Description: A path parameter is a variable part of the URL used to identify a specific resource within a web application. In the context of REST APIs, these parameters allow developers to access concrete resources, such as a user or a product, through a URL structure that includes unique identifiers. For example, in a URL like ‘https://api.example.com/users/123’, the ‘123’ is a path parameter that refers to a specific user. In GraphQL, although the approach is different, path parameters can be used to define the queries and mutations performed on resources. In modern web development frameworks, path parameters are fundamental for navigation and state management within applications, allowing different components to respond to changes in the URL and display dynamic content based on those parameters. In summary, path parameters are essential for identifying and manipulating resources in modern web applications, facilitating interaction between the client and server.
