I have created a web service based on
http://blogs.msdn.com/b/endpoint/archive/2010/01/06/introducing-wcf-webhttp-services-in-net-4.aspx
i am trying to add an error hadler based on
http://www.codeproject.com/KB/WCF/WCFErrorHandling.aspx
I have given
In web.config such that i am getting
result of a [OperationContract]
either as xml or as Json based on the request content type header.
But when an error occurs the error is returned only as XML
It is not returning error as JSON
Wat can i do to get error as JSON?
You need to implement IErrorHandler and write a ProvideFault method to output as WebContentFormat.Json
you can get all the details of how to do it here:
http://blog.manglar.com/how-to-provide-custom-json-exceptions-from-as-wcf-service/
http://blog.wadolabs.com/2009/03/wcf-exception-handling-with-ierrorhandler/
Related
We are facing an issue while sending json data to an external api using CL_HTTP_CLIENT.
The JSON data is produced using '/ui2/cl_json=>serialize( data = ls_body compress = abap_true pretty_name = /ui2/cl_json=>pretty_mode-camel_case )' .
when sending this JSON as data the the external api returns status 400 with response as
{ "errorCode": "INVALID_REQUEST_BODY", "message": "The request body is missing or improperly formatted. Unexpected character encountered while parsing value: \u001f. Path '', line 0, position 0." } .
we also stringyfied this JSON Data in backend as it might be due to parsing error but it didnt work.
The same stringyfied data tried to send through browser console using ajax and it did worked without any issue.
could any any one tell us how to handle this json object and send this to external api using CL_HTTP_CLIENT.
Note : JSON STRING is deeply nested .
Thanks in advance..
You can use request catcher service for getting SAP output.
Then check your output has valid json.
Check external api with rest tool like postman or SoapUI. Every developer not track guidliness may be external api has limitations.
The issue was with the unicodes in the string.
these were not accepted by the external api so removed from the string and sent to api and it did worked.
Thanks for You suggestion.
Hi i am new to API connect ... i have a use case where i have to merge responses coming from two endpoints in XML format based on certain conditions.
My flow in the assemble section is like this
1) INVOKE
(i make my
first service call
and capture the response
in a custom 'Response
object varibale' -XMLResponse1
2) INVOKE
(i make my
second service call
and here i am not using any
custom 'Response object varibale'
Instead i am using apim.getvaribale('message.body') to get the response
3)GATEWAYSCRIPT
Here i want to write my script for parsing the xml and merging the two responses
and send back the merged response to the consumer
I observed that the xml response is not getting captured in a custom Response object variable when i try to capture it like below
var test1= apim.getvariable('XMLResponse1');
test1.item(0).childNodes
it throws me an exception like this
test1.item is not a function
now for the second response like below where i am not capturing the response in a custom Response object variable it works well
var test2= apim.getvariable('message.body');
My question:
1)How do i capture the xml responses in a custom Response object variable?
2)How can i parse the response into a javascript object? are there any libraries supported in api connect?
Below is the samples found from IBM community. Hope this may help you.
**** Sample XML ****
<Routing>
<partner name="Partner A" key="1">
<from_ID>PartnerA-KEY1-INT</from_ID>
<to_ID>PartnerA-KEY1-EXT</to_ID>
<destination>PartnerA-KEY1-DESTINATION</destination>
</partner>
<partner name="Partner B" key="2">
<from_ID>PartnerB-KEY2-INT</from_ID>
<to_ID>PartnerB-KEY2-EXT</to_ID>
<destination>PartnerB-KEY2-DESTINATION</destination>
</partner>
<partner name="Partner C" key="3">
<from_ID>PartnerC-KEY3-INT</from_ID>
<to_ID>PartnerC-KEY3-EXT</to_ID>
<destination>PartnerC-KEY3-DESTINATION</destination>
</partner>
</Routing>
**** Corresponing Gateway Script *****
var response = apim.getvariable('XMLResponse1.body');
var objType = response.item(0);
var string = objType.getElementsByTagName("partner").item(0).getElementsByTagName("from_ID").item(0).textContent;
output ---> string = PartnerA-KEY1-INT
Why do you want to merge them in a GatewayScript node??
You could merge them in a mapping node, in wich you have 2 variables as input (refered to the output objects of your invokes) and one XML object as output...
If you have to apply some conditions or comparisons, you could do them in the code part of the mapping nodes
I'm following DeserializeErrorBody.java as a guide
When I use Converter<ResponseBody, Error> errorConverter, Error being a POJO class for my errors, I would get an EOFException trying to do errorConverter.convert(response.errorBody()); with the log being:java.io.EOFException: End of input at line 1 column 1 path$...
If I were to log erroBody.string() it would print the error that the server sends {"message":"Incorrect user or password"}
Moreover the error code at response.code() is 401 and the response.body() is null
Why do I get this error if the body is not null?
I was using Observable<ResponseBody> for the Retrofit interface, like I would use Call<ResponseBody> to check only response.isSuccessful().
Turns out I need to use Observable<Response<Void>> to skip the deserialization of an empty body which causes the EOFException.
I am getting response for my web-service like this when I run it in browser: IN.Tags.Share.handleCount({"count":5,"fCnt":"5","fCntPlusOne":"6","url":"http:\\myWebService?postid=24"});
But when I use afnetworking code to get response it gives error like:
Domain=NSCocoaErrorDomain Code=3840 "JSON text did not start with array or object and option to allow fragments not set.
how can I get response like only :
({"count":5,"fCnt":"5","fCntPlusOne":"6","url":"http:\\myWebService?postid=24"})
I've read this example http://msdn.microsoft.com/en-us/library/ee476510.aspx about dynamic responses in wcf.
The sample on the bottom fit my goal pretty well. This is what i did:
[OperationContract]
[WebGet(UriTemplate = "/salaries({queryString})")]
Message GetSalaryByQuery(string queryString);
and my GetSalaryByQuery-Method:
public Message GetSalaryByQuery(string querystring)
{
if (WebOperationContext.Current.IncomingRequest.Accept == "application/json")
return WebOperationContext.Current.CreateJsonResponse<Result>(Salary.GetSalaryByQueryJson(querystring));
else
return WebOperationContext.Current.CreateAtom10Response(Salary.GetSalaryByQuery(querystring));
}
It is pretty similiar to the example i found.
But its not working however. It says that there is another parameter besides the message. I googled the message-class and it seems to me that its not possible to add an parameter to a message-response.
Is there a way to pass a parameter with the request and get a response with a message object?
Is there another way to get the dynamic response?
Thanks in advance.
I got it to work. I just deleted the Metadata-Enpoint and the behavior. My Webservice provides metadata on its own and therefore doesnt need to have the mex-Metadata defined.