Crate subxt_rpcs 

This crate provides a low level RPC interface to Substrate based nodes.

See the client module for a client::RpcClient which is driven by implementations of client::RpcClientT (several of which are provided behind feature flags).

See the methods module for structs which implement sets of concrete RPC calls for communicating with Substrate based nodes. These structs are all driven by a client::RpcClient.

The RPC clients/methods here are made use of in subxt. Enabling the subxt feature flag ensures that all Subxt configurations are also valid RPC configurations.

The provided RPC client implementations can be used natively (with the default native feature flag) or in WASM based web apps (with the web feature flag).

Re-exports

pub use client::RpcClient;

pub use client::RpcClientT;

pub use methods::ChainHeadRpcMethods;

pub use methods::LegacyRpcMethods;

Modules

client

RPC types and client for interacting with a substrate node.

methods

RPC methods are defined in this module. At the moment we have:

utils

A couple of utility methods that we make use of.

Macros

rpc_params

Create some RpcParams to pass to our RpcClient. RpcParams simply enforces that parameters handed to our RpcClient methods are the correct shape.

Structs

UserError

This error should be returned when the user is at fault making a call, for instance because the method name was wrong, parameters invalid or some invariant not upheld. Implementations of RpcClientT should turn any such errors into this, so that they can be handled appropriately. By contrast, Error::Client is emitted when the underlying RPC Client implementation has some problem that isn’t user specific (eg network issues or similar).

Enums

Error

This encapsulates any errors that could be emitted in this crate.

Traits

AccountId

A trait which is applied to any type that is a valid Account ID.

Hash

A trait which is applied to any type that is a valid block hash.

Header

A trait which is applied to any type that is a valid block header.

RpcConfig

Configuration used by some of the RPC methods to determine the shape of some of the inputs or responses.