added Dweetpost example

Author: tigoe

.gitignore

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-examples/*/config.h

examples/DweetPost/DweetPost.ino

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+/*
+  Dweet.io POST client for RestClient library
+  Connects to dweet.io once every ten seconds,
+  sends a POST request and a request body. Uses SSL
+
+  Shows how to use Strings to assemble path and body
+
+  note: WiFi SSID and password are stored in config.h file.
+  If it is not present, add a new tab, call it "config.h"
+  and add the following variables:
+  char ssid[] = "ssid";     //  your network SSID (name)
+  char pass[] = "password"; // your network password
+
+  created 15 Feb 2016
+  by Tom Igoe
+
+  this example is in the public domain
+*/
+#include <RestClient.h>
+#include <WiFi101.h>
+#include "config.h"
+
+char serverAddress[] = "dweet.io";  // server address
+int port = 80;
+
+WiFiClient wifi;
+RestClient client = RestClient(wifi, serverAddress, port);
+int status = WL_IDLE_STATUS;
+String response;
+int statusCode = 0;
+
+void setup() {
+  Serial.begin(9600);
+  while(!Serial);
+  while ( status != WL_CONNECTED) {
+    Serial.print("Attempting to connect to Network named: ");
+    Serial.println(ssid);                   // print the network name (SSID);
+
+    // Connect to WPA/WPA2 network:
+    status = WiFi.begin(ssid, pass);
+  }
+
+  // print the SSID of the network you're attached to:
+  Serial.print("SSID: ");
+  Serial.println(WiFi.SSID());
+
+  // print your WiFi shield's IP address:
+  IPAddress ip = WiFi.localIP();
+  Serial.print("IP Address: ");
+  Serial.println(ip);
+}
+
+void loop() {
+  // assemble the path for the POST message:
+  String dweetName = "scandalous-cheese-hoarder";
+  String path = "/dweet/for/" + dweetName;
+
+  // assemble the body of the POST message:
+  int sensorValue = analogRead(A0);
+  String postData = "{\"sensorValue\":\""; 
+  postData += sensorValue;
+  postData += "\"}";
+
+  Serial.println("making POST request");
+  client.setContentType("application/json");
+  statusCode = client.post(path, postData);
+  response = client.readResponse();
+  Serial.print("Status code: ");
+  Serial.println(statusCode);
+  Serial.print("Response: ");
+  Serial.println(response);
+
+  Serial.println("Wait ten seconds\n");
+  delay(10000);
+}

examples/DweetPost/config.h

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+ char ssid[] = "ssid";     //  your network SSID (name)
+  char pass[] = "password"; // your network password
+