Local Provider

Search…

Local Provider

This feature is available in the Hedera JavaScript SDK only. (version >=2.14.0).
LocalProvider is a quality of life implementation that creates a provider using the HEDERA_NETWORK environment variable.  
The LocalProvider() requires the following variable to be defined in the .env file. The .env file is located in the root directory of the project.
HEDERA_NETWORK
The network the wallet submits transactions to
.env
//Example .env file
HEDERA_NETWORK= previewnet/testnet/mainnet (select one network)
class LocalProvider implements Wallet 
Constructor
 new LocalProvider()
Instantiates the LocalProvider object. The local provider is built using HEDERA_NETWORK network specified in the .env file. 
Methods
<LocalProvider>.getAccountBalance() -> Promise <AccountBalance>
Returns the account balance of the account in the local wallet.
<LocalProvider>.getAccountInfo() -> Promise <AccountInfo>
Returns the account information of the account in the local wallet.
<LocalProvider>.getAccountRecords() -> Promise <AccountInfo>
Returns the last transaction records for this account using TransactionRecordQuery.
<LocalProvider>.getLedgerId()-> LedgerId
Returns the ledger ID (previewnet, testnet, or mainnet). 
<LocalProvider>.getMirrorNetwork()-> string
The mirror network the wallet is connected to.
<LocalProvider>.getNetwork()-> [key: string]: string | AccountId
Returns the network map information.
<LocalProvider>.getTransactionReceipt()-> Promise<TransactionReceipt>
Returns the transaction receipt.
<LocalProvider>.waitForReceipt()-> Promise<TransactionReceipt>
Wait for the receipt for a transaction response.
<LocalProvider>.call(<RequestT, ResponseT, OutputT>(request: Executable<RequestT, ResponseT, OutputT>)-> Promise <Output>
Sign and send a request using the wallet.
Local Wallet Example:
require("dotenv").config();
import { Wallet, LocalProvider } from "@hashgraph/sdk";
​
async function main() {
​
    const wallet = new Wallet(
        process.env.OPERATOR_ID,
        process.env.OPERATOR_KEY,
        new LocalProvider()
    );
​
    const info = await wallet.getAccountInfo();
​
    console.log(`info.key                          = ${info.key.toString()}`);
}
​
void main();
Sign with Local Wallet Example:
require("dotenv").config();
const {Wallet, LocalProvider, TransferTransaction} = require("@hashgraph/sdk");
​
async function main() {
​
    const wallet = new Wallet(
        process.env.OPERATOR_ID,
        process.env.OPERATOR_KEY,
        new LocalProvider()
    );
​
    //Transfer 1 hbar from my wallet account to account 0.0.3
    const transaction = await new TransferTransaction()
        .addHbarTransfer(wallet.getAccountId(), -1)
        .addHbarTransfer("0.0.3", 1)
        .freezeWithSigner(wallet);
    
    //Sign the transaction
    const signTransaction = await transaction.signWithSigner(wallet);
​
    //Submit the transaction
    const response = await signTransaction.executeWithSigner(wallet);
​
    //Get the receipt
    const receipt = await wallet.getProvider().waitForReceipt(response);
    
    console.log(`status: ${receipt.status.toString()}`);
}
​
main();

Wallet

Next - Documentation

Integrating a Hedera Token Service Token

Last modified 3mo ago

Copy link

Edit on GitHub

On this page

class LocalProvider implements Wallet

Constructor

Methods

class LocalProvider implements Wallet

Constructor

new LocalProvider`()`

Methods

`<LocalProvider>.``getAccountBalance()` -> Promise <AccountBalance>

`<LocalProvider>.``getAccountInfo()` -> Promise <AccountInfo>

`<LocalProvider>.``getAccountRecords()` -> Promise <AccountInfo>

`<LocalProvider>.``getLedgerId()`-> LedgerId

`<LocalProvider>.``getMirrorNetwork()`-> string

`<LocalProvider>.``getNetwork()`-> [key: string]: string | AccountId

`<LocalProvider>.``getTransactionReceipt()`-> Promise<TransactionReceipt>

`<LocalProvider>.``waitForReceipt()`-> Promise<TransactionReceipt>

Local Wallet Example:

Sign with Local Wallet Example: