mirror of
https://github.com/kremalicious/metamask-extension.git
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114 lines
3.2 KiB
TypeScript
114 lines
3.2 KiB
TypeScript
import { addHexPrefix } from 'ethereumjs-util';
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const ONE_HUNDRED_THOUSAND = 100000;
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const MIN_GAS_LIMIT_DEC = '21000';
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export const MIN_GAS_LIMIT_HEX = parseInt(MIN_GAS_LIMIT_DEC, 10).toString(16);
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export const GAS_LIMITS = {
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// maximum gasLimit of a simple send
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SIMPLE: addHexPrefix(MIN_GAS_LIMIT_HEX),
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// a base estimate for token transfers.
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BASE_TOKEN_ESTIMATE: addHexPrefix(ONE_HUNDRED_THOUSAND.toString(16)),
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};
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/**
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* @typedef {object} GasEstimateTypes
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* @property {'fee-market'} FEE_MARKET - A gas estimate for a fee market transaction generated by our gas estimation API.
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* @property {'legacy'} LEGACY - A gas estimate for a legacy Transaction generated by our gas estimation API.
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* @property {'eth_gasPrice'} ETH_GAS_PRICE - A gas estimate provided by the Ethereum node via eth_gasPrice.
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* @property {'none'} NONE - No gas estimate available.
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*/
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/**
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* These are already declared in @metamask/controllers but importing them from
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* that module and re-exporting causes the UI bundle size to expand beyond 4MB
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*
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* (TODO: This comment was added before @metamask/controllers was split up —
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* revisit now that @metamask/gas-fee-controller is available)
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*
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* @type {GasEstimateTypes}
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*/
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export enum GasEstimateTypes {
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feeMarket = 'fee-market',
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legacy = 'legacy',
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ethGasPrice = 'eth_gasPrice',
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none = 'none',
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}
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/**
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* These represent gas recommendation levels presented in the UI
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*/
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export enum GasRecommendations {
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low = 'low',
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medium = 'medium',
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high = 'high',
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}
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/**
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* These represent types of gas estimation
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*/
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export enum PriorityLevels {
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tenPercentIncreased = 'tenPercentIncreased',
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low = 'low',
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medium = 'medium',
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high = 'high',
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custom = 'custom',
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dAppSuggested = 'dappSuggested',
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}
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/**
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* Represents the user customizing their gas preference
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*/
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export const CUSTOM_GAS_ESTIMATE = 'custom';
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/**
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* These represent the different edit modes presented in the UI
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*/
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export enum EditGasModes {
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speedUp = 'speed-up',
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cancel = 'cancel',
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modifyInPlace = 'modify-in-place',
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swaps = 'swaps',
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}
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/**
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* Represents levels for `networkCongestion` (calculated along with gas fee
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* estimates; represents a number between 0 and 1) that we use to render the
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* network status slider on the send transaction screen and inform users when
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* gas fees are high
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*/
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export enum NetworkCongestionThresholds {
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notBusy = 0,
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stable = 0.33,
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busy = 0.66,
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}
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export interface TxGasFees {
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/** Maxmimum number of units of gas to use for this transaction. */
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gasLimit: string;
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/** Price per gas for legacy txs */
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gasPrice: string;
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/**
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* Maximum amount per gas to pay for the transaction, including the priority
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* fee.
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*/
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maxFeePerGas: string;
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/** Maximum amount per gas to give to validator as incentive. */
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maxPriorityFeePerGas: string;
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/** Which estimate level was used */
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estimateUsed: string;
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/** Which estimate level that the API suggested. */
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estimateSuggested: string;
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/** The default estimate for gas. */
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defaultGasEstimates: string;
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/** same as gasLimit? */
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gas: string;
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/** Original estimate for gas. */
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originalGasEstimate: string;
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/** The gas limit supplied by user. */
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userEditedGasLimit: string;
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/** Estimate level user selected. */
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userFeeLevel: string;
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}
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