[solved] SOAP return with 500 Error

1

Hello guys,

i want to implement SOAP in my Slim Application. I have a local server where i can get the WSDL.

When i try to submit the URL (http://local.uri.de/api/soap?wsdl=1) via postman, everything works fine an it returns the SOAP schema. Started with:

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions.....

In my application i use SoapClient, and i add the URL and some parameters.

$soapOptions = array(
      'soap_version' => SOAP_1_2,
      'trace' => true,
      'exceptions' => true,
      'cache_wsdl' => WSDL_CACHE_NONE,
      'features' => SOAP_SINGLE_ELEMENT_ARRAYS
);

so it looks like:

new SoapClient($url, $soapOptions);

The Reponse i become is an 500 Error.
{
ā€œstatusCodeā€: 500,
ā€œerrorā€: {
ā€œtypeā€: ā€œSERVER_ERRORā€,
ā€œdescriptionā€: "SOAP-ERROR: Parsing WSDL: Couldnā€™t load from ā€˜http://local.uri.de/api/soap?wsdl=1ā€™ : failed to load external entity "http://local.uri.de/api/soap?wsdl=1"\n"
}
}

I checked SOAP and it was enabled.

Has anyone an idea why WSDL not work? Is there any important CORS settings or server settings?

I try the tool SoapUI and everything works like a charme. So the url is valid. But by using SoapClient in PHP the error above occur.

2

The SoapClient in PHP is a broken tool. Have you tried to send a custom generated XML request using Guzzle as HTTP client?

3

Hello Odan,

thank for the advice! Iā€™m not try Guzzle so far.

Can you make an example for your answer?

Iā€™m not familiar with SOAP and i want to consume the xml file, e.g. at the end i want send data via SOAP

4

You can find the details in the Guzzle docs.

This is just a very basic example to show the concept:

use GuzzleHttp\Client;

$client = new Client(
    [
        'base_uri' => 'https://httpbin.org/',
        'cookies' => false,
        'headers' => [
            'Accept' => 'text/xml; charset=UTF-8',
            'Content-Type' => 'text/xml; charset=UTF-8',
            'User-Agent' => 'SoapHttpClient/1.0',
        ],
    ]
);

// The SOAP content
$xmlBody = '<?xml version="1.0"?><soap:Envelope></soap:Envelope>';

// Send a request
$response = $client->request('POST', 'anything', ['body' => $xmlBody]);

$xmlContent = (string)$response->getBody();

$dom = new DOMDocument('1.0', 'utf-8');
$dom->loadXML($xmlContent);

// Query the DOM with XPath
$xpath = new DOMXpath($dom);
// ...
5

I tried your code snippet and check the guzzle docs. i always get back a 500 error. with this error message

{
    "statusCode": 500,
    "error": {
        "type": "SERVER_ERROR",
        "description": "Client error: `POST http://local.uri.de/api/v2_soap` resulted in a `404 Not Found` response:\n{\n    \"statusCode\": 404,\n    \"error\": {\n        \"type\": \"RESOURCE_NOT_FOUND\",\n        \"description\": \"Not found.\"\n    }\n (truncated...)\n"
    }
}

in postman i see a message for the certifate ā€œUnable to verify the first certificateā€ā€¦ i run my slim application in a docker ddev containerā€¦ mkcert is insert but iā€™m not sure if this enough

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it look like a missing server configuration, but iā€™m not sure. in postman if i try the direct route to wsdl it works

6

For development purpose only itā€™s ok to ignore invalid SSL certificates:

'verify' => false

Please consult the Guzzle documentation for more details.

http://local.uri.de/api/v2_soap`
resulted in a 404 Not Found

This looks like an 404 not found error. So you have to check the URL again.

7

hey odan, thanks for the advice! ssl was not required anymore.

in the meanwhile i found a solution.

on my data server i have to add a RewriteRule to enable API calls.

Now it works with Guzzle and SoapClient as well!

1 Like
8

Just to add another alternative for somebody who could need it.
I have to create a SOAP client to interact with a SAP service and finalised it using ā€œeconea/nusoapā€: ā€œ^0.9.6ā€ in my composer file.
https://packagist.org/packages/econea/nusoap
This is a adaptation for the old nusoap class but it works pretty wood inside my slim3 app under php 7.x