I have a soap service deployed on wso2 apim 4.0.0. While working with the api I randomly (rarely) get an error - "Content is not allowed in prolog". Is there any component of the configuration to be tuned to overcome this issue? Another version of the cause of this error, I found out in the article, this might be caused by a consumer that is not able to properly invoke the api. Any hint to find out the root of the problem is appreciated.
Enable wire logs[1] and check whether the backend is sending a corrupted response while you are reproducing the issue.
A corrupted response means such as a chunked response but, the Content-Length header is available in the response.
You can compare the wire logs for both the happy path and the issue scenario.
[1] https://apim.docs.wso2.com/en/latest/integrate/develop/using-wire-logs/
I'm currently using WSO2 ESB 4.8.1 and I want to know whether it is possible to delay the ESB response from within the service.
That is, if a response arrives from the relevant backend, output it from the ESB service with a delay of a certain time.(example 60000ms)
Thanks in advance.
Have you tried adding a thread sleep [1].
<script language="js">java.lang.Thread.sleep(5000);</script>
[1]-http://sanjeewamalalgoda.blogspot.com/2013/11/how-to-add-sleep-interval-or-delay.html
I'm trying to use the REST API for BPMN following the documentation, but even the most basic requests such as
https://localhost:9443/bpmn/repository/deployments
or
https://localhost:9443/bpmn/repository/process-definitions
return the following error
{"statusCode":400,"errorMessage":"javax.ws.rs.InternalServerErrorException.validate(Ljavax/ws/rs/core/Response;Ljavax/ws/rs/core/Response$Status;)Ljavax/ws/rs/core/Response;"}
I'm using BPS server 3.5.1 with Oracle JDK 1.8.0_77, as it was downloaded, with the only addition of a BPMN process to test its dashboard. The service is run as root (via sudo)
What can be done to fix this?
Thanks
I tried it on postman and it works perfectly. Please choose the correct request type (GET, POST, PUT or DELETE), if not the following error will be thrown on the server side:
javax.ws.rs.ClientErrorException.validate(Ljavax/ws/rs/core/Response;Ljavax/ws/rs/core/Response$Status$Family;)Ljavax/ws/rs/core/Response;
A REST API has been defined ESB. What we have observed is if the json format (invalid json),
the request is hanging and the server doesn't give any response. Ideally it should throw some
error at least and it should not hang.
I had the same situation in WSO2 4.8.1. Try to change JsonStreamBuilder in your axis2.xml to JsonBuilder from (org.apache.synapse.commons.json) or use your own implementation.
I am configuring our API Manager, but running into troubles authenticating via OAuth, seems to be an issue with the API Key Manager. I haven't dug into it yet, but does this come with the API Manager (as I have assumed) or is this a separate installation?
I had the same issue when using the wso2 api manager on a Amazon hosted machine, turn out that Thrift was not working correctly because some problem with multicasting and broadcasting.
What I did to get it working was to switch from ThriftClient to WSClient. If you have a huge amount of requests coming in then Thrift is the recommended solution from wso2 but in any "normal" case you will not have any differences between thrift and WS.
Here is how you switch:
Shut down the API Manager
Open up <api manager install dir>\repository\conf\api-manager.xml
Find ThriftClient
Change this to
<KeyValidatorClientType>WSClient</KeyValidatorClientType>
Start the API Manager
You may get some Warnings while starting up but, try it before you jump to the conclusion that it doesn't work.
Hope it helps!
you can use APIM manager product in a distributed setup as keymanger,gateway,store,publisher..but all functionality come in a single distribution.. ..
Go through the documentation for further guides
I was facing the same issue. Everything started when I created my own jks in order to use SSL without a self-signed certificate. I successfully created the jks and changed it in the carbon file. When I started the server, everything seemed ok; but when I used SOAPUI to test an API call, I got this (in the logs of the api manager):
APIAuthenticationHandler API authentication failure due to Unclassified Authentication Failure
I started digging what was the problem by enabling Debug level in the log4j.properties file, and then tried again a tested with SOAPUI and I got:
APISecurityException: Could not connect to <my api ip address> on port 10397
Then, I read the comment of OneMuppet and I checked that file and I found that the Thrift config has a host option, so I uncommented it:
<KeyValidatorClientType>ThriftClient</KeyValidatorClientType>
<ThriftClientPort>10397</ThriftClientPort>
<ThriftClientConnectionTimeOut>10000</ThriftClientConnectionTimeOut>
<ThriftServerPort>10397</ThriftServerPort>
This Line --> <ThriftServerHost>localhost</ThriftServerHost>
<EnableThriftServer>true</EnableThriftServer>
Save, restarted the server and everything start working correctly.
I got the same below issue after my installation, when i try to invoke the api service it is throwing below error:
900900 Unclassified Authentication Failure Error while accessing backend services for API key validation
After some random checks i have seen the axis2.xml file in /repository/conf/axis2 there it is refering a differnt ip's instead. I change these ip's to my local ip and restarted. The issue is resolved now.
I was facing the same issue. when I was trying to setup API Manager as an API Gateway in a different machine as per the steps given here,
https://docs.wso2.com/display/AM250/Publish+through+Multiple+API+Gateways
Once the setup is done and when I am trying to use this gateway URL, I was getting the below response,
{"fault":{"code":900900,"message":"Unclassified Authentication Failure","description":"Error while accessing backend services for API key validation"}}
After changing the KeyValidatorClientType value to WSClient from ThriftClient on the <api manager install dir>\repository\conf\api-manager.xml
It started working fine. And I was able to get the expected response.
If you changed the admin password, then you also have to update the repository/conf/api-manager.xml file with the new password. The 2 places I have changed (so far) are:
<AuthManager>
and
<APIKeyManager>
but there are other admin usernames in that file. No doubt, I'll get to them....