[ADD] - Added social media user profile get and upsert microservice with nosql database integration

app/database.py

@@ -0,0 +1,29 @@
+
+from tinydb import TinyDB, Query
+
+# Initialize TinyDB as a NoSQL key-value store
+DB_FILE = "database.json"
+db = TinyDB(DB_FILE)
+User = Query()
+
+def get_user_profile(user_id):
+    """Fetch user profile from TinyDB"""
+    result = db.search(User.user_id == user_id)
+    return result[0] if result else None
+
+def update_user_profile(user_id, name, followers, bio, posts):
+    """Update user profile in TinyDB"""
+    db.upsert({"user_id": user_id, "name": name, "followers": followers, "bio": bio, "posts": posts}, User.user_id == user_id)
+
+def init_db():
+    """Ensure TinyDB is initialized before FastAPI starts and prepopulate some data"""
+    global db
+    db = TinyDB(DB_FILE)  # Reload TinyDB if needed
+
+    # Prepopulate database with some sample users if empty
+    if len(db) == 0:
+        db.insert_multiple([
+            {"user_id": "1", "name": "Alice", "followers": 100, "bio": "Love coding!", "posts": "Hello, world!"},
+            {"user_id": "2", "name": "Bob", "followers": 200, "bio": "Tech enthusiast", "posts": "AI is amazing!"},
+            {"user_id": "3", "name": "Charlie", "followers": 50, "bio": "Blogger", "posts": "Check out my latest post!"}
+        ])