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Apex Workshop Notes

Getting Started

  1. Install Rust (https://rust-lang.org/tools/install)
  2. Install Docker (https://docs.docker.com/engine/install)
  3. Clone the repo at https://github.com/ripple/craft
  4. Type craft to start the CLI and install dependencies

Running an Example

We will be walking through the kyc example. This example will only allow the escrow to be finished if the destination has created a "Terms and Conditions" example to itself.

Build the example

% craft
> What would you like to do? Build WASM module
Configuring WASM build settings...
> Select WASM project: kyc
> Select build mode: Release (optimized, no debug info)
> Select optimization level: Aggressive (-Oz: optimize aggressively for size)
Building WASM module...
Running cargo build...
args: ["build", "--target", "wasm32v1-none", "--release"]

    Finished `release` profile [optimized] target(s) in 0.03s


Build completed successfully!

WASM file location:
/Users/mvadari/Documents/craft/projects/kyc/target/wasm32v1-none/release/kyc.wasm
Size: 1198 bytes
WASM Fingerprint: w7HwHG281DxCQf43VyE7tx1CFheTop12cM # note, this might be wrong
> Would you like to export the WASM as hex (copied to clipboard)? No
Optimizing WASM module...
Optimization complete!
> What would you like to do next? Exit

Run the example

In a separate Terminal window:

# open Docker Desktop
docker pull rippleci/rippled:smart_escrow
docker run --rm -p 5005:5005 -p 6006:6006 --volume "/$(pwd)/reference/rippled_cfg/":"/opt/etc/ripple/" --platform linux/amd64 rippleci/rippled:smart_escrow "-a"

In your main Terminal window:

# run scripts
node reference/js/deploy_sample_standalone.js kyc
# Record the Origin, Destination, and Destination Secret from the output above
node reference/js/finish_escrow_kyc.js [DestinationAccount] [DestinationSecret] [OriginAccount] [EscrowSequence]