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pezkuwi-subxt/substrate/client/sync-state-rpc/Cargo.toml
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Niklas Adolfsson e16ef0861f rpc: backpressured RPC server (bump jsonrpsee 0.20) (#1313)
This is a rather big change in jsonrpsee, the major things in this bump
are:
- Server backpressure (the subscription impls are modified to deal with
that)
- Allow custom error types / return types (remove jsonrpsee::core::Error
and jsonrpee::core::CallError)
- Bug fixes (graceful shutdown in particular not used by substrate
anyway)
   - Less dependencies for the clients in particular
   - Return type requires Clone in method call responses
   - Moved to tokio channels
   - Async subscription API (not used in this PR)

Major changes in this PR:
- The subscriptions are now bounded and if subscription can't keep up
with the server it is dropped
- CLI: add parameter to configure the jsonrpc server bounded message
buffer (default is 64)
- Add our own subscription helper to deal with the unbounded streams in
substrate

The most important things in this PR to review is the added helpers
functions in `substrate/client/rpc/src/utils.rs` and the rest is pretty
much chore.

Regarding the "bounded buffer limit" it may cause the server to handle
the JSON-RPC calls
slower than before.

The message size limit is bounded by "--rpc-response-size" thus "by
default 10MB * 64 = 640MB"
but the subscription message size is not covered by this limit and could
be capped as well.

Hopefully the last release prior to 1.0, sorry in advance for a big PR

Previous attempt: https://github.com/paritytech/substrate/pull/13992

Resolves https://github.com/paritytech/polkadot-sdk/issues/748, resolves
https://github.com/paritytech/polkadot-sdk/issues/627
2024-01-23 08:55:13 +00:00

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TOML

[package]
name = "sc-sync-state-rpc"
version = "0.10.0-dev"
authors.workspace = true
description = "A RPC handler to create sync states for light clients."
edition.workspace = true
license = "Apache-2.0"
homepage = "https://substrate.io"
repository.workspace = true
[lints]
workspace = true
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
[dependencies]
codec = { package = "parity-scale-codec", version = "3.6.1" }
jsonrpsee = { version = "0.20.3", features = ["client-core", "macros", "server"] }
serde = { version = "1.0.195", features = ["derive"] }
serde_json = "1.0.111"
thiserror = "1.0.48"
sc-chain-spec = { path = "../chain-spec" }
sc-client-api = { path = "../api" }
sc-consensus-babe = { path = "../consensus/babe" }
sc-consensus-epochs = { path = "../consensus/epochs" }
sc-consensus-grandpa = { path = "../consensus/grandpa" }
sp-blockchain = { path = "../../primitives/blockchain" }
sp-runtime = { path = "../../primitives/runtime" }