One of the best tools for sending test requests to a server is Postman, a free plug-in for Chrome. It lets you build HTTP requests and specify the HTTP verbs, form data, headers, and user credentials (Figure 13.13).
Postman is an indispensable tool for exploring an API before you write your server communication code. Download it from the Chrome web store, chrome.google.com/webstore. (Search for “Postman” to find it.)
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