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Top 10 Examples of "ethereumjs-tx in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'ethereumjs-tx' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

public static fromRaw (hex: string, chainId: any): ITransaction {
    if (chainId === 62 || chainId === 61) {
      // Because ethereumjs-tx doesn't support MORDEN and ETC
      const custom = Common.forCustomChain(1, {
        chainId
      }, 'byzantium');
      return new EthereumTx(new EthTx(hex, { common: custom }));
    }
    return new EthereumTx(new EthTx(hex, { chain: chainId }));
  }
  public internalTx: EthTx;
const txSigner = async tx => {
      tx = new Transaction(tx, {
        common: commonGenerator(store.state.network)
      });
      const networkId = tx.getChainId();
      tx.raw[6] = networkId;
      tx.raw[7] = Buffer.from([]);
      tx.raw[8] = Buffer.from([]);
      const tokenInfo = byContractAddress('0x' + tx.to.toString('hex'));
      if (tokenInfo) await this.ledger.provideERC20TokenInformation(tokenInfo);
      const result = await this.ledger.signTransaction(
        accountPath,
        tx.serialize().toString('hex')
      );

      // EIP155 support. check/recalc signature v value.
      let v = result.v;
      const rv = parseInt(v, 16);
function signTransaction(rawTx, privateKey) {

    // check if privateKey->address matches rawTx.from
    var publicKey = (0, _publicKeyByPrivateKey2['default'])(privateKey);
    var address = (0, _publicKey.toAddress)(publicKey);
    if (address != rawTx.from) throw new Error('EthCrypto.signTransaction(): rawTx.from does not match the address of the privateKey');

    var privateKeyBuffer = new Buffer(privateKey.replace(/^.{2}/g, ''), 'hex');

    var tx = new _ethereumjsTx.Transaction(rawTx);
    tx.sign(privateKeyBuffer);
    var serializedTx = tx.serialize().toString('hex');
    return serializedTx;
}
export default function signTransaction(rawTx, privateKey) {

    // check if privateKey->address matches rawTx.from
    var publicKey = publicKeyByPrivateKey(privateKey);
    var address = addressByPublicKey(publicKey);
    if (address != rawTx.from) throw new Error('EthCrypto.signTransaction(): rawTx.from does not match the address of the privateKey');

    var privateKeyBuffer = new Buffer(privateKey.replace(/^.{2}/g, ''), 'hex');

    var tx = new Transaction(rawTx);
    tx.sign(privateKeyBuffer);
    var serializedTx = tx.serialize().toString('hex');
    return serializedTx;
}
signTx(txData: EthTxData): string {
      const tx = new EthereumTx(txData);
      // tx.gasLimit = txData.gasLimit;
      // tx.gasPrice = txData.gasPrice;
      // tx.nonce = txData.nonce;
      // tx.value = txData.value;
      // tx.data = txData.data;
      // tx.chainId = txData.chainId;
      tx.sign(this.wallet.getPrivateKey());
      return `0x${tx.serialize().toString('hex')}`;
    }
}
result => {
          if (!result.success) {
            return reject(Error(result.error));
          }

          // TODO: Explain what's going on here? Add tests? Adapted from:
          // https://github.com/kvhnuke/etherwallet/blob/v3.10.2.6/app/scripts/uiFuncs.js#L24
          const txToSerialize: TxData = {
            ...strTx,
            v: addHexPrefix(new BN(result.v).toString(16)),
            r: addHexPrefix(result.r.toString()),
            s: addHexPrefix(result.s)
          };
          const eTx = new EthTx(txToSerialize);
          const serializedTx = eTx.serialize();
          resolve(serializedTx);
        }
      );
// check the returned signature_v and recalc signature_v if it needed
        // see also https://github.com/trezor/trezor-mcu/pull/399
        if (Number(res.payload.v) <= 1) {
          //  for larger chainId, only signature_v returned. simply recalc signature_v
          res.payload.v += 2 * chainId + 35;
        }

        // TODO: Explain what's going on here? Add tests? Adapted from:
        // https://github.com/kvhnuke/etherwallet/blob/v3.10.2.6/app/scripts/uiFuncs.js#L24
        const txToSerialize: TxData = {
          ...strTx,
          v: res.payload.v,
          r: res.payload.r,
          s: res.payload.s
        };
        const eTx = new EthTx(txToSerialize);
        const serializedTx = eTx.serialize();
        resolve(serializedTx);
      });
    });
// (rv !== cv) : for v is truncated byte case
          // (rv & cv): make cv to truncated byte
          // (rv & cv) !== rv: signature v bit needed
          cv += 1; // add signature v bit.
        }
        v = cv.toString(16);
      }

      const txToSerialize: TxData = {
        ...txFields,
        v: addHexPrefix(v),
        r: addHexPrefix(result.r),
        s: addHexPrefix(result.s)
      };

      return new EthTx(txToSerialize).serialize();
    } catch (err) {
      throw Error(err + '. Check to make sure contract data is on');
    }
  }
it('returns a signed tx object', async () => {
      await keyring.deserialize([ privateKey ])

      const txParams = {
        from: address,
        nonce: '0x00',
        gasPrice: '0x09184e72a000',
        gasLimit: '0x2710',
        to: address,
        value: '0x1000',
      }
      const tx = new EthereumTx(txParams)

      const signed = await keyring.signTransaction(address, tx)
      assert.ok(signed.raw, 'has a raw signature')
    })
  })
.then(signed => {
              console.log(signed);
              const _tx = new Transaction(signed);
              const signedChainId = calculateChainIdFromV(_tx.v);
              if (signedChainId !== networkId)
                throw new Error(
                  'Invalid networkId signature returned. Expected: ' +
                    networkId +
                    ', Got: ' +
                    signedChainId,
                  'InvalidNetworkId'
                );
              resolve(getSignTransactionObject(_tx));
            })
            .catch(reject);

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