/*******************************************************************
Get Refresh Token from spotify, this is needed for the other
examples.
Instructions:
- Put in your Wifi details, Client ID, Client secret and flash to the board
- Do one of the following
--- IF USING IP (ESP32 MDNS does not work for me)
- Get the Ip Address from the serial monitor
- Add the following to Redirect URI on your Spotify app "http://[ESP_IP]/callback/"
e.g. "http://192.168.1.20/callback/" (don't forget the last "/")
- Open browser to esp using the IP
--- IF USING MDNS
- Search for "#define USE_IP_ADDRESS" and comment it out
- Add the following to Redirect URI on your Spotify app "http://arduino.local/callback/"
(don't forget the last "/")
- Open browser to esp: http://arduino.local
-----------
- Click the link on the webpage
- The Refresh Token will be printed to screen, use this
for SPOTIFY_REFRESH_TOKEN in other examples.
* * = Affiliate
*******************************************************************/
// ----------------------------
// Standard Libraries
// ----------------------------
#if defined(ESP8266)
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#elif defined(ESP32)
#include <WiFi.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#endif
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
// ----------------------------
// Additional Libraries - each one of these will need to be installed.
// ----------------------------
#include <SpotifyArduino.h>
// Library for connecting to the Spotify API
// Install from Github
// https://github.com/witnessmenow/spotify-api-arduino
// including a "spotify_server_cert" variable
// header is included as part of the SpotifyArduino libary
#include <SpotifyArduinoCert.h>
#include <ArduinoJson.h>
// Library used for parsing Json from the API responses
// Search for "Arduino Json" in the Arduino Library manager
// https://github.com/bblanchon/ArduinoJson
//------- Replace the following! ------
char ssid[] = "SSID"; // your network SSID (name)
char password[] = "PASSWORD"; // your network password
char clientId[] = "xxx"; // Your client ID of your spotify APP
char clientSecret[] = "xxx"; // Your client Secret of your spotify APP (Do Not share this!)
char scope[] = "user-read-playback-state%20user-modify-playback-state";
#define USE_IP_ADDRESS 1
#ifdef USE_IP_ADDRESS
char callbackURItemplate[] = "%s%s%s";
char callbackURIProtocol[] = "http%3A%2F%2F"; // "http://"
char callbackURIAddress[] = "%2Fcallback%2F"; // "/callback/"
char callbackURI[100];
#else
char callbackURI[] = "http%3A%2F%2Farduino.local%2Fcallback%2F";
#endif
//------- ---------------------- ------
#if defined(ESP8266)
ESP8266WebServer server(80);
#elif defined(ESP32)
WebServer server(80);
#endif
WiFiClientSecure client;
SpotifyArduino spotify(client, clientId, clientSecret);
const char *webpageTemplate =
R"(
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
</head>
<body>
<div>
<a href="https://accounts.spotify.com/authorize?client_id=%s&response_type=code&redirect_uri=%s&scope=%s">spotify Auth</a>
</div>
</body>
</html>
)";
void handleRoot()
{
char webpage[800];
sprintf(webpage, webpageTemplate, clientId, callbackURI, scope);
server.send(200, "text/html", webpage);
}
void handleCallback()
{
String code = "";
const char *refreshToken = NULL;
for (uint8_t i = 0; i < server.args(); i++)
{
if (server.argName(i) == "code")
{
code = server.arg(i);
refreshToken = spotify.requestAccessTokens(code.c_str(), callbackURI);
}
}
if (refreshToken != NULL)
{
server.send(200, "text/plain", refreshToken);
}
else
{
server.send(404, "text/plain", "Failed to load token, check serial monitor");
}
}
void handleNotFound()
{
String message = "File Not Found\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i = 0; i < server.args(); i++)
{
message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
}
Serial.print(message);
server.send(404, "text/plain", message);
}
void setup()
{
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("");
// Wait for connection
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
IPAddress ipAddress = WiFi.localIP();
Serial.println(ipAddress);
if (MDNS.begin("arduino"))
{
Serial.println("MDNS responder started");
}
// Handle HTTPS Verification
#if defined(ESP8266)
client.setFingerprint(SPOTIFY_FINGERPRINT); // These expire every few months
#elif defined(ESP32)
client.setCACert(spotify_server_cert);
#endif
// ... or don't!
//client.setInsecure();
// If you want to enable some extra debugging
// uncomment the "#define SPOTIFY_DEBUG" in ArduinoSpotify.h
#ifdef USE_IP_ADDRESS
// Building up callback URL using IP address.
sprintf(callbackURI, callbackURItemplate, callbackURIProtocol, ipAddress.toString().c_str(), callbackURIAddress);
#endif
server.on("/", handleRoot);
server.on("/callback/", handleCallback);
server.onNotFound(handleNotFound);
server.begin();
Serial.println("HTTP server started");
}
void loop()
{
#if defined(ESP8266)
MDNS.update();
#endif
server.handleClient();
}
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