Retrieving Data from ThingSpeak

[gokulakannan19]

I want to retrieve data from thingspeak api, but cannot receive the full data. Every time data gets printed partially. What might be the issue?

[gokulakannan19]

void display_output(){
  Serial.println(esp.readString());
}

void setup() {
  Serial.begin(9600);   
  esp.begin(9600);

  esp.println("AT");
  delay(10);
  display_output();
  Serial.println("Connecting to Wifi...");
  //connect using ssid and passwd
  esp.println("AT+CWJAP=\""+ssid+"\",\""+password+"\"");
  delay(6000);
  display_output();    
}

void loop() {
  //open tcp connecti
  esp.println("AT+CIPSTART=\"TCP\",\""+host+"\","+port);
  delay(20);
  display_output();  
  
  //send our req length
  esp.println("AT+CIPSEND=122");
  delay(10);
  // esp.println(len);
  display_output();

  //send out http request
  esp.println("GET /channels/1917720/fields/1/last.txt?api_key=ZEPPAQY45HLH3280 HTTP/1.1");
  delay(10);
  esp.println("Host: api.thingspeak.com");
  delay(10);
  esp.println("Connection: close");
  delay(10);
  esp.println();
  delay(2000);

  //wait for response from the server
  while(esp.available() == 0){
    delay(5);
  }
  display_output();
  
  //close tcp connection
  esp.println("AT+CIPCLOSE=0");  
  delay(15000);
}

[gokulakannan19]

This is the code which I'm trying.

[gokulakannan19]

arduino - Can not get full and right data from web through esp8266 - Stack Overflow same issue

[gokulakannan19]

void display_output(){  
  while(esp.available())
    Serial.println(esp.readString());
}

This code solved the issue