Web Service, Products, Internal Error 500

[chillermiller]

Hello everyone,
 
i openend the shop xml files typing in my browser http://localhost/api/. I can access the customers section, but i cannot access the products or categories section.
When i activate the debug mode in config/defines.inc.php the following error message comes up:

Fatal error: Uncaught Error: Function name must be a string in C:\xampp\htdocs\classes\webservice\WebserviceOutputBuilder.php:542
Stack trace:
#0 C:\xampp\htdocs\classes\webservice\WebserviceOutputBuilder.php(481): WebserviceOutputBuilderCore->renderField(Object(Product), Array, 'id_default_imag...', Array, 0)
#1 C:\xampp\htdocs\classes\webservice\WebserviceOutputBuilder.php(385): WebserviceOutputBuilderCore->renderEntity(Object(Product), 0)
#2 C:\xampp\htdocs\classes\webservice\WebserviceRequest.php(1694): WebserviceOutputBuilderCore->getContent(Array, NULL, 'full', 0, 2)
#3 C:\xampp\htdocs\classes\webservice\WebserviceRequest.php(560): WebserviceRequestCore->returnOutput()
#4 C:\xampp\htdocs\webservice\dispatcher.php(87): WebserviceRequestCore->fetch('E1UP4CKKTLKNZ2N...', 'GET', 'products/2', Array, false, NULL)
#5 {main}
  thrown in C:\xampp\htdocs\classes\webservice\WebserviceOutputBuilder.php on line 542

I admit that i just changed the supported versions on line 49 in PSWebServiceLibrary.php to  

 const psCompatibleVersionsMax = '1.6.1.4';

because that is my current version. Some tries accessing the webservice with a token in php resulted in the same error code.

 

How can I fix this problem?

May I downgrade to 1.6.1.3?

 

Kind regards,

Chris

[chillermiller]

Problem resolved by downgrading to 1.6.1.3.

[Laeti-laeti]

Hi, I am in the same situation.

Well, I may as well downgrade too then...

It's a shame

Thanks for sharing

[sennevb]

same error here, someone found a solution too, except downgrading??

[ziostanko]

Same error here with 1.6.1.4

 

does anyone fixed it?

 

i don't want to downgrade...

[ziostanko]

i have this error only with php 7.0.3

if i switch to php 5.5.9 work good

[maewCP]

According to https://github.com/PrestaShop/PrestaShop/pull/5161

 

in /classes/webservice/WebserviceOutputBuilder.php

 

change line 542 from this

$field['value'] = $object->$field['getter']();

to this

$field['value'] = $object->{$field['getter']}();

Edited March 31, 2016 by maewCP (see edit history)

[ziostanko]

That solve the issue with get requests...

 

When i perform add i get this:

 Array to string conversion (....httpdocs/classes/webservice/WebserviceRequest.php, line 1431)

 

 

and you can solve it changing line 1431 to:

 

$object->{$fieldProperties['setter']}((string)$attributes->$fieldName);

 

according to

https://github.com/PrestaShop/PrestaShop/blob/a2359f6f753d814311b98e1d273f0262659c5e43/classes/webservice/WebserviceRequest.php