Hi there, I run a Creative Agency and decided it’s important for my team to know and “hear” the appreciation from our fans on FB - motivation wise.
My goal is to make a device that checks for fan count on our page and play music when the counter rises.
I’ve done a working prototype for Behance.net
// This #include statement was automatically added by the Particle IDE.
#include "SparkCorePolledTimer/SparkCorePolledTimer.h"
// This #include statement was automatically added by the Particle IDE.
#include "SparkJson/SparkJson.h"
// This #include statement was automatically added by the Particle IDE.
#include "HttpClient/HttpClient.h"
/**
* Declaring the variables.
*/
unsigned int nextTime = 0; // Next time to contact the server
HttpClient http;
// Headers currently need to be set at init, useful for API keys etc.
http_header_t headers[] = {
// { "Content-Type", "application/json" },
// { "Accept" , "application/json" },
{ "Accept" , "*/*"},
{ NULL, NULL } // NOTE: Always terminate headers will NULL
};
http_request_t request;
http_response_t response;
int last_appreciations= 0;
SparkCorePolledTimer updateTimer(60*1000); //Create a timer object and set it's timeout in milliseconds
void OnTimer(void); //Prototype for timer callback method
void setup() {
Serial.begin(9600);
pinMode(D7, OUTPUT);
pinMode(D0, OUTPUT);
pinMode(D1, OUTPUT);
updateTimer.SetCallback(OnTimer);
Time.zone(+2);
}
void loop() {
updateTimer.Update();
}
// https://www.behance.net/v2/users/meggot/stats?api_key=myAPPid
void OnTimer(void) {
//Handler for the timer, will be called between 10:00 and 18:00
if (Time.hour() >= 10 && Time.hour() <= 17){
//Serial.println();
//Serial.println("Application>\tStart of Loop.");
// Request path and body can be set at runtime or at setup.
request.hostname = "www.behance.net";
request.port = 80;
request.path = "/v2/users/meggot/stats?api_key=<myAPPid>";
// The library also supports sending a body with your request:
//request.body = "{\"key\":\"value\"}";
// Get request
http.get(request, response, headers);
Serial.print("BehanceIOT>\tTime now: ");
Serial.println(Time.timeStr());
Serial.print("BehanceIOT>\tResponse status: ");
Serial.println(response.status);
Serial.print("BehanceIOT>\tHTTP Response Body: ");
StaticJsonBuffer<512> jsonBuffer;
char json[500];
response.body.toCharArray(json,500);
JsonObject& root = jsonBuffer.parseObject(json);
if (!root.success())
{
Serial.println("parseObject() failed");
return;
}
int appreciations = root["stats"]["all_time"]["project_appreciations"];
Serial.println(appreciations);
if (appreciations!= last_appreciations){
digitalWrite(D7,HIGH);
digitalWrite(D0,HIGH);
digitalWrite(D1,HIGH);
Serial.println("NOWE POLUBIENIE!");
delay(1000);
digitalWrite(D7,LOW);
digitalWrite(D0,LOW);
digitalWrite(D1,LOW);
delay(1000);
digitalWrite(D7,HIGH);
digitalWrite(D0,HIGH);
digitalWrite(D1,HIGH);
delay(1000);
digitalWrite(D7,LOW);
digitalWrite(D0,LOW);
digitalWrite(D1,LOW);
last_appreciations= appreciations;
}
}
}
Unfortunately it doesn’t work with Facebook since FB needs it’s API calls to be made over https instead of http. I have no idea (@michaelT ) how to use the library “HTTPSCLIENT-PARTICLE” and I don’t understand the TIMEAPI-TEST.cpp - the example is not clear to me. Maybe if there was a similar example as in the normal httpclient, than I could extrapolate from that (I’m no developer - just a maker as you can probably see). The parts I don’t understand are: 1. the way in which the request is being formatted in “httpRequestContent[]”. Why not just the URL like I have below?
2. How to get the response? In normal client I get this by “Serial.println(response.body);” how is this done in httpsclient?
I have a working URL (working on my chrome browser):
https://graph.facebook.com/v2.6/815713765185385?fields=fan_count&access_token=myAPPid|myAPPsecretID
Can somebody tell me how to modify my behance API example to work with Facebook, or point me in right direction? I understand that this example will not work since the client I’m using doesn’t support HTTPS but maybe you have other solutions? Is there a way to get the like count of my page, not using https protected Graph api?
I’ll add this to my list of things to update.