Throw ApiException for requests with the user's token too

Requests with the user's token threw a bare ResourceException with a
message like "… for resource [Anikeen\Id\Resources\Order]" and no
error code, while app requests threw ApiException. Both throw
ApiException now: status (also getCode()), Anikeen ID's error code and
message, isNotFound(), isConflict(), isTemporary(). Failed lists throw
CollectionException, now a subclass of ApiException. A request without
a response (connection refused, timeout) throws ApiException with
status 0 instead of a Guzzle exception.

ApiException extends ResourceException, so existing catch blocks keep
working.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CLAUDE.md

@@ -30,13 +30,13 @@ CI (`.github/workflows/tests.yml`) runs PHPUnit on PHP 8.3 and 8.4.
   attributes and break `save()`). Add a new cache property there when a concern caches.
 - `src/Id/Concerns/` – one trait per API area. Traits on `AnikeenId` act as the app/client;
   traits on `Billable` act for one user.
-- `src/Id/Resources/` – `BaseResource` (single object, throws `ResourceException`, or
-  `ConfirmationRequiredException` for `confirmation_required`) and `BaseCollection` (lists,
-  lazily built via `::builder()`).
+- `src/Id/Resources/` – `BaseResource` (single object) and `BaseCollection` (lists, built via
+  `::builder()`). Failed requests throw `ApiException::fromResult()` (`CollectionException` for
+  lists), no response `::unreachable()`, `confirmation_required` a `ConfirmationRequiredException`.
+  All extend `ResourceException`.
 - `src/Id/Resources/App*` – "app" variants that use the app's own client-credentials token
   (`AnikeenId::asApp()`, `Support/AppRequest`) instead of the user's token, for trusted apps.
-  They throw `Exceptions/ApiException` with a stable `error` code and must not send any request
-  until a method is called.
+  They must not send any request until a method is called.
 - `src/Id/Auth/`, `Providers/AnikeenIdServiceProvider.php`, `Http/Middleware/` – the `anikeen`
   guard driver and user provider, JWT validation (`Helpers/JwtParser.php` with the bundled
   `oauth-public*.key`), scope middleware.

README.md

@@ -417,23 +417,37 @@ object through the API when the current state matters. The admin panel can send
 
 ### Errors
 
-Calls with the user's token throw `Anikeen\Id\Exceptions\ResourceException` when Anikeen ID
-rejects them; `getCode()` is the HTTP status (e.g. `422` for invalid data, `404` for an unknown
-ID) and `getMessage()` the reason. App calls (`app*()`) throw its subclass `ApiException`, which
-adds a stable `error` code. Catching `ResourceException` covers both:
+Every failed request throws `Anikeen\Id\Exceptions\ApiException`, with the user's token as
+well as with the app's (`app*()`). It carries:
+
+- `status`: the HTTP status (also `getCode()`), `0` when Anikeen ID could not be reached,
+- `error`: a stable error code when Anikeen ID sent one (e.g. `billing_address_missing`,
+  `already_cancelled`), otherwise `null`,
+- `getMessage()`: Anikeen ID's reason,
+- `isNotFound()` (404), `isConflict()` (409) and `isTemporary()` (no response, 429 or 5xx: retry
+  later).
 
 ```php
-use Anikeen\Id\Exceptions\ResourceException;
+use Anikeen\Id\Exceptions\ApiException;
 
 try {
     $order = $user->orders()->create($attributes);
-} catch (ResourceException $e) {
+} catch (ApiException $e) {
+    if ($e->isTemporary()) {
+        return back()->with('error', 'Anikeen ID is not reachable right now, please try again.');
+    }
+
     report($e);
 
-    return back()->with('error', 'The order could not be created.');
+    return back()->with('error', $e->getMessage());
 }
 ```
 
+Failed lists (`$user->invoices()`, …) throw `CollectionException`, a subclass of `ApiException`.
+`ConfirmationRequiredException` (a third-party app called `checkout()`, see above) stays its own
+type. All of them extend `ResourceException`, so existing `catch (ResourceException $e)` blocks
+keep working.
+
 ### Testing
 
 Develop against staging (`ANIKEEN_ID_MODE=staging`) with an OAuth client registered there.
@@ -700,7 +714,7 @@ $user = $result->shift(); // the object, or the first item of a list
 ```
 
 Resource methods (`$user->orders()`, `$anikeenId->sshKeysByUserId()`, …) return objects and throw
-`ResourceException` instead (see [Errors](#errors)).
+`ApiException` instead (see [Errors](#errors)).
 
 ## Examples
 

README.stub

@@ -417,23 +417,37 @@ object through the API when the current state matters. The admin panel can send
 
 ### Errors
 
-Calls with the user's token throw `Anikeen\Id\Exceptions\ResourceException` when Anikeen ID
-rejects them; `getCode()` is the HTTP status (e.g. `422` for invalid data, `404` for an unknown
-ID) and `getMessage()` the reason. App calls (`app*()`) throw its subclass `ApiException`, which
-adds a stable `error` code. Catching `ResourceException` covers both:
+Every failed request throws `Anikeen\Id\Exceptions\ApiException`, with the user's token as
+well as with the app's (`app*()`). It carries:
+
+- `status`: the HTTP status (also `getCode()`), `0` when Anikeen ID could not be reached,
+- `error`: a stable error code when Anikeen ID sent one (e.g. `billing_address_missing`,
+  `already_cancelled`), otherwise `null`,
+- `getMessage()`: Anikeen ID's reason,
+- `isNotFound()` (404), `isConflict()` (409) and `isTemporary()` (no response, 429 or 5xx: retry
+  later).
 
