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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

asset-hub-rococo

rpc: backpressured RPC server (bump jsonrpsee 0.20) (#1313 )

2024-01-23 08:55:13 +00:00

asset-hub-westend

rpc: backpressured RPC server (bump jsonrpsee 0.20) (#1313 )

2024-01-23 08:55:13 +00:00

common

Enable cross-chain NFT transfers on asset-hub (#2796 )

2024-01-19 15:14:26 +00:00

test-utils

Enable async backing on asset-hub-rococo (#2826 )

2024-01-22 10:29:13 +00:00

README.md

docs: fix typos (#2193 )

2023-11-07 13:11:06 +01:00

README.md

Assets Parachain

Implementation of Asset Hub, a blockchain to support generic assets in the Polkadot and Kusama networks. Asset Hub was formerly known as "Statemint".

Asset Hub allows users to:

Deploy promise-backed assets, both fungible and non-fungible, with a DOT/KSM deposit.
Set admin roles to manage assets and asset classes.
Register assets as "self-sufficient" if the Relay Chain agrees, i.e. gain the ability for an asset to justify the existence of accounts sans DOT/KSM.
Pay transaction fees using sufficient assets.
Transfer (and approve transfer) assets.
Interact with the chain via its transactional API or XCM.

Asset Hub must stay fully aligned with the Relay Chain it is connected to. As such, it will accept the Relay Chain's governance origins as its own.

See the article on Asset Hub as common good parachain for a higher level description.

Wallets, custodians, etc. should see the Polkadot Wiki's Integration Guide for details about support.