db replica base

server/backend/endpoints.py

@@ -38,7 +38,7 @@ async def get_all_rows(current_user: str = Depends(JWT.current_user)):
             raise HTTPException(status_code=404, detail="The user isn't found")
 @api.get("/get_user_by_email/{email}", response_model=pydentic.CreateUser)
 async def GetUserbyEmail(email:str, current_user: str = Depends(JWT.current_user)):
-    user = await db.GetUserbyEmail(email)
+    user = await db.get_user_by_email(email)
     if user:
         return user
     else:
@@ -46,18 +46,18 @@ async def GetUserbyEmail(email:str, current_user: str = Depends(JWT.current_user
 @api.post("/user_create", response_model=pydentic.CreateUser)
 async def create_user(row:pydentic.CreateUser):
     new_row = pydentic.CreateUser(email=row.email, description=row.description, activated = row.activated, password = row.password)
-    await db.CreateUser(new_row)
+    await db.create_user(new_row)
     return new_row
 @api.delete("/user_delete/{email}", response_model=pydentic.CreateUser)
 async def delete_user(email:str,current_user: str = Depends(JWT.current_user)):
-    user = await db.GetUserbyEmail(email)
+    user = await db.get_user_by_email(email)
     if not user:
         raise HTTPException(status_code=404, detail="The user isn't found")
-    await db.DeleteUser(email)
+    await db.delete_user(email)
     return user
 @api.put("/user_update/{email}", response_model=pydentic.CreateUser)
 async def update_user(email:str, updated_row: pydentic.UserUpdate, current_user: str = Depends(JWT.current_user)):
-    user = await db.GetUserbyEmail(email)
+    user = await db.get_user_by_email(email)
     if not user:
         raise HTTPException(status_code=404, detail="The user isn't found")
     changed = False
@@ -74,14 +74,14 @@ async def update_user(email:str, updated_row: pydentic.UserUpdate, current_user:
         user.password = updated_row.password
         changed = True
     if changed:
-        await db.UpdateUser(user)
+        await db.update_user(user)
     else:
         pass
     return user
 @api.post("/login")
 async def login_user(form_data: OAuth2PasswordRequestForm = Depends()):
     creds = pydentic.UserLogin(email=form_data.username, password=form_data.password)
-    user = await db.LoginUser(creds)
+    user = await db.login_user(creds)
     if not user:
         raise HTTPException(status_code=401, detail="The user isn't found")
 

server/database/db.py

@@ -11,7 +11,7 @@ db_folder.mkdir(parents=True, exist_ok=True)
 db_path = db_folder / "example.db"
 async_engine = create_async_engine(f"sqlite+aiosqlite:///{db_path}", echo=True)
 #sqlite+aiosqlite — тип БД + async-драйвер ///example.db — путь к файлу (три слэша, если путь относительный; четыре, если абсолютный
-
+#async_engine = create_async_engine( "postgresql+asyncpg://user:pass@host:5432/mydb", echo=True) #Можно указать Pgpool-II для psql или proxysql для mysql mariadb
 from passlib.context import CryptContext
 #Hash password
 pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
@@ -37,13 +37,13 @@ class User(Base):
 async def init_db():
     async with async_engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
-async def CreateUser(user_info):
+async def create_user(user_info):
     async with AsyncSessionLocal() as session:
         new_user = User(email=user_info.email, description=user_info.description, activated=user_info.activated, password=hash_password(user_info.password))
         session.add(new_user)
         await session.commit()
         await session.refresh(new_user)
-async def GetUserbyEmail(email):
+async def get_user_by_email(email):
     async with AsyncSessionLocal() as session:
         result = await session.execute(select(User).where(User.email==email))
         user = result.scalar_one_or_none()
@@ -53,7 +53,7 @@ async def get_all_rows():
         result = await session.execute(select(User))
         users = result.scalars().all()
         return users
-async def UpdateUser(user_info):
+async def update_user(user_info):
     async with AsyncSessionLocal() as session:
         result = await session.execute(select(User).where(User.id==user_info.id))
         user = result.scalar_one_or_none()
@@ -63,14 +63,14 @@ async def UpdateUser(user_info):
             user.activated = user_info.activated
             user.password = hash_password(user_info.password)
             await session.commit()
-async def DeleteUser(email):
+async def delete_user(email):
     async with AsyncSessionLocal() as session:
         result = await session.execute(select(User).where(User.email==email))
         user = result.scalar_one_or_none()
         if user:
             await session.delete(user)
             await session.commit()
-async def LoginUser(user_info):
+async def login_user(user_info):
     async with AsyncSessionLocal() as session:
         result = await session.execute(select(User).where(User.email == user_info.email))
         user = result.scalar_one_or_none()

server/database/db_balancer/master.yaml

@@ -0,0 +1,12 @@
+services:
+  postgres-master:
+    image: bitnami/postgresql:16
+    environment:
+      - POSTGRESQL_REPLICATION_MODE=master
+      - POSTGRESQL_REPLICATION_USER=repl_user
+      - POSTGRESQL_REPLICATION_PASSWORD=repl_pass
+      - POSTGRESQL_USERNAME=admin
+      - POSTGRESQL_PASSWORD=admin
+      - POSTGRESQL_DATABASE=mydb
+    ports:
+      - '5432:5432'

server/database/db_balancer/pgpool.conf

@@ -0,0 +1,20 @@
+#Это если вдруг мне когда нибудь приспичит сделать sql balancer с распределенными бд через pgpool-II
+
+backend_hostname0 = 'pg-master'
+backend_port0 = 5432
+backend_weight0 = 1
+backend_flag0 = 'ALWAYS_PRIMARY'
+
+backend_hostname1 = 'pg-replica1'
+backend_port1 = 5432
+backend_weight1 = 1
+backend_flag1 = 'ALLOW_TO_FAILOVER' 
+
+backend_hostname2 = 'pg-replica2'
+backend_port2 = 5432
+backend_weight2 = 1 #сколько запросов куда отправлять 1/1 например = 50/50
+backend_flag2 = 'ALLOW_TO_FAILOVER'
+
+load_balance_mode = on
+replication_mode = off #не юзают, тк устарело и глючно
+master_slave_mode = on

server/database/db_balancer/replica.yaml

@@ -0,0 +1,11 @@
+services:
+  postgres-replica:
+    image: bitnami/postgresql:16
+    environment:
+      - POSTGRESQL_REPLICATION_MODE=slave
+      - POSTGRESQL_REPLICATION_USER=repl_user
+      - POSTGRESQL_REPLICATION_PASSWORD=repl_pass
+      - POSTGRESQL_MASTER_HOST=MASTER_IP_ИЛИ_DNS
+      - POSTGRESQL_PASSWORD=admin
+    ports:
+      - "5432:5432"

server/front/login/js.js

@@ -19,13 +19,15 @@ document.getElementById('loginForm').addEventListener('submit', async function (
         password
     };
     try {
-        const response = await fetch('http://localhost:8000/login', {
-            method: 'POST',
+        const response = await fetch("http://localhost:8000/login", {
+            method: "POST",
             headers: {
-                'Accept': 'application/json',
-                'Content-Type': 'application/json'
+              "Content-Type": "application/x-www-form-urlencoded",
             },
-            body: JSON.stringify(userData)
+            body: new URLSearchParams({
+              username: userData.email,   // ⚠️ имя поля должно быть username
+              password: userData.password
+            }),
           });
 
         const data = await response.json();  // читаем только один раз