Usage

Contents

• init

• getInfo

• setUser

• resetUser

• getBalance

• getCoinList

• getCoinPrice

• transferHbars

• contractCallFunction

• contractCallQueryFunction

• transferTokens

• createScheduleTransaction

• signScheduleId

• createAccount

• getPendingAccount

• deleteAccount

• getAccountInfo

• getNodeList

• stakeToNode

• getKeysFromMnemonic

• searchAccounts

• dropTokens

• sign

• signVerify

• ethersSign

• splitSignature

• getParamsSignature

• getTransactions

• getC14url

• exchangeGetQuotes

• swapTokens

• getExchangeStatus

• getTradeUrl

• createToken

• associateToken

• nftMint

• getTokenInfo

• brokenMnemonicEmergencyTransfer

Methods

init

Inits instance of BladeSDK for correct work with Blade API and Hedera network.

init( apiKey: string, network: string, dAppCode: string, visitorId: string = "", sdkEnvironment: SdkEnvironment = SdkEnvironment.Prod, sdkVersion: string = config.sdkVersion, completionKey?: string): Promise<InfoData>

Parameters

Name	Type	Description
apiKey	string	Unique key for API provided by Blade team.
network	string	"Mainnet" or "Testnet" of Hedera network
dAppCode	string	your dAppCode - request specific one by contacting Bladelabs team
visitorId	string	optional field to set client unique id. SDK will try to get it using fingerprintjs-pro library by default.
sdkEnvironment	SdkEnvironment	optional field to set BladeAPI environment (Prod, CI). Prod used by default.
sdkVersion	string	optional field, used for header X-SDK-VERSION
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<InfoData> - status: "success" or "error"

Example

const info = await bladeSdk.init("apiKey", "Mainnet", "dAppCode");

getInfo

This method returns basic params of initialized instance of BladeSDK. This params may useful for support.

Returned object likely will contain next fields: apiKey, dAppCode, network, visitorId, sdkEnvironment, sdkVersion, nonce

In case of support please not provide full apiKey, limit yourself to the part of the code that includes a few characters at the beginning and at the end (eg. AdR3....BFgd)

getInfo(completionKey?: string): InfoData

Parameters

Name	Type	Description
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

InfoData

Example

const info = bladeSdk.getInfo();

setUser

Set account for further operations.

Currently supported two account providers: Hedera and Magic.

Hedera: pass accountId and privateKey as hex-encoded strings with DER-prefix (302e020100300506032b657004220420...)

Magic: pass email to accountIdOrEmail and empty string as privateKey. SDK will handle Magic authentication, and finish after user click on confirmation link in email.

After successful authentication, SDK will store public and private keys in memory and use them for further operations.

After that in each method call provide empty strings to accountId and accountPrivateKey. Otherwise, SDK will override current user with provided credentials as Hedera provider.

In case of calling method with accountId and accountPrivateKey arguments, SDK will override current user with that credentials.

It's optional method, you can pass accountId and accountPrivateKey in each method call. In further releases this method will be mandatory.

setUser( accountProvider: AccountProvider, accountIdOrEmail: string, privateKey?: string, completionKey?: string): Promise<UserInfoData>

Parameters

Name	Type	Description
accountProvider	AccountProvider	Account provider (Hedera or Magic)
accountIdOrEmail	string	Hedera account id (0.0.xxxxx) or Magic email
privateKey	string	private key with DER-prefix (302e020100300506032b657004220420...) or empty string for Magic provider
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<UserInfoData>

Example

// Set account for Hedera provider
const userInfo = await bladeSdk.setUser(AccountProvider.Hedera, "0.0.45467464", "302e020100300506032b6570042204204323472EA5374E80B07346243234DEADBEEF25235235...");
// Set account for Magic provider
const userInfo = await bladeSdk.setUser(AccountProvider.Magic, "[e-mail]", "");

resetUser

Clears current user credentials.

resetUser(completionKey?: string): Promise<StatusResult>

Parameters

Name	Type	Description
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<StatusResult>

Example

const result = await bladeSdk.resetUser();

getBalance

Get hbar and token balances for specific account.

