feat(api/ws.py): WebSoket

Added Libs for work with webSockets

.env.tmp

@@ -0,0 +1,2 @@
+KEY=  # Key for JWT token
+POSTGRES_URL=postgresql://

api/auth.py

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+from flask import Blueprint, request, jsonify
+from model.user import User
+
+auth = Blueprint("auth", __name__)
+
+
+@auth.route('/login', methods = ['POST'])
+def login():
+    if request.is_json:
+        req = request.json
+
+        email = req.get('email')
+        password = req.get('password')
+
+        if not email or not password:
+            return "Request must have email and password", 400
+
+        if len(email.strip()) < 4 or '@' not in email or '.' not in email:
+            return "Email is incorrect", 400
+
+        if len(password.strip()) < 8:
+            return "Password is too short", 400
+
+        user = User(email, password)
+        return jsonify(user.toJson())
+
+    else:
+        return "Request is not a json", 400

api/robots.py

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+from flask import Blueprint, request, jsonify
+from model.user import User
+#from module.db.repositories.robot_reposytory import update_robot get_by_id
+from loguru import logger as log
+robots = Blueprint("robots", __name__)
+
+robots.route('/data', methods = ['POST'])
+def data():
+    if request.headers.get("Authorization"):
+        if request.is_json:
+            req = request.json
+
+            id = req.get('robot_id')
+            tms = req.get('timestamp')
+            loc = req.get('location')
+            scanRes = req.get('scan_results')
+            battery = req.get('battery_level')
+
+            if update_robot(id, "received", battery, loc["zone"], loc["row"], loc["self"]):
+                res = {"status": "received", "message_id": "123"} #for that moment i don`t now what is message
+                return jsonify(res)
+            else:
+                log.error('failed to update robot data')
+                return("Server error")

api/ws.py

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+from app import app
+from flask_socketio import SocketIO, emit
+from loguru import logger as log
+#from module.db.repositories.robot_reposytory import update_robot get_by_id get_all
+#from module.db.repositories.inventory_repository import get_all as getRecords
+ws = socketIO(app)
+
+@ws.on('connect')
+def is_connect():
+    log.info('client is connected')
+
+@ws.on('disconnect')
+def is_disconnect():
+    log.info('client is disconnected')
+
+@ws.on('robot_update')
+def robotUpdate():
+    robots = get_all()
+    emit('response', jsonify({"type": "robot_update", "data": {robots.toJSON()}})
+
+@ws.on('inventory_alert')
+def robotUpdate():
+    records = getRecords()
+    emit('response', jsonify({"type": "inventory_alert", "data": {records.toJSON()}})
+    
+    

app.py

@@ -1,4 +1,15 @@
+from sys import exit
 from flask import Flask
+from api.auth import auth
+from utils.loadDotEnv import initializeENV
+from utils.PostgressConnect import PSQLConnect, PSQLCursor
+
+if not initializeENV():
+    exit(-1)
+
+#conn = PSQLConnect()
+#cur = PSQLCursor(conn)
 
 app = Flask(__name__)
 
+app.register_blueprint(auth, url_prefix='/api/auth')

dependencies.txt

@@ -1 +1,6 @@
 flask==3.1.2
+flask-socketio
+python-dotenv
+psycopg2-binary
+pyjwt
+loguru

model/user.py

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+from dataclasses import dataclass
+import json
+from utils.token import generateKey
+
+@dataclass
+class User:
+    id: int
+    name: str
+    role: str
+    token: str
+
+    def __init__(self, email: str, passwd: str):
+        #us = getUsModel() #возвращает словарь
+        self.id = 1#us['id']
+        self.name = 'Bob'#us['name']
+        self.role = 'Backend'#us['role']
+        self.token = generateKey(email, passwd)
+
+    def toJson(self):
+        return {"user": {"id": self.id, "name": self.name, "role": self.role}, "token": self.token}

utils/PostgressConnect.py

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+import psycopg2
+import os
+
+def PSQLConnect():
+    conn = psycopg2.connect(os.getenv('POSTGRES_URL'))
+    return conn
+
+def PSQLCursor(conn):
+    cur = conn.cursor()
+    return cur

utils/loadDotEnv.py

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+import os
+from dotenv import load_dotenv
+from loguru import logger as log
+
+DOTENV_PATH = '.env'
+
+def initializeENV() -> bool:
+    if os.path.exists(DOTENV_PATH):
+        load_dotenv(DOTENV_PATH)
+        log.info('.env is loaded')
+        return True
+    else:
+        log.error('.env isn`t loaded')
+        return False

utils/token.py

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+import jwt
+import os
+from time import time
+
+def generateKey(email, passwd):
+    key = os.getenv('KEY')
+    encoded = jwt.encode({email: passwd, 'iat': time()}, key, algorithm="HS256")
+    return encoded