fxue / shipo

money 20/20 hackthon

nodejs blockchain barebones client

Getting Started

This application demonstrates the basics of getting started with the Mastercard Core Blockchain API. To get started you should take the following steps

• Clone this repository
• Edit the message.proto file and assign your APP_ID for value of package
• Goto Mastercard Developers and create a Mastercard Blockchain project (note this is currently a private API and you may need to request access). You will be taken through the wizard to create a node. You must provide an APP_ID and a protocol buffer definition i.e. message.proto.
• You will receive a p12 file and a consumer key from Mastercard Developers for your project.
• Execute the following commands

npm install
node app.js

When started it gets you to confirm your parameters and then displays a simple menu.

Menu

============ MENU ============
1. Update protocol buffer definition
2. Create entry
3. Retrieve entry
4. Retrieve block
5. Retrieve last confirmed block
6. Show Protocol Buffer Definition
7. Re-initialize API
8. Print Command Line Options
0. Quit
Option:  (0)

From this menu you can create basic text entries on the blockchain and then retrieve them. You can also retrieve the block the entry was written.

More Commandline Options

Options:
  --help                Show help                                      [boolean]
  --version             Show version number                            [boolean]
  --consumerKey, --ck   consumer key (mastercard developers)
  --keystorePath, --kp  the path to your keystore (mastercard developers)
  --keyAlias, --ka      key alias (mastercard developers)
  --storePass, --sp     keystore password (mastercard developers)
  --protoFile, --pf     protobuf file
  --verbosity, -v       log mastercard developers sdk to console[default: false]

Useful Info

This project makes use of the Mastercard Blockchain SDK available from npm.

npm install mastercard-blockchain --save