getBalance(accountId: string, completionKey?: string): Promise<BalanceData>

Parameters

Name	Type	Description
accountId	string	Hedera account id (0.0.xxxxx)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<BalanceData> - hbars: number, tokens: [{tokenId: string, balance: number}]

Example

const balance = await bladeSdk.getBalance("0.0.45467464");

getCoinList

Get list of all available coins on CoinGecko.

getCoinList(completionKey?: string): Promise<CoinListData>

Parameters

Name	Type	Description
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<CoinListData>

Example

const coinList = await bladeSdk.getCoinList();

getCoinPrice

Get coin price and coin info from CoinGecko. Search can be coin id or address in one of the coin platforms.

getCoinPrice( search: string = "hbar", currency: string = "usd", completionKey?: string): Promise<CoinInfoData>

Parameters

Name	Type	Description
search	string	coin alias (get one using getCoinList method)
currency	string	currency to get price in (usd, eur, etc.)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<CoinInfoData>

Example

const coinInfo = await bladeSdk.getCoinPrice("hedera-hashgraph", "usd");

transferHbars

Send hbars to specific account.

transferHbars( accountId: string, accountPrivateKey: string, receiverId: string, amount: string, memo: string, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
accountId	string	sender account id (0.0.xxxxx)
accountPrivateKey	string	sender's hex-encoded private key with DER-header (302e020100300506032b657004220420...). ECDSA or Ed25519
receiverId	string	receiver account id (0.0.xxxxx)
amount	string	amount of hbars to send (decimal number)
memo	string	transaction memo
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const receipt = await bladeSdk.transferHbars("0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", "0.0.10002", "1.0", "test memo");

contractCallFunction

Call contract function. Directly or via BladeAPI using paymaster account (fee will be paid by Paymaster account), depending on your dApp configuration.

contractCallFunction( contractId: string, functionName: string, paramsEncoded: string | ParametersBuilder, accountId: string, accountPrivateKey: string, gas: number = 100000, usePaymaster: boolean = false, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
contractId	string	contract id (0.0.xxxxx)
functionName	string	name of the contract function to call
paramsEncoded	string | ParametersBuilder	function argument. Can be generated with ParametersBuilder object
accountId	string	operator account id (0.0.xxxxx)
accountPrivateKey	string	operator's hex-encoded private key with DER-header, ECDSA or Ed25519
gas	number	gas limit for the transaction
usePaymaster	boolean	if true, fee will be paid by Paymaster account (note: msg.sender inside the contract will be Paymaster account)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const params = new ParametersBuilder().addString("Hello");
const contractId = "0.0.123456";
const gas = 100000;
const receipt = await bladeSdk.contractCallFunction(contractId, "set_message", params, "0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", gas, false);

contractCallQueryFunction

Call query on contract function. Similar to {@link contractCallFunction} can be called directly or via BladeAPI using Paymaster account.

contractCallQueryFunction( contractId: string, functionName: string, paramsEncoded: string | ParametersBuilder, accountId: string, accountPrivateKey: string, gas: number = 100000, usePaymaster: boolean = false, resultTypes: string[], completionKey?: string): Promise<ContractCallQueryRecordsData>

Parameters

Name	Type	Description
contractId	string	- contract id (0.0.xxxxx)
functionName	string	- name of the contract function to call
paramsEncoded	string | ParametersBuilder	- function argument. Can be generated with ParametersBuilder object
accountId	string	- operator account id (0.0.xxxxx)
accountPrivateKey	string	- operator's hex-encoded private key with DER-header, ECDSA or Ed25519
gas	number	- gas limit for the transaction
usePaymaster	boolean	- if true, the fee will be paid by paymaster account (note: msg.sender inside the contract will be Paymaster account)
resultTypes	string[]	- array of result types. Currently supported only plain data types
completionKey	string	- optional field bridge between mobile webViews and native apps

Returns

Promise<ContractCallQueryRecordsData>

Example

const params = new ParametersBuilder();
const contractId = "0.0.123456";
const gas = 100000;
const result = await bladeSdk.contractCallQueryFunction(contractId, "get_message", params, "0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", gas, false, ["string"]);

transferTokens

Send token to specific account.