 ```php
-use Anikeen\Id\Exceptions\ResourceException;
+use Anikeen\Id\Exceptions\ApiException;
 
 try {
     $order = $user->orders()->create($attributes);
-} catch (ResourceException $e) {
+} catch (ApiException $e) {
+    if ($e->isTemporary()) {
+        return back()->with('error', 'Anikeen ID is not reachable right now, please try again.');
+    }
+
     report($e);
 
-    return back()->with('error', 'The order could not be created.');
+    return back()->with('error', $e->getMessage());
 }
 ```
 
+Failed lists (`$user->invoices()`, …) throw `CollectionException`, a subclass of `ApiException`.
+`ConfirmationRequiredException` (a third-party app called `checkout()`, see above) stays its own
+type. All of them extend `ResourceException`, so existing `catch (ResourceException $e)` blocks
+keep working.
+
 ### Testing
 
 Develop against staging (`ANIKEEN_ID_MODE=staging`) with an OAuth client registered there.
@@ -700,7 +714,7 @@ $user = $result->shift(); // the object, or the first item of a list
 ```
 
 Resource methods (`$user->orders()`, `$anikeenId->sshKeysByUserId()`, …) return objects and throw
-`ResourceException` instead (see [Errors](#errors)).
+`ApiException` instead (see [Errors](#errors)).
 
 ## Examples
 

src/Id/Exceptions/ApiException.php

@@ -2,6 +2,7 @@
 
 namespace Anikeen\Id\Exceptions;
 
+use Anikeen\Id\Result;
 use Throwable;
 
 /**
@@ -19,6 +20,30 @@ class ApiException extends ResourceException
         parent::__construct($message, $status, $previous);
     }
 
+    /**
+     * The exception for a failed request: Anikeen ID's message and error code, the HTTP status
+     * (0 when there was no response).
+     */
+    public static function fromResult(Result $result): static
+    {
+        $body = is_object($result->data) ? $result->data : null;
+
+        return new static(
+            rtrim((string) ($body->message ?? $result->error()), '.'),
+            $result->response()?->getStatusCode() ?? 0,
+            $body->error ?? null,
+            $result->exception,
+        );
+    }
+
+    /**
+     * The exception for a request that got no response (network error, timeout).
+     */
+    public static function unreachable(Throwable $previous): static
+    {
+        return new static(sprintf('Anikeen ID is not reachable: %s', $previous->getMessage()), 0, null, $previous);
+    }
+
     public function isNotFound(): bool
     {
         return $this->status === 404;

src/Id/Exceptions/CollectionException.php

@@ -2,10 +2,10 @@
 
 namespace Anikeen\Id\Exceptions;
 
-use Anikeen\Id\Result;
-use Exception;
-
-class CollectionException extends Exception
+/**
+ * A list request failed. Like ApiException it carries the HTTP status (also as getCode()) and
+ * Anikeen ID's error code.
+ */
+class CollectionException extends ApiException
 {
-
-}
+}

src/Id/Resources/BaseCollection.php

@@ -7,6 +7,7 @@ use Anikeen\Id\Exceptions\CollectionException;
 use Anikeen\Id\Helpers\Paginator;
 use Anikeen\Id\Result;
 use Closure;
+use GuzzleHttp\Exception\GuzzleException;
 use GuzzleHttp\Psr7\Response;
 use JsonSerializable;
 use Throwable;
@@ -34,10 +35,15 @@ abstract class BaseCollection implements JsonSerializable
      */
     protected function __construct(callable $callable)
     {
-        $this->result = $callable();
+        try {
+            $this->result = $callable();
+        } catch (GuzzleException $e) {
+            // no response at all (connection refused, timeout)
+            throw CollectionException::unreachable($e);
+        }
 
         if (!$this->result->success()) {
-            throw new CollectionException(sprintf('%s for collection [%s]', rtrim($this->result->data->message, '.'), get_called_class()), $this->result->response->getStatusCode());
+            throw CollectionException::fromResult($this->result);
         }
     }
 

src/Id/Resources/BaseResource.php

@@ -2,9 +2,10 @@
 
 namespace Anikeen\Id\Resources;
 
