substrate-constructor

This is a counterpart for substrate-parser that allows construction of extrinsics based on metadata supplied. See an example of its use in Lempi project

Why not subxt?

substrate-parser + substrate-constructor system is

• much leaner (does not pull all multitude of sp-* crates, only minimal ones) - thus is more portable,
• is more modular,
• designed for clients and visualization,
• has more ideomatic extrinsic construction flow.