transferTokens( tokenId: string, accountId: string, accountPrivateKey: string, receiverID: string, amountOrSerial: string, memo: string, usePaymaster: boolean = false, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
tokenId	string	token id to send (0.0.xxxxx)
accountId	string	sender account id (0.0.xxxxx)
accountPrivateKey	string	sender's hex-encoded private key with DER-header (302e020100300506032b657004220420...). ECDSA or Ed25519
receiverID	string	receiver account id (0.0.xxxxx)
amountOrSerial	string	amount of fungible tokens to send (with token-decimals correction) on NFT serial number
memo	string	transaction memo
usePaymaster	boolean	if true, Paymaster account will pay fee transaction. Only for single dApp configured fungible-token. In that case tokenId not used
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const receipt = await bladeSdk.transferTokens("0.0.1337", "0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", "0.0.10002", "1.0", "test memo", false);

createScheduleTransaction

Create scheduled transaction

createScheduleTransaction( accountId: string, accountPrivateKey: string, type: ScheduleTransactionType, transfers: ScheduleTransactionTransfer[], usePaymaster: boolean = false, completionKey?: string): Promise<ScheduleResult>

Parameters

Name	Type	Description
accountId	string	account id (0.0.xxxxx)
accountPrivateKey	string	optional field if you need specify account key (hex encoded privateKey with DER-prefix)
type	ScheduleTransactionType	schedule transaction type (currently only TRANSFER supported)
transfers	ScheduleTransactionTransfer[]	array of transfers to schedule (HBAR, FT, NFT)
usePaymaster	boolean	if true, Paymaster account will pay transaction fee (also dApp had to be configured for free schedules)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<ScheduleResult>

Example

const receiverAccountId = "0.0.10001";
const receiverAccountPrivateKey = "302e020100300506032b65700422042043234DEADBEEF255...";
const senderAccountId = "0.0.10002";
const tokenId = "0.0.1337";
const nftId = "0.0.1234";
const {scheduleId} = await bladeSdk.createScheduleTransaction(
    receiverAccountId,
    receiverAccountPrivateKey,
    "TRANSFER", [
        {
            type: "HBAR",
            sender: senderAccountId,
            receiver: receiverAccountId,
            value: 1 * 10**8,
        },
        {
            type: "FT",
            sender: senderAccountId,
            receiver: receiverAccountId,
            tokenId: tokenId,
            value: 1
        },
        {
            type: "NFT",
            sender: senderAccountId,
            receiver: receiverAccountId,
            tokenId: nftId,
            serial: 4
        },
    ],
    false
);

signScheduleId

Sign scheduled transaction

signScheduleId( scheduleId: string, accountId: string, accountPrivateKey: string, receiverAccountId?: string, usePaymaster: boolean = false, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
scheduleId	string	scheduled transaction id (0.0.xxxxx)
accountId	string	account id (0.0.xxxxx)
accountPrivateKey	string	optional field if you need specify account key (hex encoded privateKey with DER-prefix)
receiverAccountId	string	account id of receiver for additional validation in case of dApp freeSchedule transactions configured
usePaymaster	boolean	if true, Paymaster account will pay transaction fee (also dApp had to be configured for free schedules)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const scheduleId = "0.0.754583634";
const senderAccountId = "0.0.10002";
const senderAccountPrivateKey = "302e020100300506032b65700422042043234DEADBEEF255...";
const receiverAccountId = "0.0.10001";
const receipt = await bladeSdk.signScheduleId(scheduleId, senderAccountId, senderAccountPrivateKey, receiverAccountId, false);

createAccount

Create new Hedera account (ECDSA). Only for configured dApps. Depending on dApp config Blade create account, associate tokens, etc.

In case of not using pre-created accounts pool and network high load, this method can return transactionId and no accountId.

In that case account creation added to queue, and you should wait some time and call getPendingAccount() method.

createAccount(privateKey?: string, deviceId?: string, completionKey?: string): Promise<CreateAccountData>

Parameters

Name	Type	Description
privateKey	string	optional field if you need specify account key (hex encoded privateKey with DER-prefix)
deviceId	string	optional field for headers for backend check
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<CreateAccountData>

Example

const account = await bladeSdk.createAccount();

getPendingAccount

Get account from queue (read more at createAccount()).

