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mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-12-12 12:47:14 +01:00
metamask-extension/app/scripts/controllers/transactions
Thomas Huang 02a4da9ad2
Fix 12145 - Ledger errors being set as Error: [object, object] (#12176)
* Fixes #12145

When transactions fail, preserve error message when presented with an error object. Fallback to stringified error for other cases.

* Perserve error stack when err.stack is present, else set stack to message.

* Use optional chaining
2021-09-22 10:41:23 -07:00
..
lib Rejecting EIP-1559 transactions on unsupported networks (#11722) 2021-08-02 08:38:01 -07:00
index.js Replace hardcoded sent ether label on confirm screen (#11802) 2021-09-15 16:54:51 -05:00
index.test.js Replace hardcoded sent ether label on confirm screen (#11802) 2021-09-15 16:54:51 -05:00
pending-tx-tracker.js cap resubmit transaction retries to within 50 blocks of first submission (#12003) 2021-09-02 16:06:31 -05:00
pending-tx-tracker.test.js colocate tests in flat structure (#10655) 2021-03-16 16:00:08 -05:00
README.md Fix words (#9038) 2020-07-20 14:32:49 -02:30
tx-gas-utils.js remove EIP-1559 fields from txParams before calling estimateGas (#11368) 2021-06-28 10:33:19 -05:00
tx-gas-utils.test.js Support EIP-2718 transaction types, EIP-2930 and EIP-1559 support (#11288) 2021-06-16 15:40:17 -05:00
tx-state-manager.js Fix 12145 - Ledger errors being set as Error: [object, object] (#12176) 2021-09-22 10:41:23 -07:00
tx-state-manager.test.js Replace hardcoded sent ether label on confirm screen (#11802) 2021-09-15 16:54:51 -05:00

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

transaction-flow

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
}