+use Anikeen\Id\Exceptions\ApiException;
 use Anikeen\Id\Exceptions\ConfirmationRequiredException;
-use Anikeen\Id\Exceptions\ResourceException;
 use Anikeen\Id\Result;
+use GuzzleHttp\Exception\GuzzleException;
 use JsonSerializable;
 
 #[\AllowDynamicProperties]
@@ -13,11 +14,17 @@ abstract class BaseResource implements JsonSerializable
     public Result $result;
 
     /**
-     * @throws ResourceException
+     * @throws ApiException the request failed (status, error code; a ResourceException)
+     * @throws ConfirmationRequiredException the user has to confirm it on Anikeen ID
      */
     public function __construct(callable $callable)
     {
-        $this->result = $callable();
+        try {
+            $this->result = $callable();
+        } catch (GuzzleException $e) {
+            // no response at all (connection refused, timeout)
+            throw ApiException::unreachable($e);
+        }
 
         if (!$this->result->success()) {
             if (($this->result->data->error ?? null) === 'confirmation_required') {
@@ -28,7 +35,7 @@ abstract class BaseResource implements JsonSerializable
                 );
             }
 
-            throw new ResourceException(sprintf('%s for resource [%s]', rtrim($this->result->data->message, '.'), get_called_class()), $this->result->response->getStatusCode());
+            throw ApiException::fromResult($this->result);
         }
 
         foreach ($this->result->data as $key => $value) {

tests/Id/UserApiExceptionsTest.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace Anikeen\Id\Tests;
+
+use Anikeen\Id\Billable;
+use Anikeen\Id\Exceptions\ApiException;
+use Anikeen\Id\Exceptions\CollectionException;
+use Anikeen\Id\Exceptions\ConfirmationRequiredException;
+use Anikeen\Id\Exceptions\ResourceException;
+use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Psr7\Request;
+use Illuminate\Database\Eloquent\Model;
+
+class UserApiExceptionsTest extends TestCase
+{
+    private function user(): Model
+    {
+        $user = new class extends Model {
+            use Billable;
+        };
+        $user->anikeen_id_access_token = 'user-token';
+
+        return $user;
+    }
+
+    public function test_a_refused_request_carries_status_and_error_code(): void
+    {
+        $this->respond(200, ['data' => []]); // orders() loads the list
+        $this->respond(422, ['message' => 'The billing address is missing.', 'error' => 'billing_address_missing']);
+
+        try {
+            $this->user()->orders()->create(['items' => []]);
+            $this->fail('Expected an ApiException.');
+        } catch (ApiException $e) {
+            $this->assertInstanceOf(ResourceException::class, $e, 'existing catch (ResourceException) blocks keep working');
+            $this->assertSame(422, $e->status);
+            $this->assertSame(422, $e->getCode());
+            $this->assertSame('billing_address_missing', $e->error);
+            $this->assertSame('The billing address is missing', $e->getMessage());
+            $this->assertFalse($e->isTemporary());
+        }
+    }
+
+    public function test_an_unknown_id_is_not_found(): void
+    {
+        $this->respond(200, ['data' => []]);
+        $this->respond(404, ['message' => 'Not found.']);
+
+        try {
+            $this->user()->orders()->find('01JMISSING');
+            $this->fail('Expected an ApiException.');
+        } catch (ApiException $e) {
+            $this->assertTrue($e->isNotFound());
+            $this->assertNull($e->error);
+        }
+    }
+
+    public function test_a_failed_list_is_an_api_exception_too(): void
+    {
+        $this->respond(503, ['message' => 'Maintenance.']);
+
+        try {
+            $this->user()->invoices();
+            $this->fail('Expected a CollectionException.');
+        } catch (CollectionException $e) {
+            $this->assertInstanceOf(ApiException::class, $e);
+            $this->assertSame(503, $e->status);
+            $this->assertTrue($e->isTemporary());
+        }
+    }
+
+    public function test_no_response_is_temporary_with_status_zero(): void
+    {
+        $this->respond(200, ['data' => []]);
+        $this->http->append(new ConnectException('Connection refused', new Request('GET', 'v1/orders/01J')));
+
+        try {
+            $this->user()->orders()->find('01J');
+            $this->fail('Expected an ApiException.');
+        } catch (ApiException $e) {
+            $this->assertSame(0, $e->status);
+            $this->assertTrue($e->isTemporary());
+            $this->assertInstanceOf(ConnectException::class, $e->getPrevious());
+        }
+    }
+
+    public function test_confirmation_required_stays_its_own_exception(): void
+    {
+        $this->respond(200, ['data' => []]);
+        $this->respond(200, ['data' => ['id' => '01JORDER', 'status' => 'draft']]);
+        $this->respond(403, ['message' => 'Confirm it on Anikeen ID.', 'error' => 'confirmation_required', 'confirmation_url' => 'https://id.test/confirm/01JORDER']);
+
+        $this->expectException(ConfirmationRequiredException::class);
+
+        $this->user()->orders()->find('01JORDER')->checkout();
+    }
+}