If account already created, return account data.

If account not created yet, response will be same as in createAccount() method if account in queue.

getPendingAccount( transactionId: string, mnemonic: string, completionKey?: string): Promise<CreateAccountData>

Parameters

Name	Type	Description
transactionId	string	returned from createAccount() method
mnemonic	string	returned from createAccount() method
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<CreateAccountData>

Example

const account = await bladeSdk.createAccount();
if (account.status === "PENDING") {
  // wait some time and call getPendingAccount method
  account = await bladeSdk.getPendingAccount(account.transactionId, account.seedPhrase);
}

deleteAccount

Delete Hedera account. This method requires account private key and operator private key. Operator is the one who paying fees

deleteAccount( deleteAccountId: string, deletePrivateKey: string, transferAccountId: string, operatorAccountId: string, operatorPrivateKey: string, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
deleteAccountId	string	account id of account to delete (0.0.xxxxx)
deletePrivateKey	string	account private key (DER encoded hex string)
transferAccountId	string	if any funds left on account, they will be transferred to this account (0.0.xxxxx)
operatorAccountId	string	operator account id (0.0.xxxxx). Used for fee
operatorPrivateKey	string	operator's account private key (DER encoded hex string)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const receipt = await bladeSdk.deleteAccount(accountToDelete.accountId, accountToDelete.privateKey, "0.0.10001", "0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...");

getAccountInfo

Get account info.

EvmAddress is address of Hedera account if exists. Else accountId will be converted to solidity address.

CalculatedEvmAddress is calculated from account public key. May be different from evmAddress.

getAccountInfo(accountId: string, completionKey?: string): Promise<AccountInfoData>

Parameters

Name	Type	Description
accountId	string	Hedera account id (0.0.xxxxx)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<AccountInfoData>

Example

const accountInfo = await bladeSdk.getAccountInfo("0.0.10001");

getNodeList

Get Node list

getNodeList(completionKey?: string): Promise<NodeListData>

Parameters

Name	Type	Description
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<NodeListData>

Example

const nodeList = await bladeSdk.getNodeList();

stakeToNode

Stake/unstake account

stakeToNode( accountId: string, accountPrivateKey: string, nodeId: number, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
accountId	string	Hedera account id (0.0.xxxxx)
accountPrivateKey	string	account private key (DER encoded hex string)
nodeId	number	node id to stake to. If negative or null, account will be unstaked
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const receipt = await bladeSdk.stakeToNode("0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", 3);

getKeysFromMnemonic

getKeysFromMnemonic( mnemonicRaw: string, // eslint-disable-next-line @typescript-eslint/no-unused-vars lookupNames: boolean = true, completionKey?: string): Promise<PrivateKeyData>

Parameters

Name	Type	Description
mnemonicRaw	string	BIP39 mnemonic
lookupNames	boolean	not used anymore, account search is mandatory
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<PrivateKeyData>

Example

const result = await bladeSdk.getKeysFromMnemonic("purity slab doctor swamp tackle rebuild summer bean craft toddler blouse switch");

searchAccounts

Get accounts list and keys from private key or mnemonic

Supporting standard and legacy key derivation.

Every key with account will be returned.

searchAccounts(keyOrMnemonic: string, completionKey?: string): Promise<AccountPrivateData>

Parameters

Name	Type	Description
keyOrMnemonic	string	BIP39 mnemonic, private key with DER header
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<AccountPrivateData>

Example

const resultKey = await bladeSdk.searchAccounts("302e020100300506032b65700422042043234DEADBEEF255...");
const resultSeed = await bladeSdk.searchAccounts("purity slab doctor swamp tackle rebuild summer bean craft toddler blouse switch");

dropTokens

Bladelink drop to account

dropTokens( accountId: string, accountPrivateKey: string, secretNonce: string, completionKey?: string): Promise<TokenDropData>

Parameters

Name	Type	Description
accountId	string	Hedera account id (0.0.xxxxx)
accountPrivateKey	string	account private key (DER encoded hex string)
secretNonce	string	configured for dApp. Should be kept in secret
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TokenDropData>

