I am using Esp8266 Wifi modular (12-E) for controlling a led through the access of wifi/webserver. I have written code in Arduino ide taking various references from the google.In the code, I didn't understand the client.flush(), why we are using this method? In google, I have searched about many explanations, I got common to explain which I don't understand till yet. "Waits for the transmission of outgoing serial data to complete." I didn't get till yet. can anyone explain to me in simple terms?

/ Wait until the client sends some data

  Serial.println("new client");

  while(!client.available()){

    delay(1);

  }

  // Read the first line of the request

  String request = client.readStringUntil('\r');

  Serial.println(request);

  client.flush();

 

flushing buffers just means emptying ready for next sentence... Most serial buffers should be clear before reception..

 

flushing buffers just means emptying ready for the next sentence... Most serial buffers should be clear before the reception.

I mean to say suppose if I am client, request for anything from the server and my request read by in the Arduino by this line "
String request = client.readStringUntil('\r');"
Then the serial monitor will print my message.
then client. flush will flush my current request before coming to a new client request. Is it?
please give me a simple example where I can understand easily. if possible try to explain to me from the code which is posted above.

 

Okay.. The "client" will have its own buffer. Once its transferred to the string "request" it needs deleting..