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Online Hotel Booking

This network tracks the booking, cancelling or checking out transactions of hotel rooms from the client to the Hotel listed in the network on a fabric blockchain.

Models within the network

Participants

Hotel Client

Assets

Rooms Order

Transactions

Bookroom Cancelroom Durationcomplete

Example use of this business network

A Client uses the application run by a consortium of Hotels to book a Room in any of the listed Hotels. The application submits a BookRoom transaction which creates a new Order asset. The application also pays the amount to the Hotel. While looking for a Room, the client can also see the availability as the Room asset has a property to show the availability. The applcation has two more transactions Cancelroom and Durationcomplete. In case the Client wishes to cancel the order, he can publish it through he transaction Cancelroom. If the Client is checking out, he can publish it through Durationcomplete transaction, so that the status of the room can be changed from Booked to available.

Testing this network within playground

Navigate to the online composer playground and copy the models file in the models.cto file, script to script.js and permissions to permissions.acl file. Navigate to Test tab and then create new Client and Hotel. Create a new Room for the Hotel and then Submit a BookRoom transaction.

{
  
  "$class": "org.acme.hotelbooking.Bookroom",
  "id": "",
  "room": "resource:org.acme.hotelbooking.Room#4442",
  "client": "resource:org.acme.hotelbooking.Client#4297",
  "from": "2018-08-27T18:52:13.406Z",
  "to": "2018-08-27T18:52:13.406Z",
  "no_of_days": 0
}

This will Book the room and also transfer the funds from the client's balance to the Hotel's balance.

Next you can submit the transaction Cancelroom which will cancel the room's Booking thus changing the room's status from Booked to available. Also note that there is no refund policy in this application but it depends on the consortium of Hotels.

{
 "$class": "org.acme.hotelbooking.Cancelroom",
 "room": "resource:org.acme.hotelbooking.Room#6011",
 "client": "resource:org.acme.hotelbooking.Client#5048",
 "order": "resource:org.acme.hotelbooking.Order#5530"
}

Also if you haven't submitted a Cancelroom transaction you can submit a Durationcomplete transaction, thus changing the room's status from Booked to available.

{
  "$class": "org.acme.hotelbooking.Durationcomplete",
  "room": "resource:org.acme.hotelbooking.Room#5631",
  "order": "resource:org.acme.hotelbooking.Order#0572"
}

Permissions in this business network for modelled participants

Within this network permissions are outlines for the participants outlining what they can and can't do. The rules in the permissions.acl file explicitly ALLOW participants to perform actions. Actions not written for a participant in that file are blocked. For sake of simplicity there are no restricions added but permissions should be added.

Start the network using Fabric Blockchain

To start the network on a fabric Blockchain, first make sure you have all the development pre-requisites installed. Check them on https://hyperledger.github.io/composer/latest/installing/development-tools.

After this go the fabric-dev-server folder and run the following commands to start a fabric network.

./startFabric.sh
./createPeerAdmin.sh

Now go the folder where you have cloned this repo and run the following commands with required options

composer network install
composer network start
composer card import 
composer network ping

Next to start the composer rest server, type the following command

composer-rest-server

We have our rest server running on localhost:3000.

To run a simple angular application generated by Yeoman generator, look into the angular- client repository.

Note : A more sophisticated application with a node.js server and a angular client application in which our fabric blockchain is interacting with node.js server instead of angular application is in progress.