Example

const drop = await bladeSdk.dropTokens("0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", "secret-nonce");

sign

Sign base64-encoded message with private key. Returns hex-encoded signature.

sign(messageString: string, privateKey: string, completionKey?: string): SignMessageData

Parameters

Name	Type	Description
messageString	string	base64-encoded message to sign
privateKey	string	hex-encoded private key with DER header
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

SignMessageData

Example

const signed = await bladeSdk.sign(btoa("Hello"), "302e020100300506032b65700422042043234DEADBEEF255...");

signVerify

Verify message signature by public key

signVerify( messageString: string, signature: string, publicKey: string, completionKey?: string): SignVerifyMessageData

Parameters

Name	Type	Description
messageString	string	base64-encoded message (same as provided to sign() method)
signature	string	hex-encoded signature (result from sign() method)
publicKey	string	hex-encoded public key with DER header
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

SignVerifyMessageData

Example

const signature = "27cb9d51434cf1e76d7ac515b19442c619f641e6fccddbf4a3756b14466becb6992dc1d2a82268018147141fc8d66ff9ade43b7f78c176d070a66372d655f942";
const publicKey = "302d300706052b8104000a032200029dc73991b0d9cdbb59b2cd0a97a0eaff6de...";
const valid = await bladeSdk.signVerify(btoa("Hello"), signature, publicKey);

ethersSign

Sign base64-encoded message with private key using ethers lib. Returns hex-encoded signature.

ethersSign(messageString: string, privateKey: string, completionKey?: string): Promise<SignMessageData>

Parameters

Name	Type	Description
messageString	string	base64-encoded message to sign
privateKey	string	hex-encoded private key with DER header
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<SignMessageData>

Example

const signed = await bladeSdk.ethersSign(btoa("Hello"), "302e020100300506032b65700422042043234DEADBEEF255...");

splitSignature

Split signature to v-r-s format.

splitSignature(signature: string, completionKey?: string): SplitSignatureData

Parameters

Name	Type	Description
signature	string	hex-encoded signature
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

SplitSignatureData

Example

const signature = "27cb9d51434cf1e76d7ac515b19442c619f641e6fccddbf4a3756b14466becb6992dc1d2a82268018147141fc8d66ff9ade43b7f78c176d070a66372d655f942";
const {v, r, s} = await bladeSdk.splitSignature(signature);

getParamsSignature

Get v-r-s signature of contract function params

getParamsSignature( paramsEncoded: string | ParametersBuilder, privateKey: string, completionKey?: string): Promise<SplitSignatureData>

Parameters

Name	Type	Description
paramsEncoded	string | ParametersBuilder	data to sign. Can be string or ParametersBuilder
privateKey	string	signer private key (hex-encoded with DER header)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<SplitSignatureData>

Example

const params = new ParametersBuilder().addAddress(accountId).addString("Hello");
const result = await bladeSdk.getParamsSignature(params, "302e020100300506032b65700422042043234DEADBEEF255...");

getTransactions

Get transactions history for account. Can be filtered by transaction type.

Transaction requested from mirror node. Every transaction requested for child transactions. Result are flattened.

If transaction type is not provided, all transactions will be returned.

If transaction type is CRYPTOTRANSFERTOKEN records will additionally contain plainData field with decoded data.

getTransactions( accountId: string, transactionType: string = "", nextPage: string, transactionsLimit: string = "10", completionKey?: string): Promise<TransactionsHistoryData>

Parameters

Name	Type	Description
accountId	string	account id to get transactions for (0.0.xxxxx)
transactionType	string	one of enum MirrorNodeTransactionType or "CRYPTOTRANSFERTOKEN"
nextPage	string	link to next page of transactions from previous request
transactionsLimit	string	number of transactions to return. Speed of request depends on this value if transactionType is set.
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionsHistoryData>

Example

const transactions = await bladeSdk.getTransactions("0.0.10001");

getC14url

Get configured url for C14 integration (iframe or popup)

getC14url( asset: string, account: string, amount: string, completionKey?: string): Promise<IntegrationUrlData>

Parameters

Name	Type	Description
asset	string	name (USDC or HBAR)
account	string	receiver account id (0.0.xxxxx)
amount	string	preset amount. May be overwritten if out of range (min/max)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<IntegrationUrlData>

