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The ESLint config has been updated to v8. The breaking changes are: * The Prettier rule `quoteProps` has been changed from `consistent` to `as-needed`, meaning that if one key requires quoting, only that key is quoted rather than all keys. * The ESLint rule `no-shadow` has been made more strict. It now prevents globals from being shadowed as well. Most of these changes were applied with `yarn lint:fix`. Only the shadowing changes required manual fixing (shadowing variable names were either replaced with destructuring or renamed). The dependency `globalThis` was added to the list of dynamic dependencies in the build system, where it should have been already. This was causing `depcheck` to fail because the new lint rules required removing the one place where `globalThis` had been erroneously imported previously. A rule requiring a newline between multiline blocks and expressions has been disabled temporarily to make this PR smaller and to avoid introducing conflicts with other PRs.
Transaction Controller
Transaction Controller is an aggregate of sub-controllers and trackers exposed to the MetaMask controller.
- txStateManager responsible for the state of a transaction and storing the transaction
- pendingTxTracker watching blocks for transactions to be include and emitting confirmed events
- txGasUtil gas calculations and safety buffering
- nonceTracker calculating nonces
Flow diagram of processing a transaction
txMeta's & txParams
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 be a valid key and be hex prefixed except for the network number. Extra stuff must go on the txMeta!
Here is a txMeta too look at:
txMeta = {
"id": 2828415030114568, // unique id for this txMeta used for look ups
"time": 1524094064821, // time of creation
"status": "confirmed",
"metamaskNetworkId": "1524091532133", //the network id for the transaction
"loadingDefaults": false, // used to tell the ui when we are done calculating gas defaults
"txParams": { // the txParams object
"from": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
"to": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
"value": "0x0",
"gasPrice": "0x3b9aca00",
"gas": "0x7b0c",
"nonce": "0x0"
},
"history": [
{ // debug information
"id": 2828415030114568,
"time": 1524094064821,
"status": "unapproved",
"metamaskNetworkId": "1524091532133",
"loadingDefaults": true,
"txParams": {
"from": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
"to": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675",
"value": "0x0"
}
},
[{
"op": "add",
"path": "/txParams/gasPrice",
"value": "0x3b9aca00"
}]
], // I've removed most of history for this
"origin": "MetaMask", //debug
"nonceDetails": {
"params": {
"highestLocallyConfirmed": 0,
"highestSuggested": 0,
"nextNetworkNonce": 0
},
"local": {
"name": "local",
"nonce": 0,
"details": {
"startPoint": 0,
"highest": 0
}
},
"network": {
"name": "network",
"nonce": 0,
"details": {
"baseCount": 0
}
}
},
"rawTx": "0xf86980843b9aca00827b0c948acce2391c0d510a6c5e5d8f819a678f79b7e67580808602c5b5de66eea05c01a320b96ac730cb210ca56d2cb71fa360e1fc2c21fa5cf333687d18eb323fa02ed05987a6e5fd0f2459fcff80710b76b83b296454ad9a37594a0ccb4643ea90", // used for rebroadcast
"hash": "0xa45ba834b97c15e6ff4ed09badd04ecd5ce884b455eb60192cdc73bcc583972a",
"submittedTime": 1524094077902 // time of the attempt to submit the raw tx to the network, used in the ui to show the retry button
}