JSON deserializeUntyped using Apex in Salesforce
Sample Code: String strJSON = '{"items":[{"Date Field":"01-01-1999","Prototype Settings":"PS3","Hardware Type":"Type1","Overall Status":"In Progress","Source":"Web"},{"Date Field":"18-05-1999","Prototype Settings":"PS6","Hardware Type":"Type3","Overall Status":"Completed","Source":"Email"}]}'; Map < String, Object > fullMap = ( Map < String, Object > )JSON.deserializeUntyped( strJSON ....