State of Glow Cardano #213

Open kwannoel opened 3 years ago

In GitLab by @kwanzknoel on Aug 9, 2021, 21:45

Questions we need answers to:

How does it work?

See Architecture Section below.

How do we run Glow DApp with Plutus Backend?

[x] Get the backend running with simulated steps via the PAB.
[ ] Provide a way for Glow off-chain / client-side to communicate with backend.
[ ] Communicate directly with on-chain bypassing PAB, using JSON RPC(?) / Cardano CLI
[ ] Swap out interpreter for compiler to plutus-core

How do we get the backend running?

[x] Get the library to compile
[x] Get the executable to compile
[x] Pass endpoint status checks
[x] Lex incoming glow request parameters.
[x] Parse incoming glow request parameters.
[x] Link it up with the create and move endpoints.
[x] Compile the test suite.
[x] Run test suite.
- [x] Fix the test suite error (Invalid Transition).
- [ ] Run the closing interaction from end to end using the emulator. MRs pending:
  - [ ] https://gitlab.com/mukn/glow/-/merge_requests/169
  - [ ] https://gitlab.com/mukn/glow-cardano-pab/-/merge_requests/1
[ ] Implement "missing but critical features" which glow needs in this prototype. See our previous report.
- [ ] Take a look of plutus-pab/examples/wait-for-tx/Main.hs.
[ ] Run interaction steps via PAB endpoints.
[ ] Have the PAB Client interact with on-chain code (currently hardcoded).
[ ] Glow Runtime should eventually support interaction with consensus code.
- [ ] Generalize Glow Runtime transaction posting (currently this is largely specific to EVM).
[ ] Run interaction steps via execute-contract from glow/cardano.

Polishes

[ ] Generate signature from Wallet on Glow, validate this signature on-chain (via PAB).
[ ] See FIXMEs & TODOs.
[ ] Ensure contract is initialized with proper timeouts.
[ ] Ensure funds are transferred during interaction steps between participants.
[ ] If a few months pin with niv / nix-thunk.

Other considerations / remarks

What are the tradeoffs of targeting PAB vs Plutus Core?
- Probably cheaper & easier to get PAB support
- Overhead of using smart contract library as an abstraction: TODO specify exactly what overheads there are.
What is the lower level library / interface / functionality that PAB uses to interact with Cardano Blockchain?
Are we able to bypass PAB, calling a lower level interface which directly interacts with Cardano Blockchain?
Should we reproduce PAB functionality, given that we directly target Plutus Core?

Partially, we need to deal with the lower level library / replicate the interface which PAB uses to create appropriate transactions, and dispatch these to on-chain code.
(minor issue) Should we have our own UI?

Architecture

glow-cardano-architecture

See Architecture.md for an overview of various libraries, executables and other key components.

In GitLab by @kwanzknoel on Aug 9, 2021, 21:45

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marked the task Follow plutus pioneer program #7 to understand latest state machine api. as completed

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kwannoel / urban-octo-carnival