NodeJS / Socket.io Trustline

• A “trustline” is a way to keep track of debt between two parties.

• Each user should interact with a separate instance of the program that keeps track of the trustline balance

• The trustline services should communicate directly with one another, not through a central server or intermediary

• State does not have to persist between sessions

• Write a program that implements a trustline

• and exposes an interface (such as an API or interactive shell) for a user to interact with the trustline.

• Each user will run a separate instance of the service

• and once both processes are started, each user should be able to

• send money to the other and view their own balance.

Using Node.js version v10.15.3

• Download or clone repository

• cd into the trustline directory

• Run command npm install in terminal

• In (one) terminal session, run the command node trustline.js in terminal

• Open (second) terminal session and run the command node start-trustline.js 3BC51062973C458D5A6F2D8D64A023246354AD7E064B1E4E009EC8A0699A3043 XRP in the terminal

• Open (third) terminal session and run the command node start-trustline.js CD9FB1E148CCD8442E5AA74904CC73BF6FB54D1D54D333BD596AA9BB4BB4E961 XRP

• In the second terminal session type balance and press ENTER, to view the balance set in the Trustline for Alice

• In the third terminal session type balance and press ENTER, to view the balance set in the Trustline for Bob

• Go to second terminal session and type send transfer for 10 xrp CD9FB1E148CCD8442E5AA74904CC73BF6FB54D1D54D333BD596AA9BB4BB4E961

• View terminal logs for updated output

• In the second terminal session type balance and press ENTER, to view the updated balance set in the Trustline for Alice

• In the third terminal session type balance and press ENTER, to view the updated balance set in the Trustline for Bob

• When done press CTRL + C to quit all processes

3BC51062973C458D5A6F2D8D64A023246354AD7E064B1E4E009EC8A0699A3043 : SHA-256 encrypted for "Alice" CD9FB1E148CCD8442E5AA74904CC73BF6FB54D1D54D333BD596AA9BB4BB4E961 : SHA-256 encrypted for "Bob"