ESP8266 Community Forum

- Thu Aug 27, 2015 8:41 pm #27203

I find it hard to belive that there is not an existing function to do this.

I'm not following you. The code above is quite straight forward, it is following the HTTP specs.
If you wish to "wrap" it into a function,of course, it can be done, as long as it handle the failures and success.

- Thu Aug 27, 2015 9:02 pm #27204 The domain name and the rest of the url mjst be seperated thoug.

The client.connect and the get are diferent portions of the j
Url?
Client connect. "Google.com"
Get "/search=blablabla"

Cant just be one string used both places. Requires them to be seporated?

Serial terminal in the chrome browser see https://serialTerminal.com

http://esp8266basic.com
A BASIC interpreter for your ESP

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- Thu Aug 27, 2015 9:30 pm #27205 Unfortunately, we can't change the HTTP protocol, which is not ESP related.
The code above was a simple example to follow.
It is up to you to write handy helper function for you project.
Personally, I don't see much complex stuff in the above code.

- Thu Aug 27, 2015 11:32 pm #27207 I am getting a error when I try and compile the following:
Using the staging version

Code: Select all#include "spiffs/spiffs.h"
#include <FS.h>
//#include <ESP8266mDNS.h>

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
#include <WiFiUdp.h>
#include <ESP8266WebServer.h>



String FetchWebUrl(String URLtoGet)
{
  String str;
  String ServerToConnectTo;
  String PageToGet;
  ServerToConnectTo = URLtoGet.substring(0, URLtoGet.indexOf("/"));
  PageToGet = URLtoGet.substring(URLtoGet.indexOf("/"));

  Serial.println(ServerToConnectTo);
  Serial.println(PageToGet);

  WiFiClient client;
  if (client.connect(ServerToConnectTo , 80))
  {
    client.print("GET /?format=json HTTP/1.1\r\nHost: api.ipify.org\r\n\r\n");
    delay(100);
    str = "";
    while (client.available()) {
      str += client.read();
    }
    return str;
  }
}

Error:

Code: Select allESP8266_BASIC_INTERPERTERv2.ino: In function 'String FetchWebUrl(String)':
ESP8266_BASIC_INTERPERTERv2.ino:1660:44: error: no matching function for call to 'WiFiClient::connect(String&, int)'
ESP8266_BASIC_INTERPERTERv2.ino:1660:44: note: candidates are:
In file included from C:\Users\user\AppData\Roaming\Arduino15\packages\esp8266\hardware\esp8266\1.6.5-1044-g170995a\libraries\ESP8266WiFi\src/ESP8266WiFi.h:32:0,
                 from ESP8266_BASIC_INTERPERTERv2.ino:28:
C:\Users\user\AppData\Roaming\Arduino15\packages\esp8266\hardware\esp8266\1.6.5-1044-g170995a\libraries\ESP8266WiFi\src/WiFiClient.h:45:15: note: virtual int WiFiClient::connect(IPAddress, uint16_t)
   virtual int connect(IPAddress ip, uint16_t port);
               ^
C:\Users\user\AppData\Roaming\Arduino15\packages\esp8266\hardware\esp8266\1.6.5-1044-g170995a\libraries\ESP8266WiFi\src/WiFiClient.h:45:15: note:   no known conversion for argument 1 from 'String' to 'IPAddress'
C:\Users\user\AppData\Roaming\Arduino15\packages\esp8266\hardware\esp8266\1.6.5-1044-g170995a\libraries\ESP8266WiFi\src/WiFiClient.h:46:15: note: virtual int WiFiClient::connect(const char*, uint16_t)
   virtual int connect(const char *host, uint16_t port);
               ^
C:\Users\user\AppData\Roaming\Arduino15\packages\esp8266\hardware\esp8266\1.6.5-1044-g170995a\libraries\ESP8266WiFi\src/WiFiClient.h:46:15: note:   no known conversion for argument 1 from 'String' to 'const char*'
no matching function for call to 'WiFiClient::connect(String&, int)'

Serial terminal in the chrome browser see https://serialTerminal.com

http://esp8266basic.com
A BASIC interpreter for your ESP

Working now on Autodrop3d. A 3d printer with automatic part ejection system. https://autodrop3d.com