Compilation issue in jsonrpsee (CPython 3.9 / rustc 1.56.0)

[RobinDavid]

Dear all,

I have tried compiling py-subwasm-bindings but it fails. It fails both via pypi and using maturin.
I have CPython 3.9 and rustc 1.56.0 (i doubt it is the issue). When compiling I obtain the following errors:

[snip]
error[E0432]: unresolved imports `jsonrpsee::http_client::traits`, `jsonrpsee::http_client::Error`, `jsonrpsee::http_client::JsonValue`
   --> /home/robin/.cargo/git/checkouts/subwasm-72d453577728ad9c/30734e7/libs/wasm-loader/src/lib.rs:8:16
    |
  8 |     http_client::{traits::Client, Error, HttpClientBuilder, JsonValue},
    |                   ^^^^^^          ^^^^^                     ^^^^^^^^^ no `JsonValue` in `http_client`
    |                   |               |
    |                   |               no `Error` in `http_client`
    |                   could not find `traits` in `http_client`
  
  
  error[E0599]: no method named `request` found for struct `HttpClient` in the current scope
    --> /home/robin/.cargo/git/checkouts/subwasm-72d453577728ad9c/30734e7/libs/wasm-loader/src/lib.rs:45:24
     |
  45 |                 rt.block_on(client.request("state_getStorage", params.into()))
     |                                    ^^^^^^^ method not found in `HttpClient`
     |
    ::: /home/robin/.cargo/git/checkouts/jsonrpsee-5ae67701a3cedc92/6dac20d/types/src/traits.rs:41:14
     |
  41 |     async fn request<'a, R>(&self, method: &'a str, params: Option<ParamsSer<'a>>) -> Result<R, Error>
     |              ------- the method is available for `HttpClient` here
     |
     = help: items from traits can only be used if the trait is in scope
  help: the following trait is implemented but not in scope; perhaps add a `use` for it:
     |
  6  | use jsonrpsee::jsonrpsee_types::traits::Client;
     |
  
  
  error[E0599]: no method named `request` found for struct `WsClient` in the current scope
    --> /home/robin/.cargo/git/checkouts/subwasm-72d453577728ad9c/30734e7/libs/wasm-loader/src/lib.rs:50:24
     |
  50 |                 rt.block_on(client.request("state_getStorage", params.into()))
     |                                    ^^^^^^^ method not found in `WsClient`
     |
    ::: /home/robin/.cargo/git/checkouts/jsonrpsee-5ae67701a3cedc92/6dac20d/types/src/traits.rs:41:14
     |
  41 |     async fn request<'a, R>(&self, method: &'a str, params: Option<ParamsSer<'a>>) -> Result<R, Error>
     |              ------- the method is available for `WsClient` here
     |
     = help: items from traits can only be used if the trait is in scope
  help: the following trait is implemented but not in scope; perhaps add a `use` for it:
     |
  6  | use jsonrpsee::jsonrpsee_types::traits::Client;
     |
  
  
  error: aborting due to 3 previous errors
  
  
  Some errors have detailed explanations: E0432, E0599.
  
  For more information about an error, try `rustc --explain E0432`.
  
  Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/usr/bin/python3'] returned non-zero exit status 1

It looks like the jsonrpsee interface have somehow changed, but as I am definitely not familiar with the project I don't really know.

Can you reproduce it, and do you have an idea of where it can be coming from ?

Robin

[niklasad1]

The problem is that subwasm is using latest master for jsonrpsee and v0.6.0 relied on old version that had many breaking changes.

So I suggest updating subwasm to a later version that will fix this I think

[RobinDavid]

Hi @niklasad1! I read the issue you opened on subwasm. I am still confused, where the fix shall be done. I am not fimiliar with the code base, but is there anything I can do to help fixing this ?

[niklasad1]

py-subwasm-bindings needs to update these subwasm crates to 0.16.1 and it should be fine I guess

[RobinDavid]

I have tried imply updating the Cargo.toml but it raises other issues:

error: no matching package found
searched package name: `sp-maybe-compressed-blob`
prerelease package needs to be specified explicitly
sp-maybe-compressed-blob = { version = "4.1.0-dev" }

So I guess there are few other tweaks to do.

@arjanz any ideas ?

[arjanz]

I forked subwasm and updated wasm-loader dependency sp-maybe-compressed-blob to 4.1.0-dev. This seems to resolve it for now, I will open a PR to subwasm

[niklasad1]

It's because 4.0.0-dev is the only one released on crates.io but you have to check in Cargo.lock what brings in "4.1.0-dev" I guess...

[arjanz]

chevdor/subwasm#35