Contract Spec: Add CLI command that generates a TypeScript type from .wasm.

[leighmcculloch]

We should:

• In js-stellar-base, add xdr.ScVal.toJSON(val, spec), and xdr.ScVal.fromJSON(json, spec), inspired by the strval.rs code in this repo
  • Having this in js-stellar-base allows people to use the conversions even without the client binding generation.
• Add typescript generation in rs-soroban-sdk, similar to how we generate rust, using the above js-stellar-base conversions to do parsing.
  • Similar to Rough first pass at generating typescript contract bindings rs-soroban-sdk#881
• Add a soroban contract bindings --wasm contract.wasm --output typescript > contract.ts
• Future: Research other libraries in other ecosystems and figure out a light-weight, but usable way to parse transaction results based on the spec as well. Write a follow-up issue for this.
  (updated 2022-04-06)

[paulbellamy]

Blocked on https://github.com/stellar/rs-stellar-contract-sdk/issues/168

[paulbellamy]

stellar/js-stellar-base#538

[smac711]

@paulbellamy is this still blocked and if so. What is the plan for unblocking it?

Does this require a priority update?
Is this required for Meridian?

[paulbellamy]

It was blocked on https://github.com/stellar/rs-stellar-contract-sdk/issues/168, which is closed now, so this is now unblocked.

I'd say it is completion/polish/nice-to-have for meridian. Not strictly necessary, though.

[paulbellamy]

And actually, in the platform sprint @tamirms had marked it as in-progress so I updated that in the soroban sprint to match.

[ire-and-curses]

DX nice-to-have

[paulbellamy]

stellar/rs-soroban-sdk#881

[paulbellamy]

Related: I did a little prototype on generating typescript directly from xdrgen in https://github.com/stellar/xdrgen/tree/typescript, but it needs some underlying library support for serialization.

[Shaptic]

@paulbellamy this will be closed by stellar/rs-soroban-sdk#871 then #644 afaict, correct?

[paulbellamy]

Yes!