Unable to read text file from server

Question

I saw the Web client Example , In the example, the server connection is initialized in setup(). But I want the server to update the text file every time. So, I need the server connection to be in loop().

But, it is not working. Where is the problem in my code.

#include <GSM.h>
#define PINNUMBER ""
// APN data
#define GPRS_APN "GPRS_APN" // replace your GPRS APN
#define GPRS_LOGIN "login" // replace with your GPRS login
#define GPRS_PASSWORD "password" // replace with your GPRS password
// initialize the library instance
GSMClient client;
GPRS gprs;
GSM gsmAccess; 
// URL, path & port (for example: arduino.cc)
char server[] = "yourdomain.com";
char path[] = "/current.txt";
int port = 80; // port 80 is the default for HTTP
void setup() {
// initialize serial communications and wait for port to open:
Serial.begin(9600);
Serial.println("SMS connected");
// connection state
boolean notConnected = true;
// After starting the modem with GSM.begin()
// attach the shield to the GPRS network with the APN, login and password
while(notConnected) {
 if((gsmAccess.begin(PINNUMBER)==GSM_READY) &
 (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD)==GPRS_READY))
 notConnected = false;
else {
 Serial.println("Not connected");
 delay(1000);
 }
 }
Serial.println("GPRS connected...");
Serial.println(" Connecting to Server ");
}
void loop() {
if (client.connect(server, port)) {
 client.print("GET /current.txt");
 Serial.print("GET /current.txt");
 client.println(" HTTP/1.1");
 Serial.println(" HTTP/1.1");
 client.println("Host: www.yourdomain.com");
 Serial.println("Host: www.yourdomain.com");
 client.println("User-Agent: Arduino");
 Serial.println("User-Agent: Arduino");
 client.println("Accept: text/html");
 Serial.println("Accept: text/html");
 client.println("Connection: close");
 Serial.println("Connection: close");
 client.println();
 Serial.println();
 Serial.println("\nCOMPLETE!\n");
 //client.stop();
} else {
 Serial.println("connection failed");
 Serial.println("\n FAILED!\n");
}
if (client.available()) {
 char c = client.read();
 Serial.print(c);
} else {
 Serial.println();
 Serial.println("disconnecting.");
 client.stop();
}
}

• The Guy with The Hat: What's not working?
• Manihatty: The server is connected, but it does not gives the server response for the requested text file.
• Peter Bloomfield: It looks like your sketch will only ever read the first character from the server. Is that deliberate?

Answer 1

Its working as long as the connection doesn't break or the server doesn't stall. We must wait till the response .

while (client.connected()) 
{ 
 while(client.available()) 
 { 
 char ch = client.read();
 Serial.print(ch); 
 }
} 
 client.stop();