zOMGdev/cppcms: https://github.com/artyom-beilis/cppcms.git

examples/json_rpc/index.html

49 строк1 KB

Artyom Beilis

Added better JSON-RPC example

13 сен 2011, 13:02

13 сен 2011, 13:026769a9e

<html>
<body>
<script type="text/javascript">
function call() {
	
	var xhr = new XMLHttpRequest();
	xhr.open("post", '/rpc');
	// Required by JSON-RPC over HTTP
	xhr.setRequestHeader("Content-Type","application/json");

	// It is better to use real formatter like JSON.js
	var x=parseInt(document.getElementById('x').value);
	var y=parseInt(document.getElementById('y').value);
	var request = '{"method":"div","params":[' + x + ',' + y +'],"id":1}';

	xhr.onreadystatechange = function() {
		if (xhr.readyState === 4) {
			var res;
			if(xhr.status === 200) {
				// Don't call eval in real code use some parser
				var result = eval('(' + xhr.responseText + ')');
				if(result.error==null) {
					res = result.result;
				}
				else {
					res = result.error;
				}
			}
			else {
				res = 'Invalid Status ' + xhr.status;
			}
			document.getElementById('result').innerHTML = res;
		}
	}
	xhr.send(request); 
	return false;
}
</script>
<p><a href="usingrpc.html">Using jsonrpc.js</a></p>
<form onsubmit="return call();">
<p>
<input type="text" id="x" />
<input type="submit" value="/" />
<input type="text" id="y" /> = 
<span id="result"></span>
</p>
</form>
</body>
</html>