CA ArcotID OTP Client Installation Guide › Introduction › Preparing to Install ArcotID OTP Desktop Client › Adding JSONP Support

Adding JSONP Support

The provisioning application that issues ArcotID OTP credentials to the end user must support JavaScript Object Notation with Padding (JSONP) responses. If you are using Arcot Authentication Flow Manager (AFM) 2.2.8 in your middleware, then this feature is supported by default. Otherwise, you must add JSONP support in your middleware, as discussed in this section.

The ArcotID OTP Desktop Client in its HTTP requests indicates that a JSONP format response is required by including the jsonp parameter in the query string. The value of jsonp is the callback name used in the JSONP response. If jsonp is used, then the data must be returned in JSONP format, instead of standard XML.

A typical JSONP response is as follows:

callback({"XML": "xml"});

In the snippet above:

• callback is the jsonp parameter value.
• xml is the typical XML response. If you have any quotes in the response, then ensure that you escape them appropriately.

Sample Request

https://otp.arcot.com/otp/cprov?jsonp=jsonpCallback&reqtype=softsync&version=2.0&uid=HOTP&uids=00&language=en&device=desktop&ctr=8&opt=134642&_=1335205997302

Sample Response

jsonpCallback({"XML": "<?xml version=\"1.0\" encoding=\"UTF-8\" ?><response xmlns=\"http://xs.arcot.com/ArcotOTPProtocolSvc/2.0\"><status>success</status><syncvalue>0000</syncvalue></response>"});