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What is JSON deserialize in Apex?
Deserializes the specified JSON string into an Apex object of the specified type. deserializeUntyped(jsonString) Deserializes the specified JSON string into collections of primitive data types.
What is JSON serialization and deserialization in Apex?
JSON is a format that encodes objects in a string. Serialization means to convert an object into that string, and deserialization is its inverse operation. When transmitting data or storing them in a file, the data are required to be byte strings, but complex objects are seldom in this format.
Why do we use Deserialization?
Deserialization is the reverse process where the byte stream is used to recreate the actual Java object in memory. This mechanism is used to persist the object. The byte stream created is platform independent. So, the object serialized on one platform can be deserialized on a different platform.
Is it possible to use inside a JSON string?
JSON is purely a string with a specified data format — it contains only properties, no methods. JSON can actually take the form of any data type that is valid for inclusion inside JSON, not just arrays or objects. So for example, a single string or number would be valid JSON.
How to deserialize a JSON list in apex?
Assuming that the JSON data is from a List in the first place (as it appears to be) you do not need to define your own class but instead can use the Account object type: Thanks for contributing an answer to Salesforce Stack Exchange!
How to parse JSON string into apex map?
I need to parse a JSON string like this into an APEX Map object, where I only want to go through the objects in the “results” array. How can I do this?
How are JSON objects intermixed with apex classes?
JSON lists map to Apex List objects. JSON objects can map to either Apex classes, with keys mapping to instance variables, or Apex Map objects. Apex classes and collections can be intermixed freely to construct the right data structures for any particular JSON objective.
When to throw an exception in JSON deserialization?
When deserializing JSON content into a custom object or an sObject using Salesforce API version 34.0 or earlier, this method throws a runtime exception when passed extraneous attributes. When deserializing JSON content into an Apex class in any API version, or into an object in API version 35.0 or later, no exception is thrown.