@base-org/account
Version:
Base Account SDK
60 lines • 2.12 kB
JavaScript
import { PACKAGE_NAME, PACKAGE_VERSION } from '../core/constants.js';
import { standardErrors } from '../core/error/errors.js';
export async function fetchRPCRequest(request, rpcUrl) {
const requestBody = {
...request,
jsonrpc: '2.0',
id: crypto.randomUUID(),
};
const res = await fetch(rpcUrl, {
method: 'POST',
body: JSON.stringify(requestBody),
mode: 'cors',
headers: {
'Content-Type': 'application/json',
'X-Cbw-Sdk-Version': PACKAGE_VERSION,
'X-Cbw-Sdk-Platform': PACKAGE_NAME,
},
});
const { result, error } = await res.json();
if (error)
throw error;
return result;
}
/**
* Validates the arguments for an invalid request and returns an error if any validation fails.
* Valid request args are defined here: https://eips.ethereum.org/EIPS/eip-1193#request
* @param args The request arguments to validate.
* @returns An error object if the arguments are invalid, otherwise undefined.
*/
export function checkErrorForInvalidRequestArgs(args) {
if (!args || typeof args !== 'object' || Array.isArray(args)) {
throw standardErrors.rpc.invalidParams({
message: 'Expected a single, non-array, object argument.',
data: args,
});
}
const { method, params } = args;
if (typeof method !== 'string' || method.length === 0) {
throw standardErrors.rpc.invalidParams({
message: "'args.method' must be a non-empty string.",
data: args,
});
}
if (params !== undefined &&
!Array.isArray(params) &&
(typeof params !== 'object' || params === null)) {
throw standardErrors.rpc.invalidParams({
message: "'args.params' must be an object or array if provided.",
data: args,
});
}
switch (method) {
case 'eth_sign':
case 'eth_signTypedData_v2':
case 'eth_subscribe':
case 'eth_unsubscribe':
throw standardErrors.provider.unsupportedMethod();
}
}
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