substrate-api-client.md

[brenzi]

Grant Application

This application is (select one):

• Speculative (use this by default)
• an RFP response

This application is (select one):

• Public (fully)
• Public with private finances

Abstract

This application is a side-effect of our grant for developing substraTEE. During the implementation of substraTEE we also implemented a Rust websocket client for substrate, released as substrate-api-client. That client is kept very simple and serves its purpose for substaTEE, but at the current state it is more of a code sample than of a production library for general use. Examples show how to query chain state, send transfers and listen to events.

On riot, we realized that there's a heavy interest in the dev community for a substrate client written in Rust.

Features to be added to the existing code base

• dynamic API, parsing runtime metadata (current API is static)
• generic type arguments for runtime types like Balances, AccountId aso.
  • the library shall support composing extrinsics to custom runtime modules
• deploy and call ink contracts
• support custom structs for runtime

Checklist

• The grants document has been read and understood.
• The Google Form will be completed accurately. Note that the Google Form requires the pull request URL.
• Abstract (above) is succinct and complete.
• The application is being included into the correct directory: either 'targeted' or 'speculative'.
• The application includes a project description.
• The application includes all names of team members.
• The application includes a description of the team's experience.
• The application includes all necessary links (e.g. GitHub and LinkedIn)
• The "Development Roadmap" section in the application has a timeline of development ("milestones").
• The "Development Roadmap" section in the application has an estimate of funds required.
• The "Development Roadmap" section gives an indication of the team's long term plans.
• The "Development Roadmap" section includes documentation as a deliverable for at least one milestone.