
Research
Malicious npm Packages Impersonate Flashbots SDKs, Targeting Ethereum Wallet Credentials
Four npm packages disguised as cryptographic tools steal developer credentials and send them to attacker-controlled Telegram infrastructure.
@rmrk-team/rmrk-balance-js
Advanced tools
Read balances of the chains that support the $RMRK token. The following chains are currently supported:
Read balances of the chains that support the $RMRK token. The following chains are currently supported:
yarn add | npm install @rmrk-team/rmrk-balance-js
npm install -g @rmrk-team/rmrk-balance-js
rmrk-balance -a YOUR_ADDRESS
import * as $RMRK from "@rmrk-team/rmrk-balance-js";
async function main() {
const address = "CAeCc....nK3B";
$RMRK.provideDefaults();
const [moonbalance, karurabalance] = await Promise.all([
$RMRK.moonriver.balance(address),
$RMRK.karura.balance(address),
]);
const total = $RMRK.concat(moonbalance, karurabalance);
console.log($RMRK.format(total));
}
main();
import { combineLatest, map } from "rxjs";
import * as $RMRK from "@rmrk-team/rmrk-balance-js";
const address = "CAeCc....nK3B";
// Get a stream of each RMRK balance state
const statemineBalance$ = $RMRK.statemine.balance$(address);
const moonriverBalance$ = $RMRK.moonriver.balance$(address);
const karuraBalance$ = $RMRK.karura.balance$(address);
const bifrostBalance$ = $RMRK.bifrost.balance$(address);
$RMRK.provideDefaults();
// Combine into total for verification.
const total$ = combineLatest([
statemineBalance$,
moonriverBalance$,
karuraBalance$,
bifrostBalance$,
]).pipe(
map(([statemine, moonriver, karura, bifrost]) => {
return $RMRK.concat(statemine, moonriver, karura, bifrost);
})
);
// Print total user RMRK balance
total$.subscribe((total) => {
console.log($RMRK.format(total.balance));
});
import * as $RMRK from "@rmrk-team/rmrk-balance-js";
$RMRK.moonriver.provideContext(
ApiPromise.create({
provider: new WsProvider("wss://wss.moonriver.moonbeam.network"),
})
);
$RMRK.moonriver.balance("0xfv...6c1h").then((balance) => {
console.log($RMRK.format(balance));
});
balance$
API : Error handlingimport {
catchError,
combineLatest,
map,
Observable,
of,
throwError,
} from "rxjs";
import * as $RMRK from "@rmrk-team/rmrk-balance-js";
const address = "...";
$RMRK.provideDefaults();
const addressErrorCatcher = catchError<
$RMRK.Balance,
Observable<$RMRK.FormatError>
>((error: unknown) => {
if ($RMRK.FormatError.is(error)) {
return of(error);
}
return throwError(() => error);
});
const statemineBalance$ = $RMRK.statemine
.balance$(address)
.pipe(addressErrorCatcher);
const bifrostBalance$ = $RMRK.bifrost
.balance$(address)
.pipe(addressErrorCatcher);
const total$ = combineLatest([statemineBalance$, bifrostBalance$]).pipe(
map((balances) => {
const total = balances.reduce<$RMRK.Balance>((acc, next) => {
return $RMRK.concat(
acc,
$RMRK.FormatError.is(next) ? $RMRK.empty() : next
);
}, $RMRK.empty());
return total;
})
);
total$.subscribe((total) => {
console.log($RMRK.format(total));
});
FAQs
Read balances of the chains that support the $RMRK token. The following chains are currently supported:
We found that @rmrk-team/rmrk-balance-js demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 4 open source maintainers collaborating on the project.
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