Example

const {url} = await bladeSdk.getC14url("HBAR", "0.0.10001", "100");

exchangeGetQuotes

Get quotes from different services for buy, sell or swap

exchangeGetQuotes( sourceCode: string, sourceAmount: number, targetCode: string, strategy: CryptoFlowServiceStrategy, completionKey?: string): Promise<SwapQuotesData>

Parameters

Name	Type	Description
sourceCode	string	name (HBAR, KARATE, other token code)
sourceAmount	number	amount to swap, buy or sell
targetCode	string	name (HBAR, KARATE, USDC, other token code)
strategy	CryptoFlowServiceStrategy	one of enum CryptoFlowServiceStrategy (Buy, Sell, Swap)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<SwapQuotesData>

Example

const quotes = await bladeSdk.exchangeGetQuotes("EUR", 100, "HBAR", CryptoFlowServiceStrategy.BUY);

swapTokens

Swap tokens

swapTokens( accountId: string, accountPrivateKey: string, sourceCode: string, sourceAmount: number, targetCode: string, slippage: number, serviceId: string, completionKey?: string): Promise<SwapResult>

Parameters

Name	Type	Description
accountId	string	account id
accountPrivateKey	string	account private key
sourceCode	string	name (HBAR, KARATE, other token code)
sourceAmount	number	amount to swap
targetCode	string	name (HBAR, KARATE, other token code)
slippage	number	slippage in percents. Transaction will revert if the price changes unfavorably by more than this percentage.
serviceId	string	service id to use for swap (saucerswap, etc)
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<SwapResult>

Example

const result = await bladeSdk.swapTokens("0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...", "HBAR", 1, "SAUCE", 0.5, "saucerswapV2");

getExchangeStatus

Get exchange order status

getExchangeStatus(serviceId: string, orderId: string, completionKey?: string): Promise<TransakOrderInfo>

Parameters

Name	Type	Description
serviceId	string	service id to use for swap (saucerswap, onmeta, etc)
orderId	string	order id of operation
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransakOrderInfo>

Example

const orderInfo = await bladeSdk.getExchangeStatus("transak", "abaf28be-609f-49f4-a09a-e8e7ea7c8bd9");

getTradeUrl

Get configured url to buy or sell tokens or fiat

getTradeUrl( strategy: CryptoFlowServiceStrategy, accountId: string, sourceCode: string, sourceAmount: number, targetCode: string, slippage: number, serviceId: string, redirectUrl: string = "", completionKey?: string): Promise<IntegrationUrlData>

Parameters

Name	Type	Description
strategy	CryptoFlowServiceStrategy	Buy / Sell
accountId	string	account id
sourceCode	string	name (HBAR, KARATE, USDC, other token code)
sourceAmount	number	amount to buy/sell
targetCode	string	name (HBAR, KARATE, USDC, other token code)
slippage	number	slippage in percents. Transaction will revert if the price changes unfavorably by more than this percentage.
serviceId	string	service id to use for swap (saucerswap, onmeta, etc)
redirectUrl	string	optional url to redirect after final step
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<IntegrationUrlData>

Example

const {url} = await bladeSdk.getTradeUrl(CryptoFlowServiceStrategy.BUY, "0.0.10001", "EUR", 50, "HBAR", 0.5, "saucerswapV2", redirectUrl);

createToken

Create token (NFT or Fungible Token)

createToken( treasuryAccountId: string, supplyPrivateKey: string, tokenName: string, tokenSymbol: string, isNft: boolean, keys: KeyRecord[] | string, decimals: number, initialSupply: number, maxSupply: number = 250, completionKey?: string): Promise<CreateTokenResult>

Parameters

Name	Type	Description
treasuryAccountId	string	treasury account id
supplyPrivateKey	string	supply account private key
tokenName	string	token name (string up to 100 bytes)
tokenSymbol	string	token symbol (string up to 100 bytes)
isNft	boolean	set token type NFT
keys	KeyRecord[] | string	token keys
decimals	number	token decimals (0 for nft)
initialSupply	number	token initial supply (0 for nft)
maxSupply	number	token max supply
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<CreateTokenResult>

