contructor Blade()
Creates new instance of Blade and initialize shared parameters. On this step library got unique deviceId (hashed, none specific information shared).
Parameters
const std::string& apiKey - key for API provided by Blade team. Unique per network and sdkEnvironment.
const Network& network - BladeSDK::Network::Testnet or BladeSDK::Network::Mainnet
const std::string& dAppCode - your dAppCode - request specific one by contacting us
const SdkEnvironment& sdkEnvironment - BladeApi BladeSDK::SdkEnvironment::CI or BladeSDK::SdkEnvironment::Prod
Example
Copy std::string apiKey = "GgsRv5PWfQaRQkykgSDRR3JzXN6kVRwv8RWGIes6SnH2vbSnxWMrf5AAxGbQdYbv";
BladeSDK::Network network = BladeSDK::Network::Testnet;
std::string dAppCode = "unitysdktest";
BladeSDK::SdkEnvironment sdkEnvironment = BladeSDK::SdkEnvironment::CI;
BladeSDK::Blade blade = BladeSDK::Blade(apiKey, network, dAppCode, sdkEnvironment);
std::cout << "Blade init: " << blade << std::endl; getInfo
Returns blade instance shared params (apiKey, dAppCode, network, visitorId, sdkEnvironment, sdkVersion)
Example
Copy std::cout << "Get Blade info: " << blade.getInfo() << std::endl; Output:
Copy Get Blade info: {dAppCode: "unitysdktest", network: "TESTNET", apiKey: GgsRv5PWfQaRQkykgSDRR3JzXN6kVRwv8RWGIes6SnH2vbSnxWMrf5AAxGbQdYbv, visitorId: 26b127c2fb4cf57625a3ae627ac903e4c2e0b604e6863632122cb15615c844ed, sdkEnvironment: "CI", sdkVersion: Cpp@0.6.4} createAccount
Create 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.
Example
Copy std::cout << "Create Hedera account: " << blade.createAccount() << std::endl; Output:
Copy Create Hedera account: {seedPhrase: "easily forward forward river bachelor task endorse sea inherit bonus polar sport", publicKey: "", privateKey: "3030020100300706052B8104000A0422042085FE29B639291C2534487D0663E15BADEAF5197ED6770FFDAF7FFF1EEEA27406", accountId: "0.0.5895062"} deleteAccount
Delete Hedera account
Parameters
std::string deleteAccountId - account id of account to delete (0.0.xxxxx)
std::string deletePrivateKey - account private key ECDSA (DER encoded hex string)
std::string transferAccountId - funds receiver account id. If any funds left on account, they will be transferred to this account (0.0.xxxxx)
std::string operatorAccountId - operator account id (0.0.xxxxx). Used for fee
std::string operatorPrivateKey - operator's account private key ECDSA (DER encoded hex string)
Example
Copy std::cout << "Delete account: " << blade.deleteAccount("0.0.5895062", "3030020100300706052B8104000A0422042085FE29B639291C2534487D0663E15BADEAF5197ED6770FFDAF7FFF1EEEA27406", "0.0.346533", "0.0.346533", "3030020100300706052b8104000a04220420ebccecef769bb5597d0009123a0fd96d2cdbe041c2a2da937aaf8bdc8731799b") << std::endl; Output:
Copy Delete account: {transactionId: "0.0.346533@1700131320.242081000", status: "SUCCESS", transactionReceipt: {Object TransactionReceipt}} 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.
Parameters
std::string accountId - Hedera account id (0.0.xxxxx)
Example
Copy std::cout << "Get account info: " << blade.getAccountInfo("0.0.346533") << std::endl; Output:
Copy Get account info: {accountId: "0.0.346533", evmAddress: "0x11f8d856ff2af6700ccda4999845b2ed4502d8fb", publicKey: "029dc73991b0d9cdbb59b2cd0a97a0eaff6de801726cb39804ea9461df6be2dd30"} getBalance
Get hbar and token balances for specific account.
Parameters
std::string accountId - Hedera account id (0.0.xxxxx)
Example
Copy std::cout << "Account balance: " << blade.getBalance(accountId) << std::endl; Output:
Copy Account balance: {balance: 1000000000000, tokens: [{token_id: "0.0.59042", balance: 0}, {token_id: "0.0.61266", balance: 0}, {token_id: "0.0.416406", balance: 1000000000}, {token_id: "0.0.416458", balance: 1000000000}, {token_id: "0.0.416487", balance: 99849591049227}, {token_id: "0.0.433870", balance: 9816}, {token_id: "0.0.447892", balance: 20000000}, {token_id: "0.0.652199", balance: 999999952}]} importAccount
Get ECDSA private key from mnemonic. Also try to find accountIds based on public key if lookupAccounts is true. Returned keys with DER header. EvmAddress computed from Public key.
