JSON Send Measurements to Server
Streams JSON measurements to a server by POSTing on an interval, with upload error handling. The server can reply with commands (e.g. relay changes).
// Example stream JSON measurements to server
function sendMeasurement(host){
let payload = {
batteryVoltage:14.3,
uptime: now()
};
let res = http.req(host, // url
string(payload), // payload
1000, // timeout
false); // aes encryption
if(res.err === 0 || res.code === 200){
print("Received from server",string(res));
// Could receive messages back from server to change relays etc... See web client example for more info
} else {
print("Upload Error, http status=",res.code);
}
}
while(run()){
sendMeasurement("http://myserver.com/url");
// server will receive a POST request with the json payload specified
waitMS(5000);
}