Today I stumbled upon a requirement to parse JSON in Apex. I was happy about the fact that I know there is a cool open source library calledJSONObject, that will do all the heavy lifting of JSON parsing and another more cooler native JSON parser is lined up in coming winter'12 release…

Dear Apex developers, who are using HTTP Restful Classes know that testing the callouts is not allowed in Apex. People came up with their own smart ways to handle this restriction.

In my recent project, I came across a requirement to create a base class in a managed package with child extension packages that would extend to add their value to it.

This post is for guys who are planning to release their app on App Exchange and are looking forward to clearing the security review in one shot! This post aggregates all the good links and information you should have in hand.

While fixing security issues for a customer, I came across a very interesting and powerful security API from Salesforce, i.e., Force.com ESAPI. As per the Google code description, this API…

This might be a requirement, if you are developing some complex navigation…

Since the release of the Javascript remoting feature in the Spring’11 release, I was super excited about it and was looking for spare time to play with it. A few days back I read about jQuery templates; that’s an awesome jQuery plugin (soon going to be part of jQuery Min)..

I recently came across this useful and under-documented Apex String API, i.e. String formattedString = String.format(String template, List<String> arguments)

String.format(..) is again based on the Java MessageFormat class; its documentation says: Treat the current string as a pattern that should be used for substitution in the same manner as apex:outputText.

Retrying web service call failures/exceptions is important because not every exception means it’s the “end of the world." There is always some hope for some exceptions, like Session timeouts or Invalid session IDs. One can always renew the session (if credentials are available) and make those failing web service calls work again.

I have been speaking a lot about using WSC above Apache Axis, but today I found an interesting old post about HTTP compression with Apache Axis. This is interesting because it can boost performance for those who are integrating with Salesforce web services using Java Apache Axis.

One can get errors like: No such column ‘SmallPhotoUrl’ on entity ‘Name’ OR No such ‘column CompanyName’ on entity ‘Name’. On an SOQL statement like:

Force.com sites redirects to “Authorization Required” page in case something goes wrong behind the scenes, for ex…

Apex static is always confusing for me. I am from a Java background, so it took a while for me to really understand the differences between Apex and Java static. This post discusses apex controller static behavior, i.e., in relation to Visualforce only.

I stumbled upon a strange Batch Apex issue today. My batch job was going well in a few SFDC orgs; after deploying the same to a new org it stopped working completely. I just see, “First error: Attempt to de-reference a null object” in debug and apex logs. 

You must be stuck up with Apex, when sorting is required on instances of user defined classes and pre-loaded Sobjects. Unfortunately standard Apex API just gives a method List.sort(), that just works with primitive data types…

I am working and doing R&D with the Salesforce WSC library to get Tolerado ported to it. Most of the pieces worked well, but I was initially stuck with Metadata WSDL issues. I faced the following two major blockers: Metadata WSDL Compilation Issue and Metadata Connector Config Issue.

Sometimes while working with Salesforce Web Service APIs, we get a “No Operation Available for Request” error. This error comes because the “Web service ENDPOINT URL” is not correct. In my case, this error came when I was trying to use “apex.wsdl” for executing Apex test cases via my Java code.

501 error comes when we cross the governor limit, that is, “total number of records retrieved by SOQL queries”. As per this limit, a single Apex testMethod can only retrieve 500 rows in all SOQL calls.

Singleton is pretty popular and one of the most simple design patterns. On many occasions, we want an Apex class to have a single instance only. Fortunately, it's possible and pretty easy with Apex. There can be different strategies to implement singleton in Apex (inspired by my Java days learning). Before that, the following are the prerequisites to make a class Singleton.