Index not working

Question

I have an HttpResponse type pv holding following value: 
 
 [statusLine=HTTP/1.1 500 Internal Server Error, statusCode=500, headers=[object Object], contentType=application/json, body={"type":" "title":"Internal">www.w3.org/.../rfc2616-sec10.html","title":"Internal Server Error","status":500,"detail":"Error connecting to underlying system","instance":"XXXXX/error/uuid:XXXXxXXXXXXXXXX"}] 
 I am passing it to and expression rule and indexing "body" into a local variable responseBody , which is wprking ok, However when I try to index any of the attributes within body , such as "title", "type","detail","status", Index is not working and returning default value. I am trying as follows: 
 errorDescription: if(ri!success,"",if(a!isNullOrEmpty(local!responseBody),"",index(local!responseBody,"type",""))), 
 Checked runtime type of local!responseBody and it is AnyType, 
 
 Any thoughts suggestions? PS HttpResponse is captures in AC!Result in an Integration node in PM. 
 This is quite strange , any inputs would be appreciated.

Stefan Helzle · Accepted Answer

The data you posted shows clearly that the JSON is just a string. You can see that by the curly brackets. Appian uses angular brackets to visualize data structures. I highly recommend to add a map type parameter to your process model and use a!fromJson to pass the data. Then you indexing will work.

rajesh pamisetty · Answer

Hi gpandey, 
 
 body is coming back on json format, try to wrap body in a!fromJson, so that you can use index 
 and also i see improper " in the body. please make sure from service side you are getting response in proper Json format