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Merge pull request #20 from binance/rc-v0.3.7
Release v0.3.7
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| import { WebsocketStream } from '../../src/index'; | ||
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| const callbacks = { | ||
| open: () => console.debug('Connected to WebSocket server'), | ||
| close: () => console.debug('Disconnected from WebSocket server'), | ||
| message: (data: string) => console.info(data) | ||
| }; | ||
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| const websocketStreamClient = new WebsocketStream({ callbacks }); | ||
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| websocketStreamClient.subscribe(['bnbusdt@depth', 'btcusdt@depth']); | ||
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| setTimeout(() => websocketStreamClient.disconnect(), 6000); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| export enum LogLevel { | ||
| NONE = '', | ||
| DEBUG = 'debug', | ||
| INFO = 'info', | ||
| WARN = 'warn', | ||
| ERROR = 'error', | ||
| } | ||
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| export class Logger { | ||
| private static instance: Logger; | ||
| private minLogLevel: LogLevel = LogLevel.INFO; | ||
| private readonly levelsOrder: LogLevel[] = [ | ||
| LogLevel.NONE, | ||
| LogLevel.DEBUG, | ||
| LogLevel.INFO, | ||
| LogLevel.WARN, | ||
| LogLevel.ERROR, | ||
| ]; | ||
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| constructor() { } | ||
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| public static getInstance(): Logger { | ||
| if (!Logger.instance) { | ||
| Logger.instance = new Logger(); | ||
| } | ||
| return Logger.instance; | ||
| } | ||
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| public setMinLogLevel(level: LogLevel): void { | ||
| if (!this.isValidLogLevel(level)) { | ||
| throw new Error(`Invalid log level: ${level}`); | ||
| } | ||
| this.minLogLevel = level; | ||
| } | ||
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| private isValidLogLevel(level: LogLevel): boolean { | ||
| return this.levelsOrder.includes(level); | ||
| } | ||
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| private log(level: LogLevel, ...message: unknown[]): void { | ||
| if (level === LogLevel.NONE || !this.allowLevelLog(level)) { | ||
| return; | ||
| } | ||
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| const timestamp = new Date().toISOString(); | ||
| console[level](`[${timestamp}] [${level.toUpperCase()}]`, ...message); | ||
| } | ||
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| private allowLevelLog(level: LogLevel): boolean { | ||
| if (!this.isValidLogLevel(level)) { | ||
| throw new Error(`Invalid log level: ${level}`); | ||
| } | ||
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| const currentLevelIndex = this.levelsOrder.indexOf(level); | ||
| const minLevelIndex = this.levelsOrder.indexOf(this.minLogLevel); | ||
| return currentLevelIndex >= minLevelIndex; | ||
| } | ||
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| public debug(...message: unknown[]): void { | ||
| this.log(LogLevel.DEBUG, ...message); | ||
| } | ||
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| public info(...message: unknown[]): void { | ||
| this.log(LogLevel.INFO, ...message); | ||
| } | ||
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| public warn(...message: unknown[]): void { | ||
| this.log(LogLevel.WARN, ...message); | ||
| } | ||
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| public error(...message: unknown[]): void { | ||
| this.log(LogLevel.ERROR, ...message); | ||
| } | ||
| } |
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