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Remove redundant method header and fix indent

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This commit is contained in:
Martin Becker
2017-07-20 08:21:29 +02:00
parent fcb623ce91
commit d0ab6c4fd1
2 changed files with 47 additions and 48 deletions
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94
examples/WebSocketClientSockJsAndStomp/WebSocketClientSockJsAndStomp.ino
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@ -1,12 +1,12 @@
/*
* WebSocketClientSockJsAndStomp.ino
*
* Example for connecting and maintining a connection with a SockJS+STOMP websocket connection.
* In this example we connect to a Spring application (see https://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html).
*
* Created on: 18.07.2017
* Author: Martin Becker <mgbckr>, Contact: becker@informatik.uni-wuerzburg.de
*/
WebSocketClientSockJsAndStomp.ino
Example for connecting and maintining a connection with a SockJS+STOMP websocket connection.
In this example we connect to a Spring application (see https://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html).
Created on: 18.07.2017
Author: Martin Becker <mgbckr>, Contact: becker@informatik.uni-wuerzburg.de
*/
// PRE
@ -28,7 +28,7 @@ const char* ws_host = "the.host.net";
const int ws_port = 80;
// base URL for SockJS (websocket) connection
// The complete URL will look something like this(cf. http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-36):
// The complete URL will look something like this(cf. http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-36):
// ws://<ws_host>:<ws_port>/<ws_baseurl>/<3digits>/<randomstring>/websocket
// For the default config of Spring's SockJS/STOMP support the default base URL is "/socketentry/".
const char* ws_baseurl = "/socketentry/"; // don't forget leading and trailing "/" !!!
@ -43,7 +43,7 @@ WebSocketsClient webSocket;
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
switch (type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
@ -52,43 +52,43 @@ void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
}
break;
case WStype_TEXT: {
case WStype_TEXT:
{
// #####################
// handle STOMP protocol
// #####################
// #####################
// handle STOMP protocol
// #####################
String text = (char*) payload;
String text = (char*) payload;
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
if (payload[0] == 'h') {
USE_SERIAL.println("Heartbeat!");
} else if (payload[0] == 'o') {
if (payload[0] == 'h') {
// on open connection
char *msg = "[\"CONNECT\\naccept-version:1.1,1.0\\nheart-beat:10000,10000\\n\\n\\u0000\"]";
webSocket.sendTXT(msg);
} else if (text.startsWith("a[\"CONNECTED")) {
USE_SERIAL.println("Heartbeat!");
// subscribe to some channels
char *msg = "[\"SUBSCRIBE\\nid:sub-0\\ndestination:/user/queue/messages\\n\\n\\u0000\"]";
webSocket.sendTXT(msg);
delay(1000);
} else if (payload[0] == 'o') {
// and send a message
// on open connection
char *msg = "[\"CONNECT\\naccept-version:1.1,1.0\\nheart-beat:10000,10000\\n\\n\\u0000\"]";
webSocket.sendTXT(msg);
msg = "[\"SEND\\ndestination:/app/message\\n\\n{\\\"user\\\":\\\"esp\\\",\\\"message\\\":\\\"Hello!\\\"}\\u0000\"]";
webSocket.sendTXT(msg);
delay(1000);
} else if (text.startsWith("a[\"CONNECTED")) {
// subscribe to some channels
char *msg = "[\"SUBSCRIBE\\nid:sub-0\\ndestination:/user/queue/messages\\n\\n\\u0000\"]";
webSocket.sendTXT(msg);
delay(1000);
// and send a message
msg = "[\"SEND\\ndestination:/app/message\\n\\n{\\\"user\\\":\\\"esp\\\",\\\"message\\\":\\\"Hello!\\\"}\\u0000\"]";
webSocket.sendTXT(msg);
delay(1000);
}
break;
}
break;
}
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);
@ -107,7 +107,7 @@ void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
// USE_SERIAL.setDebugOutput(true);
// USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
@ -117,28 +117,28 @@ void setup() {
USE_SERIAL.print("Logging into WLAN: "); Serial.print(wlan_ssid); Serial.print(" ...");
WiFi.mode(WIFI_STA);
WiFi.begin(wlan_ssid, wlan_password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
USE_SERIAL.print(".");
delay(500);
USE_SERIAL.print(".");
}
USE_SERIAL.println(" success.");
USE_SERIAL.print("IP: "); USE_SERIAL.println(WiFi.localIP());
// #####################
// create socket url according to SockJS protocol (cf. http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-36)
// #####################
String socketUrl = ws_baseurl;
socketUrl += random(0,999);
socketUrl += random(0, 999);
socketUrl += "/";
socketUrl += random(0,999999); // should be a random string, but this works (see )
socketUrl += random(0, 999999); // should be a random string, but this works (see )
socketUrl += "/websocket";
// connect to websocket
webSocket.begin(ws_host, ws_port, socketUrl);
webSocket.setExtraHeaders(); // remove "Origin: file://" header because it breaks the connection with Spring's default websocket config
// webSocket.setExtraHeaders("foo: I am so funny\r\nbar: not"); // some headers, in case you feel funny
// webSocket.setExtraHeaders("foo: I am so funny\r\nbar: not"); // some headers, in case you feel funny
webSocket.onEvent(webSocketEvent);
}