Support Node

[sinui0]

tlsn-js is tightly coupled to the browser environment, but people may want to use it in node such as an electron app. Provide a build config which supports node.

[waddaboo]

Hi @sinui0, when I was working on this issue I found out that the use of wasm_bindgen_rayon::init_thread_pool in lib and prover is preventing wasm-pack to build with --target nodejs.

It will return the error "wasm_bindgen::module is currently only supported with --target no-modules and --target web", which is stated to be one of the current limitations of wasm_bindgen_rayon. Reference: https://docs.rs/wasm-bindgen-rayon/latest/wasm_bindgen_rayon/#building-rust-code

How would you like this to proceed? Is it ok for the line to be removed?

[sinui0]

It is possible to run the protocol single threaded, but it will be quite slow. To try it out you can patch in this branch for the tlsn-utils-aio dependency and enable the single-threaded feature to remove the use of rayon: tlsnotary/tlsn-utils@3cb9cfb

Our next release will include the ability to force single threaded execution. I haven't looked into how else to support multi-threading when running in a node runtime.