WIP: README.md: started updating readme

README.md

@@ -1,16 +1,179 @@
-# backend
+# Travel agency tour operator microservices project
 
-## Using docker compose
+The main topic of the project implementation is the
+system for servicing customers interested in purchasing
+tourist offers. This application is developed in
+microservice architecture that uses brokered messages
+for communication between components. Used CQRS, Event Sourcing and Saga patterns.
+
+Frontend side of this project can be found [here](https://github.com/Microarchitecturovisco/travel-ui).
+
+## Table of contents
+- [Microservices architecture](#microservices-architecture)
+- [Using docker compose](#using-docker-compose)
+
+
+## Microservices architecture
+
+This project is devided into 9 modules:
+- **api gateway** - entrypoint for every request; by default available at port `8082`
+- **discovery service** - eureka-based discovery service
+- **hotel service** - module responsilbe for managing hotels-oriented data
+- **transport service** - module responsilbe for managing transports-oriented data
+- **offer provider service** - module responsible for returning offers based on search query
+- **reservation service** - module responsible for making reservations of selected offers
+- **payment service** - payment logic (mocked)
+- **user service** - user-oriented data
+- **data generator** - additional module for seeking live changes of the hotel and transport data
+
+**RabbitMQ** is used as the message broker.
+
+## Running with docker
 
 To start all services use this command in the project root directory:
 ```bash
 docker compose up -d
 ```
 
+
 This command will also optionally build the .jars if they aren't already packaged.
 
 To stop all associated containers, run:
 ```bash
 docker compose down
 ```
 
+## Available endpoints
+
+- **GET** `/transports/available` - returns a list of available destinations for trips by bus and plane. Return body:
+  ```json
+  {
+  "departure": {
+    "bus": [
+      {
+        "idLocation": int,
+        "country": string,
+        "region": string,
+      },
+      {...}
+    ],
+    "plane": [
+      {
+        "idLocation": int,
+        "country": string,
+        "region": string
+      },
+      {...}
+    ],
+  }
+  "arrival": [
+    {
+      "idLocation": int,
+      "country": string,
+      "region": string
+    },
+    {...}
+  ]
+  }
+  ```
+- **GET** `/offers` - returns trip offer according to search parameters.
+    Request params:
+    ```json
+    "departuresBus": int or an array of ints
+    "departuresPlane": int or an array of ints
+    "arrivals": int or an array of ints
+    "date_from": date in format yyyy-mm-dd
+    "date_to": date in format yyyy-mm-dd
+    "adults": int
+    "children_under_3": int
+    "children_under_10": int
+    "children_under_18": int
+    ```
+    Return body:
+    ```json
+    [
+        {
+            "idHotel": int,
+            "hotelName": string,
+            "price": float,
+            "destination": string,
+            "rating": float,
+            "imageUrl": string
+        },
+        {...}
+    ]
+    ```
+- **GET** `/offers/{ID_hotel}` - returns the offer details with search parameters.
+Request params:
+   ```json
+    "departuresBus": int or an array of ints
+    "departuresPlane": int or an array of ints
+    "arrivals": int or an array of ints
+    "date_from": date in format yyyy-mm-dd
+    "date_to": date in format yyyy-mm-dd
+    "adults": int
+    "children_under_3": int
+    "children_under_10": int
+    "children_under_18": int
+    ```
+    Return body:
+    ```json
+    {
+        "idHotel": int,
+        "hotelName": string,
+        "description": string,
+        "price": float,
+        "destination": string,
+        "rating": float,
+        "imageUrls": [
+        {
+        "imageUrl": string,
+        },
+        {...}
+        ],
+        "catering": [
+        {
+            "type": CateringType lub int,
+            "price": float,
+            "rating": float
+        },
+        {...}
+        ],
+        "rooms": [
+        {
+            "name": string,
+            "guestCapacity": int,
+            "pricePerAdult": float,
+            "description": [string]
+        },
+        {...}
+        ],
+        "departure": {
+        {
+            "price": float,
+            "idTransport": 15,
+            "country": string,
+            "region": string,
+            },
+        },
+        "possibleDepartures": {
+        "bus": [
+            {
+            "idTransport": int,
+            "country": string,
+            "region": string,
+            },
+            {...}
+        ],
+        "plane": [
+            {
+            "idTransport": int,
+            "country": string,
+            "region": string
+            },
+            {...}
+        ],
+        }
+    }
+    ```
+- **POST**