@dfinity/ledger v1.0.0
ledger-js
A library for interfacing with ICRC ledgers on the Internet Computer.
Table of contents
Installation
You can use ledger-js
by installing it in your project.
npm i @dfinity/ledger
The bundle needs peer dependencies, be sure that following resources are available in your project as well.
npm i @dfinity/agent @dfinity/candid @dfinity/principal @dfinity/utils
Usage
The features are available through the class LedgerCanister
. It has to be instantiated with a canister ID.
e.g. fetching a token metadata.
import { IcrcLedgerCanister } from "@dfinity/ledger";
import { createAgent } from "@dfinity/utils";
const agent = await createAgent({
identity,
host: HOST,
});
const { metadata } = LedgerCanister.create({
agent,
canisterId: MY_LEDGER_CANISTER_ID,
});
const data = await metadata();
Features
ledger-js
implements following features:
:toolbox: Functions
:gear: encodeIcrcAccount
Encodes an Icrc-1 account compatible into a string. Formatting Reference: https://github.com/dfinity/ICRC-1/pull/55/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R238
Function | Type |
---|---|
encodeIcrcAccount | ({ owner, subaccount, }: IcrcAccount) => string |
Parameters:
account
: : Principal, subaccount?: Uint8Array }
:gear: decodeIcrcAccount
Decodes a string into an Icrc-1 compatible account. Formatting Reference: https://github.com/dfinity/ICRC-1/pull/55/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R268
Function | Type |
---|---|
decodeIcrcAccount | (accountString: string) => IcrcAccount |
Parameters:
accountString
: string
:factory: IcrcLedgerCanister
Constructors
public
Methods
:gear: create
Method | Type |
---|---|
create | (options: IcrcLedgerCanisterOptions<_SERVICE>) => IcrcLedgerCanister |
:gear: metadata
The token metadata (name, symbol, etc.).
Method | Type |
---|---|
metadata | (params: QueryParams) => Promise<IcrcTokenMetadataResponse> |
:gear: transactionFee
The ledger transaction fees.
Method | Type |
---|---|
transactionFee | (params: QueryParams) => Promise<bigint> |
:gear: balance
Returns the balance of the given account.
Method | Type |
---|---|
balance | (params: BalanceParams) => Promise<bigint> |
Parameters:
params
: The parameters to get the balance of an account.
:gear: transfer
Transfers tokens from the sender to the given account.
Method | Type |
---|---|
transfer | (params: TransferParams) => Promise<bigint> |
Parameters:
params
: The parameters to transfer tokens.
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