### Table of Contents - [Transaction][1] - [Parameters][2] - [Properties][3] - [Examples][4] - [toCreationAddress][5] - [hash][6] - [Parameters][7] - [getChainId][8] - [getSenderAddress][9] - [getSenderPublicKey][10] - [verifySignature][11] - [sign][12] - [Parameters][13] - [getDataFee][14] - [getBaseFee][15] - [getUpfrontCost][16] - [validate][17] - [Parameters][18] - [serialize][19] - [from][20] - [Properties][21] ## Transaction Creates a new transaction object. ### Parameters - `data` **([Buffer][22] \| [Array][23] \| [Object][24])** a transaction can be initiailized with either a buffer containing the RLP serialized transaction or an array of buffers relating to each of the tx Properties, listed in order below in the exmple.Or lastly an Object containing the Properties of the transaction like in the Usage example.For Object and Arrays each of the elements can either be a Buffer, a hex-prefixed (0x) String , Number, or an object with a toBuffer method such as Bignum - `data.nonce` **[Buffer][22]** nonce number - `data.gasLimit` **[Buffer][22]** transaction gas limit - `data.gasPrice` **[Buffer][22]** transaction gas price - `data.to` **[Buffer][22]** to the to address - `data.value` **[Buffer][22]** the amount of irc sent - `data.data` **[Buffer][22]** this will contain the data of the message or the init of a contract - `data.v` **[Buffer][22]** EC recovery ID - `data.r` **[Buffer][22]** EC signature parameter - `data.s` **[Buffer][22]** EC signature parameter - `data.chainId` **[Number][25]** EIP 155 chainId - mainnet: 1, ropsten: 3 ### Properties - `raw` **[Buffer][22]** The raw rlp encoded transaction ### Examples ```javascript var rawTx = { nonce: '00', gasPrice: '09184e72a000', gasLimit: '2710', to: '0000000000000000000000000000000000000000', value: '00', data: '7f7465737432000000000000000000000000000000000000000000000000000000600057', v: '1c', r: '5e1d3a76fbf824220eafc8c79ad578ad2b67d01b0c2425eb1f1347e8f50882ab', s: '5bd428537f05f9830e93792f90ea6a3e2d1ee84952dd96edbae9f658f831ab13' }; var tx = new Transaction(rawTx); ``` ### toCreationAddress If the tx's `to` is to the creation address Returns **[Boolean][26]** ### hash Computes a sha3-256 hash of the serialized tx #### Parameters - `includeSignature` **[Boolean][26]** whether or not to inculde the signature (optional, default `true`) Returns **[Buffer][22]** ### getChainId returns the public key of the sender Returns **[Buffer][22]** ### getSenderAddress returns the sender's address Returns **[Buffer][22]** ### getSenderPublicKey returns the public key of the sender Returns **[Buffer][22]** ### verifySignature Determines if the signature is valid Returns **[Boolean][26]** ### sign sign a transaction with a given a private key #### Parameters - `privateKey` **[Buffer][22]** ### getDataFee The amount of gas paid for the data in this tx Returns **BN** ### getBaseFee the minimum amount of gas the tx must have (DataFee + TxFee + Creation Fee) Returns **BN** ### getUpfrontCost the up front amount that an account must have for this transaction to be valid Returns **BN** ### validate validates the signature and checks to see if it has enough gas #### Parameters - `stringError` **[Boolean][26]** whether to return a string with a dscription of why the validation failed or return a Bloolean (optional, default `false`) Returns **([Boolean][26] \| [String][27])** ### serialize Returns the rlp encoding of the transaction Returns **[Buffer][22]** ### from #### Properties - `from` **[Buffer][22]** (read only) sender address of this transaction, mathematically derived from other parameters. [1]: #transaction [2]: #parameters [3]: #properties [4]: #examples [5]: #tocreationaddress [6]: #hash [7]: #parameters-1 [8]: #getchainid [9]: #getsenderaddress [10]: #getsenderpublickey [11]: #verifysignature [12]: #sign [13]: #parameters-2 [14]: #getdatafee [15]: #getbasefee [16]: #getupfrontcost [17]: #validate [18]: #parameters-3 [19]: #serialize [20]: #from [21]: #properties-1 [22]: https://nodejs.org/api/buffer.html [23]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array [24]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object [25]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number [26]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean [27]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String