main

.gitignore

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+.env
+cache.json

Dockerfile

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+# Set the base image
+FROM python:alpine3.19
+
+# Copy the files to the container
+COPY src /app
+COPY requirements.txt /app
+#COPY .env /app
+
+# Set the working directory
+WORKDIR /app
+
+# Install dependencies
+RUN pip install -r requirements.txt
+
+# Expose the port
+EXPOSE 5000
+
+# Run the application
+CMD ["python", "main.py"]

requirements.txt

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+python-dotenv
+flask
+requests

src/main.py

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+from flask import Flask, request, jsonify, render_template
+import requests, os, dotenv, json, base64, time
+
+# Initialize Flask app
+
+app = Flask(__name__)
+
+if os.path.exists('.env'):
+    dotenv.load_dotenv('.env')
+
+# Helper functions
+
+def querystring(params:dict):
+    return '&'.join([f'{key}={value}' for key, value in params.items()])
+
+def get_cache():
+    if os.path.exists('cache.json'):
+        with open('cache.json', 'r') as f:
+            return json.load(f)
+    return {}
+
+def save_cache(cache):
+    with open('cache.json', 'w') as f:
+        json.dump(cache, f)
+
+# Get access token
+
+def get_auth():
+    cache = get_cache()
+    if 'access_token' in cache: return True
+    query = querystring({
+        'response_type': 'code',
+        'client_id': os.getenv('CLIENT_ID'),
+        'scope': 'user-read-currently-playing',
+        'redirect_uri': os.getenv('REDIRECT_URI'),
+        'show_dialog': 'true'
+    })
+    redirect = requests.get(f"https://accounts.spotify.com/authorize?{query}")
+    print(redirect.url)
+    code = input('Enter code: ')
+    data = requests.post('https://accounts.spotify.com/api/token', data={
+        'grant_type': 'authorization_code',
+        'code': code,
+        'redirect_uri': os.getenv('REDIRECT_URI'),
+    }, headers={
+        'content-type': 'application/x-www-form-urlencoded',
+        'Authorization': 'Basic ' + base64.b64encode(f"{os.getenv('CLIENT_ID')}:{os.getenv('CLIENT_SECRET')}".encode()).decode()
+    }).json()
+    save_cache(data)
+    return True
+
+def update_token():
+    cache = get_cache()
+    data = requests.post('https://accounts.spotify.com/api/token', data={
+        'grant_type': 'refresh_token',
+        'refresh_token': cache['refresh_token']
+    }, headers={
+        'content-type': 'application/x-www-form-urlencoded',
+        'Authorization': 'Basic ' + base64.b64encode(f"{os.getenv('CLIENT_ID')}:{os.getenv('CLIENT_SECRET')}".encode()).decode()
+    }).json()
+    cache.update(data)
+    save_cache(cache)
+    return True
+
+# Routes
+
+@app.route('/api/nowplaying', methods=['GET'])
+def nowplaying():
+    cache = get_cache()
+    data = requests.get('https://api.spotify.com/v1/me/player/currently-playing', headers={
+        'Authorization': f"Bearer {cache['access_token']}"
+    })
+    if data.status_code == 204:
+        return jsonify({})
+    if data.json().get('error'):
+        update_token()
+        return nowplaying()
+    return jsonify(data.json())
+
+# Run app
+
+if __name__ == '__main__':
+    get_auth()
+    app.run(host='0.0.0.0', port=5000)