Example

const keys: KeyRecord[] = [
    {type: KeyType.admin, privateKey: adminKey},
    {type: KeyType.wipe, privateKey: wipeKey},
    {type: KeyType.pause, privateKey: pauseKey},
];
const treasuryAccountId = "0.0.10001";
const supplyKey = "302e020100300506032b65700422042043234DEADBEEF255...";
const result = await bladeSdk.createToken(
    treasuryAccountId, // treasuryAccountId
    supplyKey, // supplyPrivateKey
    tokenName,
    tokenSymbol,
    true, // isNft
    keys,
    0, // decimals
    0, // initialSupply
    250, // maxSupply
);

associateToken

Associate token to account. Association fee will be covered by PayMaster, if tokenId configured in dApp

associateToken( tokenIdOrCampaign: string, accountId: string, accountPrivateKey: string, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
tokenIdOrCampaign	string	token id to associate. Empty to associate all tokens configured in dApp. Campaign name to associate on demand
accountId	string	account id to associate token
accountPrivateKey	string	account private key
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const result = await bladeSdk.associateToken("0.0.1337", "0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...");
const result = await bladeSdk.associateToken("CampaignName", "0.0.10001", "302e020100300506032b65700422042043234DEADBEEF255...");

nftMint

Mint one NFT

nftMint( tokenId: string, accountId: string, accountPrivateKey: string, file: File | string, metadata: object, ipfsProviderConfig: IPFSProviderConfig, completionKey?: string): Promise<TransactionReceiptData>

Parameters

Name	Type	Description
tokenId	string	token id to mint NFT
accountId	string	token supply account id
accountPrivateKey	string	token supply private key
file	File | string	image to mint (File or base64 DataUrl image, eg.: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAA...)
metadata	object	NFT metadata (JSON object)
ipfsProviderConfig	IPFSProviderConfig	IPFS provider config
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TransactionReceiptData>

Example

const receipt = await bladeSdk.nftMint(
    tokenId,
    treasuryAccountId,
    supplyKey,
    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAARUlEQVR42u3PMREAAAgEIO1fzU5vBlcPGtCVTD3QIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIiIXCyqyi6fIALs1AAAAAElFTkSuQmCC", // TODO upload file base64
    {
        author: "GaryDu",
        other: "metadata",
        some: "more properties"
    },
    {
        provider: IPFSProvider.pinata,
        token: Pinata_JWT,
    }
);

getTokenInfo

Get token info. Fungible or NFT. Also get NFT metadata if serial provided

getTokenInfo(tokenId: string, serial: string = "", completionKey?: string): Promise<TokenInfoData>

Parameters

Name	Type	Description
tokenId	string	token id
serial	string	serial number for NFT
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<TokenInfoData>

Example

const tokenInfo = await bladeSdk.getTokenInfo("0.0.1234", "3");

brokenMnemonicEmergencyTransfer

Emergency balance transfer from broken mnemonic account to new account

Accounts with broken mnemonic sometimes were created because of hedera-sdk issue

To transfer funds from broken mnemonic account to new account a couple of steps required:

1. Create new account

2. Associate all tokens with new account that you want to transfer

3. Call this method to transfer funds to new account

4. Send some HBAR to broken mnemonic account to cover fees if needed

brokenMnemonicEmergencyTransfer(seedPhrase: string, accountId: string, receiverId: string, hbarAmount: string, tokenList: string[], checkOnly: boolean, completionKey?: string): Promise<EmergencyTransferData>

Parameters

Name	Type	Description
seedPhrase	string	mnemonic from account
accountId	string	account id (broken)
receiverId	string	new account id
hbarAmount	string	amount of HBAR to resque. Can be 0
tokenList	string[]	list of token ids to transfer all tokens. Up to 9 at once. Can be empty
checkOnly	boolean	if true, will only check if mnemonic is broken. No transfer will be made
completionKey	string	optional field bridge between mobile webViews and native apps

Returns

Promise<EmergencyTransferData>

Example

const receipt = await bladeSdk.brokenMnemonicEmergencyTransfer(brokenSeed, resqueAccountId, newAccountId, "0.5", ["0.0.1337"], false);