@solana/rpc-api

@solana/rpc-api

This package contains types that describe the methods of the Solana JSON RPC API, and utilities for creating a RpcApi implementation with sensible defaults. It can be used standalone, but it is also exported as part of the Solana JavaScript SDK @solana/web3.js@rc.

Each RPC method is described in terms of a TypeScript interface of the following form:

interface ExampleApi extends RpcApiMethods {
    getSomething(address: Address): Something;
}

A RpcApi that implements ExampleApi will ultimately expose its defined methods on any Rpc that uses it.

const rpc: Rpc<ExampleApi> = createExampleRpc(/* ... */);
const something: Something = await rpc.getSomething(address('95DpK3y3GF7U8s1k4EvZ7xqyeCkhsHeZaE97iZpHUGMN')).send();

Types

SolanaRpcApi{Devnet|Testnet|Mainnet}

These types represent the RPC methods available on a specific Solana cluster.

For instance, the test clusters support the RequestAirdropApi while mainnet does not.

Functions

createSolanaRpcApi(config)

Creates a RpcApi implementation of the Solana JSON RPC API with some default behaviours.

The default behaviours include:

• A transform that converts bigint inputs to number for compatiblity with version 1.0 of the Solana JSON RPC.
• A transform that calls the config's onIntegerOverflow handler whenever a bigint input would overflow a JavaScript IEEE 754 number. See this GitHub issue for more information.
• A transform that applies a default commitment wherever not specified

Arguments

A config object with the following properties:

• defaultCommitment: An optional default Commitment value. Given an RPC method that takes commitment as a parameter, this value will be used when the caller does not supply one.
• onIntegerOverflow(methodName, keyPath, value): void: An optional function that will be called whenever a bigint input exceeds that which can be expressed using JavaScript numbers. This is used in the default SolanaRpcApi to throw an exception rather than to allow truncated values to propagate through a program.