156 lines
4.2 KiB
C++
156 lines
4.2 KiB
C++
/*
|
|
* WebSocketClientSocketIOack.ino
|
|
*
|
|
* Created on: 20.07.2019
|
|
*
|
|
*/
|
|
|
|
#include <Arduino.h>
|
|
|
|
#include <WiFi.h>
|
|
#include <WiFiMulti.h>
|
|
#include <WiFiClientSecure.h>
|
|
|
|
#include <ArduinoJson.h>
|
|
|
|
#include <WebSocketsClient.h>
|
|
#include <SocketIOclient.h>
|
|
|
|
WiFiMulti WiFiMulti;
|
|
SocketIOclient socketIO;
|
|
|
|
#define USE_SERIAL Serial
|
|
|
|
|
|
void socketIOEvent(socketIOmessageType_t type, uint8_t * payload, size_t length) {
|
|
switch(type) {
|
|
case sIOtype_DISCONNECT:
|
|
USE_SERIAL.printf("[IOc] Disconnected!\n");
|
|
break;
|
|
case sIOtype_CONNECT:
|
|
USE_SERIAL.printf("[IOc] Connected to url: %s\n", payload);
|
|
|
|
// join default namespace (no auto join in Socket.IO V3)
|
|
socketIO.send(sIOtype_CONNECT, "/");
|
|
break;
|
|
case sIOtype_EVENT:
|
|
{
|
|
char * sptr = NULL;
|
|
int id = strtol((char *)payload, &sptr, 10);
|
|
USE_SERIAL.printf("[IOc] get event: %s id: %d\n", payload, id);
|
|
if(id) {
|
|
payload = (uint8_t *)sptr;
|
|
}
|
|
DynamicJsonDocument doc(1024);
|
|
DeserializationError error = deserializeJson(doc, payload, length);
|
|
if(error) {
|
|
USE_SERIAL.print(F("deserializeJson() failed: "));
|
|
USE_SERIAL.println(error.c_str());
|
|
return;
|
|
}
|
|
|
|
String eventName = doc[0];
|
|
USE_SERIAL.printf("[IOc] event name: %s\n", eventName.c_str());
|
|
|
|
// Message Includes a ID for a ACK (callback)
|
|
if(id) {
|
|
// creat JSON message for Socket.IO (ack)
|
|
DynamicJsonDocument docOut(1024);
|
|
JsonArray array = docOut.to<JsonArray>();
|
|
|
|
// add payload (parameters) for the ack (callback function)
|
|
JsonObject param1 = array.createNestedObject();
|
|
param1["now"] = millis();
|
|
|
|
// JSON to String (serializion)
|
|
String output;
|
|
output += id;
|
|
serializeJson(docOut, output);
|
|
|
|
// Send event
|
|
socketIO.send(sIOtype_ACK, output);
|
|
}
|
|
}
|
|
break;
|
|
case sIOtype_ACK:
|
|
USE_SERIAL.printf("[IOc] get ack: %u\n", length);
|
|
break;
|
|
case sIOtype_ERROR:
|
|
USE_SERIAL.printf("[IOc] get error: %u\n", length);
|
|
break;
|
|
case sIOtype_BINARY_EVENT:
|
|
USE_SERIAL.printf("[IOc] get binary: %u\n", length);
|
|
break;
|
|
case sIOtype_BINARY_ACK:
|
|
USE_SERIAL.printf("[IOc] get binary ack: %u\n", length);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void setup() {
|
|
//USE_SERIAL.begin(921600);
|
|
USE_SERIAL.begin(115200);
|
|
|
|
//Serial.setDebugOutput(true);
|
|
USE_SERIAL.setDebugOutput(true);
|
|
|
|
USE_SERIAL.println();
|
|
USE_SERIAL.println();
|
|
USE_SERIAL.println();
|
|
|
|
for(uint8_t t = 4; t > 0; t--) {
|
|
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
|
|
USE_SERIAL.flush();
|
|
delay(1000);
|
|
}
|
|
|
|
WiFiMulti.addAP("SSID", "passpasspass");
|
|
|
|
//WiFi.disconnect();
|
|
while(WiFiMulti.run() != WL_CONNECTED) {
|
|
delay(100);
|
|
}
|
|
|
|
String ip = WiFi.localIP().toString();
|
|
USE_SERIAL.printf("[SETUP] WiFi Connected %s\n", ip.c_str());
|
|
|
|
// server address, port and URL
|
|
socketIO.begin("10.11.100.100", 8880, "/socket.io/?EIO=4");
|
|
|
|
// event handler
|
|
socketIO.onEvent(socketIOEvent);
|
|
}
|
|
|
|
unsigned long messageTimestamp = 0;
|
|
void loop() {
|
|
socketIO.loop();
|
|
|
|
uint64_t now = millis();
|
|
|
|
if(now - messageTimestamp > 2000) {
|
|
messageTimestamp = now;
|
|
|
|
// creat JSON message for Socket.IO (event)
|
|
DynamicJsonDocument doc(1024);
|
|
JsonArray array = doc.to<JsonArray>();
|
|
|
|
// add evnet name
|
|
// Hint: socket.on('event_name', ....
|
|
array.add("event_name");
|
|
|
|
// add payload (parameters) for the event
|
|
JsonObject param1 = array.createNestedObject();
|
|
param1["now"] = (uint32_t) now;
|
|
|
|
// JSON to String (serializion)
|
|
String output;
|
|
serializeJson(doc, output);
|
|
|
|
// Send event
|
|
socketIO.sendEVENT(output);
|
|
|
|
// Print JSON for debugging
|
|
USE_SERIAL.println(output);
|
|
}
|
|
}
|