Finalize project

3_Codeabgabe/components/x_way/Dockerfile

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+FROM python:3.8-slim
+COPY . /app
+WORKDIR /app
+RUN pip install -r requirements.txt
+ENV PORT 5003
+EXPOSE 5003
+ENTRYPOINT [ "python" ]
+CMD [ "x_way_server.py" ]

3_Codeabgabe/components/x_way/README.md

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+# Super Lightweight Flask Web Server
+* `pip install requirements.txt`
+* `python x_way.py`
+* `http://127.0.0.1:5000` -> `Hello World`
+* `http://127.0.0.1:5000/api1` -> `api1`
+* `http://127.0.0.1:5000/api2` -> `api2`

3_Codeabgabe/components/x_way/requirements.txt

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+flask==1.1.4
+Flask-Cors
+requests
+Flask-PyMongo
+jsonify
+flask_restx

3_Codeabgabe/components/x_way/x_way_server.py

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+import flask
+import flask_restx
+import requests
+from bson import json_util
+from flask import Flask, jsonify
+from flask_cors import CORS
+from flask import request
+import json
+
+app = Flask(__name__)
+CORS(app)
+api_bp = flask.Blueprint("api", __name__, url_prefix="/api/v1")
+
+API = flask_restx.Api(api_bp)
+app.register_blueprint(api_bp)
+
+NAMESPACE = API.namespace("resources")
+
+ENTITY_IDENT_URL = 'http://entityident:5002/api/v1/resources/'
+EVENT_STORE_URL = 'http://eventstore:5001/api/keys/'
+
+
+@NAMESPACE.route('/car_events', doc={'description': 'Get most current car event for specific car'})
+class CarsEvents(flask_restx.Resource):
+    @NAMESPACE.doc(params={'vin': {'description': 'Vehicle Identifier Number of car',
+                                   'type': 'String', 'default': '5GZCZ43D13S812715'}})
+    @NAMESPACE.response(200, 'Success')
+    def get(self):
+        vin = request.args.get('vin')
+
+        try:
+            response = requests.get(EVENT_STORE_URL + 'DAF:' + vin + '/0/')
+            cars = json.loads(response.text)
+
+        except requests.exceptions.ConnectionError as e:
+            print("Is the EVENT_STORE_URL running and reachable?")
+            raise e
+
+        return jsonify(cars)
+
+
+@NAMESPACE.route('/traffic_light_events', doc={'description': 'Get most current traffic light event'
+                                                              'for specific traffic light'})
+class TrafficLightEvents(flask_restx.Resource):
+    @NAMESPACE.doc(params={'id': {'description': 'Unique ID of traffic light',
+                                   'type': 'int', 'default': '1'}})
+    @NAMESPACE.response(200, 'Success')
+    def get(self):
+        id = request.args.get('id')
+
+        try:
+            response = requests.get(EVENT_STORE_URL + 'TL:' + id + '/0/')
+            traffic_lights = json.loads(response.text)
+
+        except requests.exceptions.ConnectionError as e:
+            print("Is the EVENT_STORE_URL running and reachable?")
+            raise e
+
+        return jsonify(traffic_lights)
+
+
+@NAMESPACE.route('/cars', doc={'description': 'Get entity details for all cars'})
+class Car(flask_restx.Resource):
+    @NAMESPACE.response(200, 'Success')
+    def get(self):
+
+        try:
+            response = requests.get(ENTITY_IDENT_URL + 'cars')
+            cars = response.json()['cursor']
+
+        except requests.exceptions.ConnectionError as e:
+            print("Is the entity_ident_server running and reachable?")
+            raise e
+
+        return jsonify(cars)
+
+
+@NAMESPACE.route('/traffic_lights', doc={'description': 'Get entity details for all traffic lights'})
+class TrafficLights(flask_restx.Resource):
+
+    @NAMESPACE.response(200, 'Success')
+    def get(self):
+
+        try:
+            response = requests.get(ENTITY_IDENT_URL + 'traffic_lights')
+            traffic_lights = response.json()['cursor']
+
+        except requests.exceptions.ConnectionError as e:
+            print("Is the entity_ident_server running and reachable?")
+            raise e
+
+        return jsonify(traffic_lights)
+
+
+if __name__ == '__main__':
+    app.run('0.0.0.0', 5004)