Lab: Use an SUDT in Lumos

Complete the exercise in index.js in the folder Lab-SUDT-Exercise by adding code and values as necessary.

The index.js file contains incomplete Lumos code to deploy, create, transfer, and consume cells using the SUDT type script. Your task is to add and modify the code as necessary to complete the transactions as instructed.

In this lab exercise, several pieces of the core logic has been removed. You must construct it yourself. Feel free to copy and paste some of your code from previous exercises to complete this lab exercise, but it's recommended that you try to write as much of the code as possible.

1. Compile the sudt binary from the previous lab in release mode using capsule build --release, then copy it from build/release/ to the files/ folder.

2. Update the createCells() function to create four cells using the sudt type script.

   1. Three of the token cells should have Alice as the owner of the token, Alice as the owner of the cell, and should have the following token amounts: 100, 300, 700

   2. The fourth token cell should have as the owner of the token, Daniel and the owner of the cell, and should contain 900 tokens.

   3. Use the computeScriptHash() Lumos function to find the lock script hash which is used as arguments to the SUDT type script to define the owner.

   4. Each of the four token cells should contain only the minimum capacity necessary.

3. Update the transferCells() function to transfer the three SUDT cells that were created for Alice.

   1. Send tokens to the following people: Bob: 200, Charlie: 500, Alice: 400 (change)

   2. Use the CellCollector() Lumos class to perform cell collection on Alice's three input cells.

   3. Each of the three output token cells should contain only the minimum capacity necessary.

4. Update the consumeCells() function to burn Alice's remaining SUDT tokens.

   1. Alice has decided she no longer wants her remaining tokens and decides to burn them.

   2. The cell used for the token still contains capacity. These CKBytes must be recovered when the token cell is consumed.

   3. Use the CellCollector() Lumos class to perform cell collection on Alice's three input cells.

Run your code by opening a terminal to the Lab-SUDT-Exercise folder and running node index.js. If you get stuck you can find the solution in the Lab-SUDT-Solution folder.

Once your code successfully executes, the resulting transaction ID will be printed on the screen.