyx-verify-go
description: >-
  Look up phone number information (carrier, type, caller name) and verify users
  via SMS/voice OTP. Use for phone verification and data enrichment. This skill
  provides Go SDK examples.
metadata:
  author: telnyx
  product: verify
  language: go
  generated_by: telnyx-openapi-pipeline

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

Telnyx Verify - 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

• **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() }`.

Lookup phone number data

Returns information about the provided phone number.

`GET /number_lookup/{phone_number}`

	numberLookup, err := client.NumberLookup.Get(
		context.Background(),
		"+18665552368",
		telnyx.NumberLookupGetParams{},
	)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberLookup.Data)

Returns: `caller_name` (object), `carrier` (object), `country_code` (string), `fraud` (string | null), `national_format` (string), `phone_number` (string), `portability` (object), `record_type` (string)

List verifications by phone number

Returns a paginated list of verifications associated with the specified phone number.

`GET /verifications/by_phone_number/{phone_number}`

	byPhoneNumbers, err := client.Verifications.ByPhoneNumber.List(context.Background(), "+13035551234")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", byPhoneNumbers.Data)

Returns: `created_at` (string), `custom_code` (string | null), `id` (uuid), `phone_number` (string), `record_type` (enum: verification), `status` (enum: pending, accepted, invalid, expired, error), `timeout_secs` (integer), `type` (enum: sms, call, flashcall, whatsapp), `updated_at` (string), `verify_profile_id` (uuid)

Verify verification code by phone number

Submits a verification code for the specified phone number and Verify profile. The response indicates whether the code was accepted or rejected.

`POST /verifications/by_phone_number/{phone_number}/actions/verify` — Required: `code`, `verify_profile_id`

	verifyVerificationCodeResponse, err := client.Verifications.ByPhoneNumber.Actions.Verify(
		context.Background(),
		"+13035551234",
		telnyx.VerificationByPhoneNumberActionVerifyParams{
			Code:            "17686",
			VerifyProfileID: "12ade33a-21c0-473b-b055-b3c836e1c292",
		},
	)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", verifyVerificationCodeResponse.Data)

Returns: `phone_number` (string), `response_code` (enum: accepted, rejected)

Trigger Call verification

Starts a verification for the specified phone number and delivers its code in a voice call using the selected Verify profile. Returns the pending verification record.

`POST /verifications/call` — Required: `phone_number`, `verify_profile_id`

Optional: `custom_code` (string | null), `extension` (string | null), `timeout_secs` (integer)

	createVerificationResponse, err := client.Verifications.TriggerCall(context.Background(), telnyx.VerificationTriggerCallParams{
		PhoneNumber:     "+13035551234",
		VerifyProfileID: "12ade33a-21c0-473b-b055-b3c836e1c292",
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", createVerificationResponse.Data)

Returns: `created_at` (string), `custom_code` (string | null), `id` (uuid), `phone_number` (string), `record_type` (enum: verification), `status` (enum: pending, accepted, invalid, expired, error), `timeout_secs` (integer), `type` (enum: sms, call, flashcall, whatsapp), `updated_at` (string), `verify_profile_id` (uuid)

Trigger Flash call verification

Starts a verification for the specified phone number and places a brief call with the code embedded in the caller ID. Returns the pending verification record.

`POST /verifications/flashcall` — Required: `phone_number`, `verify_profile_id`

Optional: `timeout_secs` (integer)

	createVerificationResponse, err := client.Verifications.TriggerFlashcall(context.Background(), telnyx.VerificationTriggerFlashcallParams{
		PhoneNumber:     "+13035551234",
		VerifyProfileID: "12ade33a-21c0-473b-b055-b3c836e1c292",
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", createVerificationResponse.Data)

Returns: `created_at` (string),