What is JSON in Salesforce?

What is JSON parsing in Salesforce?

Use the JSONParser class methods to parse JSON-encoded content. These methods enable you to parse a JSON-formatted response that’s returned from a call to an external service, such as a web service callout.

What is JSON deserialize in Salesforce?

deserialize(jsonString, apexType)

Deserializes the specified JSON string into an Apex object of the specified type.

How do I parse JSON in Salesforce?

Key Points:

  1. 1). JSON.createParser(jsonString) : Create new Parser.
  2. nextToken() : Locate cursor to next token.
  3. 3). getCurrentToken() : To get the current token value.
  4. 4). getCurrentName() : To get the current field name.
  5. 5). nextValue() :Locate cursor to next value.
  6. 6). getText() : To get the text value of the token.

How does apex handle JSON?

paste the JSON string the space given, give a desirable name and click on the generate button. It generates two classes i.e both class and test class. In the main class where you are making the callout, pass the JSON response obtained to the parse method in the above generated ZomatoLocation. cls apex class as follows.

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What is JSON format?

JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).

How do I read a JSON response in Salesforce?

We can use the JSONParser class methods to parse JSON-encoded content. The methods of JSONParser class enable to parse a JSON-formatted response that’s returned from a call to an external service, such as a web service callout.

What is JSON serialization?

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 (convert string -> object).

What are the streaming API in Salesforce?

Streaming API is your radar. It lets you define events and push notifications to your client app when the events occur. You don’t have to keep an active lookout for data changes or custom notifications—you don’t have to constantly poll Salesforce and make unnecessary API requests.

What are governing limits in Salesforce?

Major Governor Limits

Overview Governor Limit
Total number of SOSL queries issued in Salesforce 20
DML Governor Limits in Salesforce (Total number of issued statements per transaction) 150
Total number of records retrieved by a single SOSL query 2000
Total number of records that were retrieved by SOQL queries 50000

What is JsonToken?

android.util.JsonToken. A structure, name or value type in a JSON-encoded string.

How do I deserialize JSON data in Apex?

deserialize() , you must specify the type of value you expect the JSON to yield, and Apex will attempt to deserialize to that type. JSON. serialize() accepts both Apex collections and objects, in any combination that’s convertible to legal JSON. String jsonString = JSON.

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How do I convert an object to a string in Salesforce?

To convert sObject to String in Apex, below is the simple code. Example: public Account acct = new Account(Name = ‘Test Account’); String objType = String.

What is serialization and Deserialization in Salesforce?

Serialization is a process of converting an apex object into stream of bytes so that it can be transferred over a network or stored in a salesforce record. Deserialization is the exact opposite – which convert bytes of stream into object.

Which class contains the methods to serialize objects manually using code?

The ObjectOutputStream class contains writeObject() method for serializing an Object.

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