Create a web API using a Node.js framework that will interact with a private blockchain to submit and retrieve blockchain data.

1. Clone the repository to your local computer. $ git clone https://github.com/lshicks13/P3-RESTfulWebAPI.git
2. Open the terminal and install the packages: npm install.
3. Run your application node app.js
4. Query Endpoints

• URL

  /block/:index

  Example: /block/8

• Method:

  GET

• URL Params

  Required:

  index=[integer]

• Success Response:

  • Status Code:

    200

  • Content:

    {
    "hash": "a77ad1485e820d32a7d1a559ddf4d7c5182f64842267eb7a135417619408d569",
    "height": 10,
    "body": "Test Data 9",
    "time": "1545286561",
    "previousBlockHash": "90bd737fa37b254adbae4d4b7cc155cc1cd616323c904afe87398173e0bdedc5"
    }
    

• Error Response:

  • Status Code:

    500

  • Content:

    Error: Block does not exist!

• URL

  /block

• Method:

  POST

• Data Params

  Required:

  body = [JSON Object]

  Example:

  {
      "body": "Test Data"
  }
  

• Success Response:

  • Status Code:

    200

  • Content:

    {
    "hash": "a20e4291de0e4e34921b17f402843cb4b106f89a2594bd17f6b0f9fd0fc32b73",
    "height": 11,
    "body": "Test Data",
    "time": "1545358567",
    "previousBlockHash": "2b9127644d96822c63351f4c68aae6f21e89bc557e60066200853c10db1ba167"
    }
    

• Error Response:

  An error message is received when no data is posted.

  • Status Code:

    500

  • Content:

    Error: You must add data to create a new block.

• Node.js
• Express.js