Parameters
std::string seedPhrase - BIP39 mnemonic
bool lookupAccounts - if true, get accountIds from mirror node by public key
Example
Copy std::cout << "Import account: " << blade.importAccount("best soccer little verify love ladder else kick depth mesh silly desert", true) << std::endl; Output:
Copy Import account: {privateKey: "3030020100300706052B8104000A04220420A7E529D9C0EA996FF62F9E41D5BE81FD67489E28B62CE22420BE130626D0EF40", publicKey: "302D300706052B8104000A0322000283529A9F1353613201042305827FB38110E94C3FD559E3CF9B5645DBE0E38368", seedPhrase: "best soccer little verify love ladder else kick depth mesh silly desert", accounts: [0.0.2018696]} transferHbars
Send hbars to specific account.
Parameters
std::string accountId - sender account id (0.0.xxxxx)
std::string accountPrivateKey - sender's hex-encoded private key with DER-header (302e020100300506032b657004220420...) ECDSA
std::string recieverAccount - receiver account id (0.0.xxxxx)
std::string amount - amout of hbars to send
std::string memo - transaction memo
Example
Copy std::cout << "Transfer hbars: " << blade.transferHbars("0.0.346533", "3030020100300706052b8104000a04220420ebccecef769bb5597d0009123a0fd96d2cdbe041c2a2da937aaf8bdc8731799b", "0.0.346530", "1.5", "cpp-sdk-test") << std::endl; Output:
Copy Transfer hbars: {transactionId: "0.0.346533@1700129947.125393000", status: "SUCCESS", transactionReceipt: {Object TransactionReceipt}} transferTokens
Send token to specific account.
Parameters
std::string tokenId - token id to send (0.0.xxxxx)
std::string accountId - sender account id (0.0.xxxxx)
std::string accountPrivateKey - sender's hex-encoded private key with DER-header (302e020100300506032b657004220420...). ECDSA
std::string receiverId - receiver account id (0.0.xxxxx)
std::string amount - amount of tokens to send
std::string memo - transaction memo
bool freeTransfer - if true, Blade will pay fee transaction. Only for single dApp configured token. In that case tokenId not used
Example
Copy std::cout << "Transfer tokens (paid): " << blade.transferTokens("0.0.433870", "0.0.346533", "3030020100300706052b8104000a04220420ebccecef769bb5597d0009123a0fd96d2cdbe041c2a2da937aaf8bdc8731799b", "0.0.346530", "1", "cpp-sdk-paid-token-transfer", false) << std::endl; Output:
Copy Transfer tokens (paid): {transactionId: "0.0.346533@1700130243.724897000", status: "SUCCESS", transactionReceipt: {Object TransactionReceipt}} sign
Sign message with private key. Returns hex-encoded signature.
Parameters
std::string message - hex/base64/string message to sign
std::string signerKey - ECDSA hex-encoded private key with DER header
std::string encoding - message encoding: hex, base64 or string
Example
Copy std::string message = "hello";
std::string messageBase64 = BladeSDK::UtilService::stringToBase64(message);
std::string messageHex = BladeSDK::UtilService::vectorToHex(BladeSDK::UtilService::stringToVector(message));
std::cout << "Sign str (" << message << "): " << blade.sign(message, privateKeyHex, "string") << std::endl;
std::cout << "Sign base64 (" << messageBase64 << "): " << blade.sign(messageBase64, privateKeyHex, "base64") << std::endl;
std::cout << "Sign hex (" << messageHex << "): " << blade.sign(messageHex, privateKeyHex, "hex") << std::endl; Output:
Copy Sign str (hello): {signedMessage: "7df5b75438e479540a6852b1cb2146de2b0e7e998cb947d2d52a83841afeed6d8d48585887b9c7acae5019d8bce3d97dad06cee0f2aad9d313c03dbdc07b848e"}
Sign base64 (aGVsbG8=): {signedMessage: "41cb875722cc5f6c03989bbf4c49fa9fda3d69b4911864513347fe388c0b93270fa0d7a4385d31d4feec19750e118f101a3ab9c9033748782be01336b007847c"}
Sign hex (68656c6c6f): {signedMessage: "350b2f5e5a182f55cbad6bd03a3fa5cfb05a3da52af7db94161ff7a51fa531e81d035979125cef242ac72b8d3b54c8898245bdf23df14b9df4f06f161f0d9d1d"} signVerify
bool signVerify(std::string message, std::string signatureHex, std::string key, std::string encoding)
Verify message signature by public key.
