Project #4. Securing Digital Assets on a Private Blockchain.

To setup and start the project do the following:

1. Get the project.

2. Run command npm install to install the project dependencies.

3. Run command npm start in the root directory to start the project. You can also start it using node app.js.

How to use the API

1. To submit a validation request send a POST request to the following URL:
   http://localhost:8000/requestValidation
   request body should contain a wallet address:

{ "address":"19xaiMqayaNrn3x7AjV5cU4Mk5f5prRVpL" }

2. To validate the request send a POST request to the following URL:
   http://localhost:8000/message-signature/validate
   request body should contain the wallet address and the signature:

{
"address":"19xaiMqayaNrn3x7AjV5cU4Mk5f5prRVpL",
"signature":"H8K4+1MvyJo9tcr2YN2KejwvX1oqneyCH+fsUL1z1WBdWmswB9bijeFfOfMqK68kQ5RO6ZxhomoXQG3fkLaBl+Q="
}

3. To store star data into the blockchain send a POST request to the following URL:
   http://localhost:8000/block
   request body should contain an address with star information

{
    "address": "19xaiMqayaNrn3x7AjV5cU4Mk5f5prRVpL",
    "star": {
                "dec": "68° 52' 56.9",
                "ra": "16h 29m 1.0s",
                "story": "Found star using https://www.google.com/sky/"
            }
}

4. To get a start block by its hash send a GET request to the following URL:
   http://localhost:8000/stars/hash/startHash
   where starHash in the above url is the hash of the block which contains the star data.

5. To get star blocks by wallet address send a GET request to the following URL:
   http://localhost:8000/stars/address/walletAddress
   where walletAddress in the above url is the address of wallet which associated to stars.

6. To get a star block using block height, make a GET request to the following URL:
   

http://localhost:8000/block/height

where height in the above url is a positive integer.