📝 Add docs for integrating with NoSQL

docs/tutorial/src/nosql-databases/tutorial001.py

@@ -0,0 +1,54 @@
+from typing import Optional
+
+from fastapi import FastAPI
+from pydantic import BaseModel
+
+from couchbase import LOCKMODE_WAIT
+from couchbase.bucket import Bucket
+from couchbase.cluster import Cluster, PasswordAuthenticator
+
+USERPROFILE_DOC_TYPE = "userprofile"
+
+
+def get_bucket():
+    cluster = Cluster("couchbase://couchbasehost:8091")
+    authenticator = PasswordAuthenticator("username", "password")
+    cluster.authenticate(authenticator)
+    bucket: Bucket = cluster.open_bucket("bucket_name", lockmode=LOCKMODE_WAIT)
+    return bucket
+
+
+class User(BaseModel):
+    username: str
+    email: Optional[str] = None
+    full_name: Optional[str] = None
+    disabled: Optional[bool] = None
+
+
+class UserInDB(User):
+    type: str = USERPROFILE_DOC_TYPE
+    hashed_password: str
+
+    class Meta:
+        key: Optional[str] = None
+
+
+def get_user(bucket: Bucket, username: str):
+    doc_id = f"userprofile::{username}"
+    result = bucket.get(doc_id, quiet=True)
+    if not result.value:
+        return None
+    user = UserInDB(**result.value)
+    user.Meta.key = result.key
+    return user
+
+
+# FastAPI specific code
+app = FastAPI()
+
+
+@app.get("/users/{username}", response_model=User)
+def read_user(username: str):
+    bucket = get_bucket()
+    user = get_user(bucket=bucket, username=username)
+    return user

docs/tutorial/src/sql-databases/tutorial001.py

@@ -12,6 +12,7 @@ db_session = scoped_session(
     sessionmaker(autocommit=False, autoflush=False, bind=engine)
 )
 
+
 class CustomBase:
     # Generate __tablename__ automatically
     @declared_attr