Parameters
std::string message - hex/base64/string message to sign
std::string signatureHex - hex-encoded signature
std::string key - ECDSA hex-encoded public key with DER header
std::string encoding - message encoding: hex, base64 or string
Example
Copy std::string message = "hello";
std::string messageBase64 = BladeSDK::UtilService::stringToBase64(message);
std::string messageHex = BladeSDK::UtilService::vectorToHex(BladeSDK::UtilService::stringToVector(message));
BladeSDK::SignMessageData signature = blade.sign(message, privateKeyHex, "string");
std::cout << "Sign str (" << message << "): " << signature << std::endl;
std::cout << "Valid?: " << blade.signVerify(message, signature.signedMessage, publicKeyHex, "string") << std::endl;
signature = blade.sign(messageBase64, privateKeyHex, "base64");
std::cout << "Sign base64 (" << messageBase64 << "): " << signature << std::endl;
std::cout << "Valid?: " << blade.signVerify(messageBase64, signature.signedMessage, publicKeyHex, "base64") << std::endl;
signature = blade.sign(messageHex, privateKeyHex, "hex");
std::cout << "Sign hex (" << messageHex << "): " << signature << std::endl;
std::cout << "Valid?: " << blade.signVerify(messageHex, signature.signedMessage, publicKeyHex, "hex") << std::endl; Output:
Copy Sign str (hello): {signedMessage: "57a43fe4c9b46b7c3455558845d835830462efdd685d4397806cb34730ed206764f1c53cbefc69ade98a04998f5518ef5365dfde38c80eee86663e6f366157ec"}
Valid?: 1
Sign base64 (aGVsbG8=): {signedMessage: "4b8c25583e9aa7081bb22299319a0c19c233bfa6b4e2cf1d4cf603c49c8ef51308be68b6586f3bbb31e595d9f0cf452e77667dbcc1bb8a9a3449600e786d6b3d"}
Valid?: 1
Sign hex (68656c6c6f): {signedMessage: "1f83a26c1fee4a04789e1c327180fb03e6ff85ec115fa94d845e501c22c9d1e1467b7adda0d3858b3c707adf2e360f400f7e526517e66f86e9479a343423a632"}
Valid?: 1 contractCallFunction
Call contract function. Directly or via Blade Payer account (fee will be paid by Blade), depending on your dApp configuration.
Parameters
std::string contractId - contract id (0.0.xxxxx)
std::string functionName - name of the contract function to call
ContractFunctionParameters parameters - function arguments. Can be generated with ContractFunctionParameters object
std::string accountId - operator account id (0.0.xxxxx)
std::string accountPrivateKey - operator's hex-encoded private key with DER-header, ECDSA
long long gas - gas limit for the transaction
bool bladePayFee - if true, fee will be paid by Blade (note: msg.sender inside the contract will be Blade Payer account)
Example
Copy ContractFunctionParameters params = ContractFunctionParameters().addString("cpp-sdk-test [self pay]");
std::cout << "Contract call: " << blade.contractCallFunction("0.0.416245", "set_message", params, "0.0.346533", "3030020100300706052b8104000a04220420ebccecef769bb5597d0009123a0fd96d2cdbe041c2a2da937aaf8bdc8731799b", 150000, false) << std::endl; Output:
Copy Contract call: {transactionId: "0.0.346533@1700133017.81407000", status: "SUCCESS", transactionReceipt: {Object TransactionReceipt}} contractCallQueryFunction
Call query on contract function. Similar to contractCallFunction can be called directly only.
