55 docs tagged with "sdk-core"

The sdk-core Address toolkit, bech32/hex conversion, raw public key, shard computation, isSmartContract, and the HRP. Fully offline, no network.

Turn any transaction into a guarded one with TransactionComputer.applyGuardian and co-sign it, asserting version, options, and guardian fields on devnet.

Block until a transaction matches a predicate you write with awaitTransactionOnCondition, tuning the poll interval and timeout via AwaitingOptions.

Block until an account matches a predicate you write with awaitAccountOnCondition, tuning the poll interval and timeout via AwaitingOptions.

A sender who has no EGLD for gas, and a relayer who pays it, both signing the same transaction, devnet-verified, with V1/V2 deprecation flagged.

Call a mutable contract endpoint with plain JS arguments, auto-converted to typed values by sdk-core's NativeSerializer, verified against live devnet.

Call a payable contract endpoint, attaching EGLD via nativeTransferAmount, against a real live devnet contract with sdk-core's controller pattern.

Claim delegation rewards to your wallet or re-delegate (compound) them into the same MultiversX staking contract, with sdk-core DelegationController.

Predict a smart contract's address before deploying it from the deployer address and deployment nonce with sdk-core's AddressComputer, fully offline.

Construct an ApiNetworkProvider or ProxyNetworkProvider, tune clientName and timeout, or get one from an entrypoint. Both share one INetworkProvider interface.

Create a new MultiversX delegation (staking-provider) contract with sdk-core DelegationController and factory, then parse the outcome for its address.

Create a MultiversX governance proposal with sdk-core's GovernanceController and factory, reading the live proposal fee from getConfig first.

Build an sdk-core Account from a KeyPair, a raw secret key, or a mnemonic, fully offline, and learn which named constructors are sync versus async.

Call any API or Proxy endpoint the typed provider methods do not cover, via doGetGeneric and doPostGeneric, for economics, stats, and a raw VM query.

Decode a smart contract's emitted events into named typed fields with sdk-core's TransactionEventsParser and an ABI, verified against a real event.

Decode raw contract return data and encode or decode custom struct and enum types with sdk-core's BinaryCodec, getStruct, and getEnum, fully offline.

Delegate (stake) EGLD to an existing MultiversX delegation contract with sdk-core DelegationController and factory, then parse the staked amount.

Deploy a MultiversX multisig smart contract with the SDK JS v15 MultisigController or MultisigTransactionsFactory.

Deploy a smart contract from WASM bytecode and constructor arguments with sdk-core's controller and factory, then parse the outcome for the new address.

Fetch the latest block and a block by hash via ApiNetworkProvider, and a block by shard and nonce via ProxyNetworkProvider. Verified live against mainnet.

Read any address's nonce, balance, username, and guarded flag, plus its key-value storage, through a network provider. Verified live against mainnet.

Read the tokens an account holds, all fungible ESDTs, all NFTs and SFTs, and one specific token balance, via a network provider. Verified live.

Read the static network config (gas costs, shard count, round duration) and the live per-shard status (block nonce, epoch, round) via a network provider.

Read a token's definition, name, ticker, decimals, owner and property flags, for a fungible token and for an NFT or SFT collection. Verified live.

Original SDK JS v15 examples for reading network, block, account, transaction, token, and smart-contract data through API and Proxy providers.

Generate a BIP39 mnemonic with sdk-core and derive secret keys at several address indices, fully offline, with a determinism check and secrecy notes.

Activate guardianship with GuardAccount and remove it with UnGuardAccount via sdk-core, including the guardian co-sign requirement, verified on devnet.

Opt a transaction into hash signing with sdk-core, assert the version/options bits, and sign the hash correctly. Includes a real v15.4.1 signing trap.

Issue a fungible ESDT token with sdk-core's TokenManagementController against DevnetEntrypoint, payload hand-verified against real devnet.

Issue an NFT collection and mint an NFT into it with sdk-core's TokenManagementController, every field hand-verified against real devnet.

Issue a semi-fungible (SFT) collection, create an SFT batch, then add and burn quantity with sdk-core's TokenManagementController on devnet.

Load a contract's ABI from a file, a URL, or by hand with sdk-core's Abi/AbiRegistry, then introspect its endpoints and argument types.

Increase and decrease a fungible ESDT's circulating supply with ESDTLocalMint and ESDTLocalBurn via sdk-core, plus a real SDK method-name typo.

Fetch an account's nonce from the network once, then increment it locally for every transaction sent afterward in a batch, plus recovery from a nonce gap.

Send EGLD plus two or more ESDT/NFT/SFT tokens in one transaction with sdk-core's TransfersController, every field decoded against real devnet.

Propose a multisig action, a transfer-execute or an add-board-member, with sdk-core's MultisigController and factory, then parse the new action id.

Query a smart contract's read-only view with sdk-core's SmartContractController, no wallet, no gas, no transaction, verified against live devnet.

Read a MultiversX staking-provider contract state with read-only queries: total stake, service fee, a delegator active stake and claimable rewards.

Read a MultiversX multisig's quorum, board members, and pending actions with their signers using sdk-core's MultisigController, no wallet needed.

Save a wallet to an encrypted keystore and load it back with a password, for both secret-key and mnemonic keystores, with sdk-core. Fully offline.

Save a wallet to a PEM file and load it back via Account and UserPem with sdk-core. PEM is unencrypted and dev-only; fully offline, no network.

Save key-value pairs in an account's on-chain storage with sdk-core's AccountController or AccountTransactionsFactory.

Send a fungible ESDT token using sdk-core's TransfersController and the Token/TokenTransfer classes against DevnetEntrypoint, no browser required.

Send a native EGLD transfer with sdk-core's TransfersController against DevnetEntrypoint, the backend/script pattern for when your own code holds the key.

Nominate a guardian for an account with SetGuardian via sdk-core's AccountController and AccountTransactionsFactory, payload verified on devnet.

Set and unset the local-mint, local-burn, and ESDT-transfer roles on a fungible ESDT with sdk-core, including a confirmed v15.4.1 unset-role bug.

Sign a transaction offline with a raw secret key and verify it three ways with sdk-core, including tamper checks. No devnet, no broadcast.

Sign a message with an account or secret key and verify it with a UserVerifier, fully offline, including proof the check fails on a tampered signature.

Sign a proposed multisig action to quorum and perform it with sdk-core's MultisigController and factory, reading its live signer state first.

The canonical sdk-dapp v5 sign, send, and track flow. provider.signTransactions then TransactionManager.send and .track, with proper nonce handling.

Ask the network what a transaction would cost with estimateTransactionCost and what it would do with simulateTransaction, without ever broadcasting it.

Freeze/unfreeze an account's token, pause/unpause globally, and wipe with sdk-core, includes the confirmed v15.4.1 wrong-receiver bug and its fix.

Exit a MultiversX delegation: unDelegate an amount, wait out the unbonding period, then withdraw it, using sdk-core DelegationController and factory.

Upgrade a deployed smart contract to new WASM bytecode with sdk-core's controller and factory, and read the upgradeContract builtin wire payload.

Vote on and close a MultiversX governance proposal with sdk-core's GovernanceController and factory, reading a live proposal's tallies first.