FirebaseArduino: allow mixing stream and non-stream commands

[proppy]

With this change non-streaming operation will stop the stream and
reuse the underlying http client.

Call FirebaseArduino::stream again in order to reuse the stream.

This is similar to what @ed7coyne did in the contrib/modem

/cc @salqadri @kotl

Fixes: #48 #266

[kotl]

I have reviewed this change and it looks good to me. thanks.

[kotl]

Great, this should properly close connection or reuse existing one as well as resume streaming.

[Xmanu12]

Great solution @proppy, thanks for fix it.
Now, my sketch dont generate an exception and not reset when make a Firebase.set() inside a Firebase.stream loop.
However, after I make the Firebase.set() (that works and the new value is correctly store on the FirebaseDB server) I was unable to re-start the streaming listening loop.
Please can you give me an example of how to "Call FirebaseArduino::stream again in order to reuse the stream."
I can not find the correct command. Many thanks.ML

[proppy]

@Xmanu12 did you try calling ::stream again in loop?

[Xmanu12]

thanks for your faster answer @proppy.
Do you mean ?
Firebase.stream("/listening_path");
if I call again, let the stream function inoperative, dont return any value.

[milinddhanke]

As I use Firebase.stream("/listening_path"); at beginning of the void loop every thing is working properly, though I use some non stream commands in loop. Thanks friends.

[ahmedezzatmtc]

please @proppy tell us what do you mean by simple example
another question
why we use stream ? is it to just listen to changes on a specific path and how to read the change?
my code crashes in>>>>> if (stream.available())
thank you for your effort

[milinddhanke]

Hi friends, here is my code, working properly, though I use some non stream commands in loop.
BUT!!!!!
As my internet connection is interrupted firebase stream disconnected, and when internet connection will ok firebase stream will not automatically connected.
I gone through all (latest) comments/changes to reuse HTTPClient.
Please tell me what changes/additions should i made in my program.

#include <FirebaseArduino.h>
#include <ESP8266WiFi.h>
int led = 13;

void setup() {
pinMode(led, OUTPUT);
WiFi.begin("ssid", "pass");
Firebase.begin("abc.firebaseio.com");
Firebase.setInt("abc", 000);
}

void loop() {
Firebase.stream("/abc");

if (Firebase.available()) {
FirebaseObject event = Firebase.readEvent();
String eventType = event.getString("type");
eventType.toLowerCase();

if (eventType == "put") {          
  String path = event.getString("path");
  String data = event.getString("data");
  if (data == "123")
   {digitalWrite(led, HIGH);
    Firebase.setInt("123/out", 111);}
  if (data == "456")
   {digitalWrite(led, LOW);
    Firebase.setInt("456/out", 000);}
   }
  }
 }

[maherahmed]

@milinddhanke the same issue here

[milinddhanke]

Hello friends please help me to resolve my problem