Parameters
std::string contractId - contract id (0.0.xxxxx)
std::string functionName - name of the contract function to call
ContractFunctionParameters parameters - function argument. Can be generated with ContractFunctionParameters object
std::string accountId - operator account id (0.0.xxxxx)
std::string accountPrivateKey - operator's hex-encoded private key with DER-header, ECDSA
long long gas - gas limit for the transaction
double maxQueryPayment - max query payment amount
std::vector<std::string> returnTypes - array of result types
Example
Copy ContractFunctionParameters params = ContractFunctionParameters();
ContractFunctionResult res = blade.contractCallQueryFunction("0.0.416245", "get_message", params, "0.0.346533", "3030020100300706052b8104000a04220420ebccecef769bb5597d0009123a0fd96d2cdbe041c2a2da937aaf8bdc8731799b", 50000, 1.5, {"string", "int32"});
std::cout << "Contract call query. string: " << res.getString(0) << ", int32: " << std::to_string(res.getInt32(1)) << std::endl; Output:
Copy Contract call query. string: cpp-sdk-test [self pay], int32: 23 getC14url
std::string getC14url(std::string asset, std::string account, std::string amount)
Get configured url for C14 integration (iframe or popup)
Parameters
std::string asset - name (USDC, HBAR, etc)
std::string account - receiver account id (0.0.xxxxx)
std::string amount - preset amount. May be overwritten if out of range (min/max)
Example
Copy std::cout << "Get c14 url: " << blade.getC14url("karate", "0.0.123456", "1234") << std::endl; Output:
Copy Get c14 url: https://pay.c14.money/?clientId=00ce2e0a-ee66-4971-a0e9-b9d627d106b0&targetAssetId=057d6b35-1af5-4827-bee2-c12842faa49e&targetAssetIdLock=true&sourceAmount=1234"eAmountLock=true&targetAddress=0.0.123456&targetAddressLock=true 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.
Parameters
std::string accountId - account id to get transactions for (0.0.xxxxx)
std::string transactionType - one of available values (CRYPTOTRANSFER, CONTRACTCALL, etc...)
std::string nextPage - link to next page of transactions from previous request
int transactionsLimit - number of transactions to return. Speed of request depends on this value if transactionType is set.
Example
Copy BladeSDK::TransactionsHistoryData history = blade.getTransactions(accountId, "CRYPTODELETE", "", 2);
std::cout << "getTransactions (CRYPTODELETE)[" << history.transactions.size() << "]: " << history << std::endl << std::endl;
history = blade.getTransactions(accountId, "CRYPTODELETE", "/api/v1/transactions?account.id=0.0.346533&limit=25×tamp=lt:1700131206.544183003", 2);
std::cout << "getTransactions (CRYPTODELETE)[" << history.transactions.size() << "]: " << history << std::endl;
Output:
Copy etTransactions (CRYPTODELETE)[2]: {transactions: [{transactionId: "0.0.346533-1700131320-242081000", type: "CRYPTODELETE", transfers: [{amount: 415840, account: "0.0.6", token_id: ""}, {amount: 11391169, account: "0.0.98", token_id: ""}, {amount: 1265685, account: "0.0.800", token_id: ""}, {amount: -13072694, account: "0.0.346533", token_id: ""}], nftTransfers: [], memo: "", fee: 13072694, showDetailed: 0, consensusTimestamp: "1700131320.931657486"}, {transactionId: "0.0.346533-1700131205-926001000", type: "CRYPTODELETE", transfers: [{amount: 415840, account: "0.0.3", token_id: ""}, {amount: 11391169, account: "0.0.98", token_id: ""}, {amount: 1265685, account: "0.0.800", token_id: ""}, {amount: -13072694, account: "0.0.346533", token_id: ""}], nftTransfers: [], memo: "", fee: 13072694, showDetailed: 0, consensusTimestamp: "1700131206.544183003"}], nextPage: "/api/v1/transactions?account.id=0.0.346533&limit=25×tamp=lt:1700131206.544183003"}
getTransactions (CRYPTODELETE)[2]: {transactions: [{transactionId: "0.0.346533-1700131152-542465000", type: "CRYPTODELETE", transfers: [{amount: 415840, account: "0.0.9", token_id: ""}, {amount: 11391169, account: "0.0.98", token_id: ""}, {amount: 1265685, account: "0.0.800", token_id: ""}, {amount: -13072694, account: "0.0.346533", token_id: ""}], nftTransfers: [], memo: "", fee: 13072694, showDetailed: 0, consensusTimestamp: "1700131153.029236922"}, {transactionId: "0.0.346533-1700131107-295252000", type: "CRYPTODELETE", transfers: [{amount: 415840, account: "0.0.6", token_id: ""}, {amount: 11391169, account: "0.0.98", token_id: ""}, {amount: 1265685, account: "0.0.800", token_id: ""}, {amount: -13072694, account: "0.0.346533", token_id: ""}], nftTransfers: [], memo: "", fee: 13072694, showDetailed: 0, consensusTimestamp: "1700131108.024235003"}], nextPage: "/api/v1/transactions?account.id=0.0.346533&limit=25×tamp=lt:1700131108.024235003"} 