/telnyx-oauth-java

name: telnyx-oauth-java
description: >-
  Implement OAuth 2.0 authentication flows for Telnyx API access. This skill
  provides Java SDK examples.
metadata:
  author: telnyx
  product: oauth
  language: java
  generated_by: telnyx-openapi-pipeline

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

Telnyx Oauth - Java

Installation

<!-- Maven -->
<dependency>
    <groupId>com.telnyx.sdk</groupId>
    <artifactId>telnyx</artifactId>
    <version>6.95.0</version>
</dependency>

// Gradle
implementation("com.telnyx.sdk:telnyx:6.95.0")

Setup

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

// fromEnv() reads TELNYX_API_KEY and TELNYX_PUBLIC_KEY (the public key is required for
// client.webhooks().unwrap() — webhook verification)
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, then retry the request (bounded exponential backoff)
        Thread.sleep(1000);
        // ...retry the call here (give up after a few attempts)
    }
    throw e; // Re-throw: 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:** List methods return a page. Use `.autoPager()` for automatic iteration: `for (var item : page.autoPager()) { ... }`. For manual control, use `.hasNextPage()` and `.nextPage()`.

Authorization server metadata

OAuth 2.0 Authorization Server Metadata (RFC 8414)

`GET /.well-known/oauth-authorization-server`

import com.telnyx.sdk.models.wellknown.WellKnownRetrieveAuthorizationServerMetadataParams;
import com.telnyx.sdk.models.wellknown.WellKnownRetrieveAuthorizationServerMetadataResponse;

WellKnownRetrieveAuthorizationServerMetadataResponse response = client.wellKnown().retrieveAuthorizationServerMetadata();

Returns: `authorization_endpoint` (uri), `code_challenge_methods_supported` (array[string]), `grant_types_supported` (array[string]), `introspection_endpoint` (uri), `issuer` (uri), `jwks_uri` (uri), `registration_endpoint` (uri), `response_types_supported` (array[string]), `scopes_supported` (array[string]), `token_endpoint` (uri), `token_endpoint_auth_methods_supported` (array[string])

Protected resource metadata

OAuth 2.0 Protected Resource Metadata for resource discovery

`GET /.well-known/oauth-protected-resource`

import com.telnyx.sdk.models.wellknown.WellKnownRetrieveProtectedResourceMetadataParams;
import com.telnyx.sdk.models.wellknown.WellKnownRetrieveProtectedResourceMetadataResponse;

WellKnownRetrieveProtectedResourceMetadataResponse response = client.wellKnown().retrieveProtectedResourceMetadata();

Returns: `authorization_servers` (array[string]), `resource` (uri)

OAuth authorization endpoint

OAuth 2.0 authorization endpoint for the authorization code flow

`GET /oauth/authorize`

import com.telnyx.sdk.models.oauth.OAuthRetrieveAuthorizeParams;

OAuthRetrieveAuthorizeParams params = OAuthRetrieveAuthorizeParams.builder()
    .clientId("550e8400-e29b-41d4-a716-446655440000")
    .redirectUri("https://example.com")
    .responseType(OAuthRetrieveAuthorizeParams.ResponseType.CODE)
    .build();
client.oauth().retrieveAuthorize(params);

Get OAuth consent token

Retrieve details about an OAuth consent token

`GET /oauth/consent/{consent_token}`

import com.telnyx.sdk.models.oauth.OAuthRetrieveParams;
import com.telnyx.sdk.models.oauth.OAuthRetrieveResponse;

OAuthRetrieveResponse oauth = client.oauth().retrieve("consent_token");

Returns: `client_id` (string), `logo_uri` (uri), `name` (string), `policy_uri` (uri), `redirect_uri` (uri), `requested_scopes` (array[object]), `tos_uri` (uri), `verified` (boolean)

Create OAuth grant

Creates an OAuth authorization grant and returns the grant response for completing the authorization flow.

`POST /oauth/grants` — Required: `allowed`, `consent_token`

import com.telnyx.sdk.models.oauth.OAuthGrantsParams;
import com.telnyx.sdk.models.oauth.OAuthGrantsResponse;

OAuthGrantsParams params = OAuthGrantsParams.builder()
    .allowed(true)
    .consentToken("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.example")
    .build();
OAuthGrantsResponse response = client.oauth().grants(params);

Returns: `redirect_uri` (uri)

Token introspection

Introspect an OAuth access token to check its validity and metadata

`POST /oauth/introspect` — Required: `token`

import com.telnyx.sdk.models.oauth.OAuthIntrospectParams;
import com.telnyx.sdk.models.oauth.OAuthIntrospectResponse;

OAuthIntrospectParams params = OAuthIntrospectParams.builder()
    .token("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.example")
    .build();
OAuthIntrospectResponse response = client.oauth().introspect(params);

Returns: `active` (boolean), `aud` (string), `client_id` (string), `exp` (integer), `iat` (integer), `iss` (string), `scope` (string)

JSON Web Key Set

Retrieve the JSON Web Key Set for token verification

`GET /oauth/jwks`

import com.telnyx.sdk.models.oauth.OAuthRetrieveJwksParams;
import com.telnyx.sdk.models.oauth.OAuthRetrieveJwksResponse;

OAuthRetr