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@starcoin/stc-nonce-tracker

v0.3.0

Published

Transaction nonce calculation used in StarMask.

Downloads

8

Readme

nonce-tracker

How metamask calculates nonces

const NonceTracker = require('nonce-tracker')

const nonceTracker = new NonceTracker(config)

nonceLock = nonceTracker.getNonceLock('0xselectedEthereumAddress')

nonce = nonceLock.nextNonce

NonceTracker

index.js:13-159

Parameters

  • opts Object {Object}
    • opts.provider Object a ethereum provider
    • opts.getPendingTransactions Function a function that returns an array of txMeta whose status is submitted
    • opts.getConfirmedTransactions Function a function that returns an array of txMeta whose status is confirmed
    • opts.blockTracker

getGlobalLock

index.js:27-32

Returns Promise<Object> with the key releaseLock (the gloabl mutex)

getNonceLock

index.js:48-82

Parameters

  • address

Properties

  • highestLocallyConfirmed number A hex string of the highest nonce on a confirmed transaction.
  • nextNetworkNonce number The next nonce suggested by the eth_getTransactionCount method.
  • highestSuggested number The maximum between the other two, the number returned.

this will return an object with the nextNonce nonceDetails, and the releaseLock Note: releaseLock must be called after adding a signed tx to pending transactions (or discarding).

Parameters

  • address {string} the hex string for the address whose nonce we are calculating

Returns Promise<NonceDetails>

Running tests

yarn test