In computer software, JSONPath is a query language for querying values in JSON. The uses of JSONPath include:

• Selecting a specific node in a JSON value
• Retrieving a set of nodes from a JSON value, based on specific criteria
• Navigating through complex JSON values to retrieve the required data.

JSONPath queries are path expressions written as strings, e.g. $.foo.

Example

{
 "name": "John Doe",
 "username": "johndoe",
 "email": "john@example.com"
}

Structure

The entire object is wrapped in { }, which makes it a JSON object.

Inside the object, there are three key-value pairs (also called properties):

• "name": "John Doe" - The key is "name" and the value is "John Doe" (a string).
• "username": "johndoe" -  Key "username", value "johndoe".
• "email": "john@example.com" -  Key "email", value “john@example.com”
   

For flat objects like this, each property is accessed by appending the key name to $ with a dot.