mirror of
https://github.com/kremalicious/metamask-extension.git
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165666b315
* Remove `estimatedGas` property from `txMeta` The `estimatedGas` property was a cache of the gas value estimated for a transaction when the default gas limit was set. This property wasn't used anywhere. It may have been useful for debugging purposes, but the same gas estimate is already stored on the `history` property so it should be present in state logs regardless. * Remove `gasLimitSpecified` txMeta property The `gasLimitSpecified` property of `txMeta` wasn't used for anything. It might have been useful for debugging purposes, but whether or not the gas limit was specified can also be determined from looking at the transaction history, so it's not a huge loss. * Remove `gasPriceSpecified` txMeta property The `gasPriceSpecified` property of `txMeta` wasn't used for anything. It might have been useful for debugging purposes, but whether or not the gas price was specified can also be determined from looking at the transaction history, so it's not a huge loss. * Remove `simpleSend` txMeta property The `simpleSend` property of `txMeta` was used to ensure a buffer was not added to the gas limit during gas estimation for simple send transactions. It was made redundant by #8484, which accomplishes this without the use of this property.
90 lines
2.9 KiB
Markdown
90 lines
2.9 KiB
Markdown
# Transaction Controller
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Transaction Controller is an aggregate of sub-controllers and trackers
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exposed to the MetaMask controller.
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- txStateManager
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responsible for the state of a transaction and
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storing the transaction
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- pendingTxTracker
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watching blocks for transactions to be include
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and emitting confirmed events
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- txGasUtil
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gas calculations and safety buffering
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- nonceTracker
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calculating nonces
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## Flow diagram of processing a transaction
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## txMeta's & txParams
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A txMeta is the "meta" object it has all the random bits of info we need about a transaction on it. txParams are sacred every thing on txParams gets signed so it must
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be a valid key and be hex prefixed except for the network number. Extra stuff must go on the txMeta!
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Here is a txMeta too look at:
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```js
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txMeta = {
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"id": 2828415030114568, // unique id for this txMeta used for look ups
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"time": 1524094064821, // time of creation
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"status": "confirmed",
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"metamaskNetworkId": "1524091532133", //the network id for the transaction
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"loadingDefaults": false, // used to tell the ui when we are done calculatyig gass defaults
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"txParams": { // the txParams object
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"from": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
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"to": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
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"value": "0x0",
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"gasPrice": "0x3b9aca00",
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"gas": "0x7b0c",
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"nonce": "0x0"
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},
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"history": [{ //debug
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"id": 2828415030114568,
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"time": 1524094064821,
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"status": "unapproved",
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"metamaskNetworkId": "1524091532133",
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"loadingDefaults": true,
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"txParams": {
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"from": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
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"to": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
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"value": "0x0"
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}
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},
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[
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{
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"op": "add",
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"path": "/txParams/gasPrice",
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"value": "0x3b9aca00"
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},
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...], // I've removed most of history for this
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"origin": "MetaMask", //debug
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"nonceDetails": {
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"params": {
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"highestLocallyConfirmed": 0,
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"highestSuggested": 0,
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"nextNetworkNonce": 0
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},
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"local": {
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"name": "local",
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"nonce": 0,
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"details": {
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"startPoint": 0,
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"highest": 0
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}
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},
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"network": {
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"name": "network",
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"nonce": 0,
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"details": {
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"baseCount": 0
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}
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}
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},
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"rawTx": "0xf86980843b9aca00827b0c948acce2391c0d510a6c5e5d8f819a678f79b7e67580808602c5b5de66eea05c01a320b96ac730cb210ca56d2cb71fa360e1fc2c21fa5cf333687d18eb323fa02ed05987a6e5fd0f2459fcff80710b76b83b296454ad9a37594a0ccb4643ea90", // used for rebroadcast
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"hash": "0xa45ba834b97c15e6ff4ed09badd04ecd5ce884b455eb60192cdc73bcc583972a",
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"submittedTime": 1524094077902 // time of the attempt to submit the raw tx to the network, used in the ui to show the retry button
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}
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```
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