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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"