MailchimpGuzzleHttpClient causes 500 error

This issue is happening is Drupal 7 as well, taking down the site when Mailchimp API is having issues. The above patch works, but does not seem like a longterm solution.

Also getting a similar issue. We have a mailchimp form sitting in the footer of the site and when the exception is thrown no page works and the error is shown, essentially taking down the site. Seemed to be only when logged in for some reason. A cache clear fixed the issue. temporarily.

The website encountered an unexpected error. Please try again later.Mailchimp\MailchimpAPIException: 404: Resource Not Found - The requested resource could not be found. in Mailchimp\http\MailchimpGuzzleHttpClient->handleRequest() (line 64 of /srv/bindings/c8c607c098304952a3f6fabf2cfaac8b/code/vendor/thinkshout/mailchimp-api-php/src/http/MailchimpGuzzleHttpClient.php).

GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object) (Line: 203)
GuzzleHttp\Promise\Promise::callHandler(1, Object, Array) (Line: 156)
GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}() (Line: 47)
GuzzleHttp\Promise\TaskQueue->run(1) (Line: 246)
GuzzleHttp\Promise\Promise->invokeWaitFn() (Line: 223)
GuzzleHttp\Promise\Promise->waitIfPending() (Line: 267)
GuzzleHttp\Promise\Promise->invokeWaitList() (Line: 225)
GuzzleHttp\Promise\Promise->waitIfPending() (Line: 62)
GuzzleHttp\Promise\Promise->wait() (Line: 131)
GuzzleHttp\Client->request('GET', 'https://us7.api.mailchimp.com/3.0/lists/c8e802de23/interest-categories/7099265e70/interests', Array) (Line: 50)
Mailchimp\http\MailchimpGuzzleHttpClient->handleRequest('GET', 'https://us7.api.mailchimp.com/3.0/lists/c8e802de23/interest-categories/7099265e70/interests', Array, Array, ) (Line: 289)
Mailchimp\Mailchimp->request('GET', '/lists/c8e802de23/interest-categories/7099265e70/interests', Array, Array) (Line: 91)
Mailchimp\MailchimpLists->getInterests('c8e802de23', '7099265e70', Array) (Line: 1069)
mailchimp_interest_groups_form_elements(Object) (Line: 112)
Drupal\mailchimp_signup\Form\MailchimpSignupPageForm->buildForm(Array, Object)
call_user_func_array(Array, Array) (Line: 519)
Drupal\Core\Form\FormBuilder->retrieveForm('mailchimp_signup_subscribe_block_red_jacket_resorts_special_offer_form', Object) (Line: 276)
Drupal\Core\Form\FormBuilder->buildForm('mailchimp_signup_subscribe_block_red_jacket_resorts_special_offer_form', Object) (Line: 217)
Drupal\Core\Form\FormBuilder->getForm(Object) (Line: 35)
Drupal\mailchimp_signup\Plugin\Block\MailchimpSignupSubscribeBlock->build() (Line: 163)
Drupal\block\BlockViewBuilder::preRender(Array)
call_user_func('Drupal\block\BlockViewBuilder::preRender', Array) (Line: 378)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 195)
Drupal\Core\Render\Renderer->render(Array) (Line: 501)
Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 89)
__TwigTemplate_52eb7eb2887135c7090146659f806f50b44658633a39475d573c742a6501fa2a->doDisplay(Array, Array) (Line: 427)
Twig\Template->displayWithErrorHandling(Array, Array) (Line: 398)
Twig\Template->display(Array) (Line: 85)
__TwigTemplate_4b5af4ea3e1336e6e1c594e996c3c941f56a1c19a09ff96957c3d34a8a8f11ad->doDisplay(Array, Array) (Line: 427)
Twig\Template->displayWithErrorHandling(Array, Array) (Line: 398)
Twig\Template->display(Array, Array) (Line: 60)
__TwigTemplate_009a5c8b18faa6ffbc82805bffebbd12d304beddbb4e9045716a38ba02b8c706->doDisplay(Array, Array) (Line: 427)
Twig\Template->displayWithErrorHandling(Array, Array) (Line: 398)
Twig\Template->display(Array) (Line: 406)
Twig\Template->render(Array) (Line: 64)
twig_render_template('themes/custom/origin/templates/layout/page.html.twig', Array) (Line: 384)
Drupal\Core\Theme\ThemeManager->render('page', Array) (Line: 437)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 195)
Drupal\Core\Render\Renderer->render(Array) (Line: 501)
Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 139)
__TwigTemplate_f5e768a863f5ab13adc5dec821a17d1904f2f555dd21b2309f71c762f4521dd3->doDisplay(Array, Array) (Line: 427)
Twig\Template->displayWithErrorHandling(Array, Array) (Line: 398)
Twig\Template->display(Array) (Line: 406)
Twig\Template->render(Array) (Line: 64)
twig_render_template('themes/custom/origin/templates/layout/html.html.twig', Array) (Line: 384)
Drupal\Core\Theme\ThemeManager->render('html', Array) (Line: 437)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 195)
Drupal\Core\Render\Renderer->render(Array) (Line: 147)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 582)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 148)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object)
call_user_func(Array, Object, 'kernel.view', Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 156)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 693)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Reviewed the patch and successfully applied.

This fix makes sense to me, thanks all!