This example shows the creation and transmission of a simple HTTP GET request.

httpgetasync.agent.nut

// Set up outgoing request object
local request = http.get(webServiceURL, webServiceHeaders)
 
// Define the response handler
function handleResponse(responseTable) {
    // Called when the imp receives a response from the remote service
    if (responseTable.statuscode == 200) {
        // Remote service has responded with 'OK' so decode
        // the response's body 'responseTable.body' and headers 'responseTable.headers'
        // Code omitted for clarity... 
    } else {
        // Log an error
        server.log("Error response: " + responseTable.statuscode);
    }
}
 
// Send the request asynchronously. This will not block the imp CPU
request.sendasync(handleResponse);

httpgetsync.agent.nut

// Set up outgoing request object
local request = http.get(webServiceURL, webServiceHeaders);
 
// Send the request synchronously. This will block the imp CPU
// until a response has been received from the remote service
local responseTable = request.sendsync();
 
if (responseTable.statuscode == 200) {
    // Remote service has responded with 'OK' so decode
    // the response's body 'responseTable.body' and headers 'responseTable.headers'
    // Code omitted for clarity...
} else {
    // Log an error
    server.log("Error response: " + responseTable.statuscode);
}