TypeError Twilio\Rest\Taskrouter\V1\Workspace\TaskInstance::__construct(): Argument #2 ($payload) must be of type array, null given

[manurwx]

Issue Summary

This is the error we've been seeing in our prod environment

TypeError
Twilio\Rest\Taskrouter\V1\Workspace\TaskInstance::__construct(): Argument #2 ($payload) must be of type array, null given, called in /src/vendor/twilio/sdk/src/Twilio/Rest/Taskrouter/V1/Workspace/TaskContext.php on line 85

Suspected cause

The payload (second argument) to TaskInstance constructor is generated by getContent() method in vendor/twilio/sdk/src/Twilio/Http/Response.php:22

all getContent() method does is to call json_decode() and according to PHP docs the only instances where it returns null is if it cannot decode the json string or max depth (default to 512) gets exceeded.
Either way seems like the SDK is not handling this edge case causing a TypeError exception when it happens.

Exception/Log

TypeError: Twilio\Rest\Taskrouter\V1\Workspace\TaskInstance::__construct(): Argument #2 ($payload) must be of type array, null given, called in /src/vendor/twilio/sdk/src/Twilio/Rest/Taskrouter/V1/Workspace/TaskContext.php on line 85
#11 /vendor/twilio/sdk/src/Twilio/Rest/Taskrouter/V1/Workspace/TaskInstance.php(54): Twilio\Rest\Taskrouter\V1\Workspace\TaskInstance::__construct
#10 /vendor/twilio/sdk/src/Twilio/Rest/Taskrouter/V1/Workspace/TaskContext.php(85): Twilio\Rest\Taskrouter\V1\Workspace\TaskContext::update
#9 /src/TwilioBundle/Lib/Api/TaskRouter/TasksApi.php(95): TwilioBundle\Lib\Api\TaskRouter\TasksApi::update
#8 /src/TwilioBundle/Service/TaskRouter/Conferences/ConferenceParticipantService.php(408): TwilioBundle\Service\TaskRouter\Conferences\ConferenceParticipantService::updateTask
#7 /src/TwilioBundle/Service/TaskRouter/Conferences/ConferenceParticipantService.php(97): TwilioBundle\Service\TaskRouter\Conferences\ConferenceParticipantService::createWorkerTask
#6 /src/TwilioBundle/Controller/TaskRouter/OutboundCallController.php(63): TwilioBundle\Controller\TaskRouter\OutboundCallController::receiveTaskRequest
#5 /vendor/symfony/http-kernel/HttpKernel.php(163): Symfony\Component\HttpKernel\HttpKernel::handleRaw
#4 /vendor/symfony/http-kernel/HttpKernel.php(75): Symfony\Component\HttpKernel\HttpKernel::handle
#3 /vendor/symfony/http-kernel/Kernel.php(202): Symfony\Component\HttpKernel\Kernel::handle
#2 /vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php(35): Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner::run
#1 /vendor/autoload_runtime.php(35): require_once
#0 /public/index.php(5): null

Technical details:

• twilio-php version: 6.44.4
• php version: 8.1.13

[tiwarishubham635]

Hi @manurwx! Can you please provide your code which you are using so that we can reproduce the error? Thanks!

[manurwx]

Hi @manurwx! Can you please provide your code which you are using so that we can reproduce the error? Thanks!

Hi, we use it in a commercial product so I can't share the code other than this line which triggers the error in our system:

return $this->client->taskrouter->v1->workspaces($this->workspaceSid)->tasks($taskSid)->update($attributes);

This is the error:

TypeError
Twilio\Rest\Taskrouter\V1\Workspace\TaskInstance::__construct(): Argument #2 ($payload) must be of type array, null given, called in /src/vendor/twilio/sdk/src/Twilio/Rest/Taskrouter/V1/Workspace/TaskContext.php on line 85

It's pretty clear that the issue is in the implementation of update() method in vendor/twilio/sdk/src/Twilio/Rest/Taskrouter/V1/Workspace/TaskContext.php
It wrongly assumes that its internal $payload variable is always of array type, where in fact there are instances where it can actually be null. So when $payload happens to be null and it goes on to create a TaskInstance object passing a null payload as parameter it breaks.