Telnyx Iot - Java

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Manage IoT SIM cards, eSIMs, data plans, and wireless connectivity. Use when building IoT/M2M solutions. This skill provides Java SDK examples.

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What this skill tells your AI

The instructions your AI receives, as published by team-telnyx/ai in skills/telnyx-iot-java/SKILL.md and read by ahel’s review.

Installation

<!-- Maven -->
<dependency>
    <groupId>com.telnyx.sdk</groupId>
    <artifactId>telnyx</artifactId>
    <version>6.89.0</version>
</dependency>

// Gradle
implementation("com.telnyx.sdk:telnyx:6.89.0")

Setup

import com.telnyx.sdk.client.TelnyxClient;
import com.telnyx.sdk.client.okhttp.TelnyxOkHttpClient;

TelnyxClient client = TelnyxOkHttpClient.fromEnv();

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 com.telnyx.sdk.errors.TelnyxServiceException;

try {
    var result = client.messages().send(params);
} catch (TelnyxServiceException e) {
    System.err.println("API error " + e.statusCode() + ": " + e.getMessage());
    if (e.statusCode() == 422) {
        System.err.println("Validation error — check required fields and formats");
    } else if (e.statusCode() == 429) {
        // Rate limited — wait and retry with exponential backoff
        Thread.sleep(1000);
    }
}

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: List methods return a page. Use .autoPager() for automatic iteration: for (var item : page.autoPager()) { ... }. For manual control, use .hasNextPage() and .nextPage().

Purchase eSIMs

Purchases and registers the specified amount of eSIMs to the current user's account. If sim_card_group_id is provided, the eSIMs will be associated with that group. Otherwise, the default group for the current user will be used.

POST /actions/purchase/esims — Required: amount

Optional: product (string), sim_card_group_id (uuid), status (enum: enabled, disabled, standby), tags (array[string]), whitelabel_name (string)

import com.telnyx.sdk.models.actions.purchase.PurchaseCreateParams;
import com.telnyx.sdk.models.actions.purchase.PurchaseCreateResponse;

PurchaseCreateParams params = PurchaseCreateParams.builder()
    .amount(10L)
    .build();
PurchaseCreateResponse purchase = client.actions().purchase().create(params);

Returns: actions_in_progress (boolean), authorized_imeis (array | null), created_at (string), current_billing_period_consumed_data (object), data_limit (object), eid (string | null), esim_installation_status (enum: released, disabled), iccid (string), id (uuid), imsi (string), msisdn (string), record_type (string), resources_with_in_progress_actions (array[object]), sim_card_group_id (uuid), status (object), tags (array[string]), type (enum: physical, esim), updated_at (string), version (string), voice_enabled (boolean)

Register SIM cards

Register the SIM cards associated with the provided registration codes to the current user's account. If sim_card_group_id is provided, the SIM cards will be associated with that group. Otherwise, the default group for the current user will be used.

POST /actions/register/sim_cards — Required: registration_codes

Optional: sim_card_group_id (uuid), status (enum: enabled, disabled, standby), tags (array[string])

import com.telnyx.sdk.models.actions.register.RegisterCreateParams;
import com.telnyx.sdk.models.actions.register.RegisterCreateResponse;
import java.util.List;

RegisterCreateParams params = RegisterCreateParams.builder()
    .registrationCodes(List.of(
      "0000000001",
      "0000000002",
      "0000000003"
    ))
    .build();
RegisterCreateResponse register = client.actions().register().create(params);

List bulk SIM card actions

This API lists a paginated collection of bulk SIM card actions. A bulk SIM card action contains details about a collection of individual SIM card actions.

GET /bulk_sim_card_actions

import com.telnyx.sdk.models.bulksimcardactions.BulkSimCardActionListPage;
import com.telnyx.sdk.models.bulksimcardactions.BulkSimCardActionListParams;

BulkSimCardActionListPage page = client.bulkSimCardActions().list();

Returns: action_type (enum: bulk_disable_voice, bulk_enable_voice, bulk_set_public_ips), created_at (string), id (uuid), record_type (string), settings (object), sim_card_actions_summary (array[object]), updated_at (string)

Get bulk SIM card action details

This API fetches information about a bulk SIM card action. A bulk SIM card action contains details about a collection of individual SIM card actions.

GET /bulk_sim_card_actions/{id}

import com.telnyx.sdk.models.bulksimcardactions.BulkSimCardActionRetrieveParams;
import com.telnyx.sdk.models.bulksimcardactions.BulkSimCardActionRetrieveResponse;

BulkSimCardActionRetrieveResponse bulkSimCardAction = client.bulkSimCardActions().retrieve("6a09cdc3-8948-47f0-aa62-74ac943d6c58");

List OTA updates

GET /ota_updates

import com.telnyx.sdk.models.otaupdates.OtaUpdateListPage;
import com.telnyx.sdk.models.otaupdates.OtaUpdateListParams;

OtaUpdateListPage page = client.otaUpdates().list();

Returns: created_at (string), id (uuid), record_type (string), sim_card_id (uuid), status (enum: in-progress, completed, failed), type (enum: sim_card_network_preferences), updated_at (string)

Get OTA update

This API returns the details of an Over the Air (OTA) update.

GET /ota_updates/{id}

import com.telnyx.sdk.models.otaupdates.OtaUpdateRetrieveParams;
import com.telnyx.sdk.models.otaupdates.OtaUpdateRetrieveResponse;

OtaUpdateRetrieveResponse otaUpdate = client.otaUpdates().retrieve("6a09cdc3-8948-47f0-aa62-74ac943d6c58");

Returns: created_at (string), id (uuid), record_type (string), settings (object), sim_card_id (uuid), status (enum: in-progress, completed, failed), type (enum: sim_card_network_preferences), updated_at (string)

List SIM card actions

This API lists a paginated collection of SIM card actions. It enables exploring a collection of existing asynchronous operations using specific filters.

GET /sim_card_actions

import com.telnyx.sdk.models.simcards.actions.ActionListPage;
import com.telnyx.sdk.models.simcards.actions.ActionListParams;

ActionListPage page = client.simCards().actions().list();

Returns: action_type (enum: enable, enable_standby_sim_card, disable, set_standby), created_at (string), id (uuid), record_type (string), settings (object | null), sim_card_id (uuid), status (object), updated_at (string)

Get SIM card action details

This API fetches detailed information about a SIM card action to follow-up on an existing asynchronous operation.

GET /sim_card_actions/{id}

import com.telnyx.sdk.models.simcards.actions.ActionRetrieveParams;
import com.telnyx.sdk.models.simcards.actions.ActionRetrieveResponse;

ActionRetrieveResponse action = client.simCards().actions().retrieve("6a09cdc3-8948-47f0-aa62-74ac943d6c58");

List SIM card data usage notifications

Lists a paginated collection of SIM card data usage notifications. It enables exploring the collection using specific filters.

GET /sim_card_data_usage_notifications

import com.telnyx.sdk.models.simcarddatausagenotifications.SimCardDataUsageNotificationListPage;
import com.telnyx.sdk.models.simcarddatausagenotifications.SimCardDataUsageNotificationListParams;

SimCardDataUsageNotificationListPage page = client.simCardDataUsageNotifications().list();