Looking Glass Page Syntax Error !

[shahedfardous]

I am using ubuntu 22.04 LTS. Installed the IXP Manger using the Tutorial on the APNIC Academy page. IXP Manager API is working perfectly with Bird V2 and creating bgp sessions.

I am getting problem while configuring the looking glass. Getting this syntax error message from the laraval.log file.

[2024-05-06 10:48:23] production.ERROR: Syntax error {"userId":1,"exception":"[object] (JsonException(code: 4): Syntax error at /srv/ixpmanager/app/Http/Controllers/Services/LookingGlass.php:214)
[stacktrace]
#0 /srv/ixpmanager/app/Http/Controllers/Services/LookingGlass.php(214): json_decode()
#1 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): IXP\Http\Controllers\Services\LookingGlass->bgpSummary()
#2 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction()
#3 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Route.php(262): Illuminate\Routing\ControllerDispatcher->dispatch()
#4 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Route.php(205): Illuminate\Routing\Route->runController()
#5 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(721): Illuminate\Routing\Route->run()
#6 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}()
#7 /srv/ixpmanager/app/Http/Middleware/Services/LookingGlass.php(139): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#8 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): IXP\Http\Middleware\Services\LookingGlass->handle()
#9 /srv/ixpmanager/app/Http/Middleware/ControllerEnabled.php(94): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#10 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): IXP\Http\Middleware\ControllerEnabled->handle()
#11 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#12 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\SubstituteBindings->handle()
#13 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#14 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle()
#15 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#16 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\View\Middleware\ShareErrorsFromSession->handle()
#17 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#18 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest()
#19 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Session\Middleware\StartSession->handle()
#20 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#21 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle()
#22 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#23 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\EncryptCookies->handle()
#24 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#25 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(723): Illuminate\Pipeline\Pipeline->then()
#26 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(698): Illuminate\Routing\Router->runRouteWithinStack()
#27 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(662): Illuminate\Routing\Router->runRoute()
#28 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(651): Illuminate\Routing\Router->dispatchToRoute()
#29 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(167): Illuminate\Routing\Router->dispatch()
#30 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}()
#31 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#32 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle()
#33 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle()
#34 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#35 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle()
#36 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TrimStrings->handle()
#37 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#38 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle()
#39 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#40 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle()
#41 /srv/ixpmanager/vendor/fruitcake/laravel-cors/src/HandleCors.php(38): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#42 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fruitcake\Cors\HandleCors->handle()
#43 /srv/ixpmanager/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#44 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fideloper\Proxy\TrustProxies->handle()
#45 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#46 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(142): Illuminate\Pipeline\Pipeline->then()
#47 /srv/ixpmanager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(111): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter()
#48 /srv/ixpmanager/public/index.php(89): Illuminate\Foundation\Http\Kernel->handle()
#49 {main}
"}

Need help to resovle it.

[barryo]

The main error here appears to be a json syntax error in the response from the looking glass.

We have some documentation on debugging issues here: https://docs.ixpmanager.org/features/looking-glass/#debugging

Please follow up on the mailing list as this is a request for help and not a bug report. (closing and locking)

[nickhilliard]

this error has come up several times. Would it work to wrap the json_decode() call in an exception handler which delivered an error message to the UI on failure?