@interopio/gateway/dist/logging/core.cjs.map

[](https://www.npmjs.com/package/@interopio/gateway)

{
  "version": 3,
  "sources": ["../../src/logging/core.ts"],
  "sourcesContent": ["import * as API from '../../types/logging/core';\n\nenum LogLevel {\n    off = 0,\n    error = 200,\n    warn = 300,\n    info = 400,\n    debug = 500,\n    trace = 600,\n    all = Number.MAX_SAFE_INTEGER\n}\n\nconst loggers: {[key: string]: Logger} = Object.create(null);\nconst logLevels: Record<string, LogLevel> = {};\nexport const ROOT_LOGGER_NAME = 'gateway';\nlogLevels[ROOT_LOGGER_NAME] = LogLevel.trace;\nlet appender : (e: API.LogEvent) => void  = (e) => {\n    console[e.level](`${e.time.toISOString()} ${e.level.toUpperCase()} [${e.name}] - ${e.message}`, ...e.data);\n};\n\ntype LogLevelKey = Exclude<keyof typeof LogLevel, 'off' | 'all'>;\n\nexport interface Logger extends API.Logger {\n    (level: LogLevelKey, message?: string, ...args: unknown[])\n}\n\nexport function logEvent(event: API.LogEvent) {\n    const { name, level } = event;\n    checkNameAndConfigureLevel(name);\n    if (isLevelEnabledFor(level, name)) {\n        appender(event);\n    }\n}\n\nfunction log(this: Logger, name: string, level: LogLevelKey, message: string, ...data: unknown[]) {\n    if (this.enabledFor(level)) {\n        const time = new Date();\n        const event: API.LogEvent = {time, level, name, message, data};\n        appender(event);\n    }\n}\n\nfunction isLevelEnabledFor(level: LogLevelKey, name: string) {\n    const logLevelValue = LogLevel[level];\n    const configuredLevel = logLevels[name];\n    return configuredLevel >= logLevelValue;\n}\n\nfunction newLogger(name: string): Logger {\n    checkNameAndConfigureLevel(name);\n    const logger: Logger = function(level: LogLevelKey, message: string, ...args:unknown[]) {\n        log.call(logger, name, level, message, ...args);\n    } as Logger;\n    function methods(key: string): key is LogLevelKey {\n        return isNaN(Number(key));\n    }\n    for (const method of Object.keys(LogLevel).filter(methods)) {\n        logger[method] = function(message: string, ...args: unknown[]) {\n            log.call(logger, name, method, message, ...args);\n        };\n    }\n    logger.enabledFor = function(level: LogLevelKey) {\n        return isLevelEnabledFor(level, name);\n    }\n    logger.child = function (suffix: string) {\n        return getLogger(`${name}.${suffix}`);\n    }\n    return logger;\n}\n\nfunction checkNameAndConfigureLevel(name: string) {\n    if (!name.startsWith(ROOT_LOGGER_NAME)) throw new Error(`Logger name must start with ${ROOT_LOGGER_NAME}`);\n    if (!logLevels[name]) {\n        const orderedEntries = Object.entries(logLevels).sort(([n1,], [n2,])=> n2.localeCompare(n1));\n        const [, level] = orderedEntries.find(([prefix,]) => name.startsWith(prefix))!;\n        logLevels[name] = level;\n    }\n}\n\nexport function getLogger(name: string): API.Logger {\n    let logger: Logger | undefined = loggers[name];\n    if (logger === undefined) {\n        logger = newLogger(name);\n        loggers[name] = logger;\n    }\n    return logger;\n}\n\nexport function configure(config: API.LogConfig) {\n    function updateLevels(prefix: string, level: API.LogConfigLevel) {\n        for (const name of Object.keys(logLevels).filter(k => k.startsWith(prefix))) {\n            logLevels[name] = LogLevel[level];\n        }\n        if (logLevels[prefix] === undefined) {\n            logLevels[prefix] = LogLevel[level];\n        }\n    }\n\n    const logLevel = config.level;\n\n    if (typeof logLevel === 'string') {\n        logLevels[ROOT_LOGGER_NAME] = LogLevel[logLevel];\n        updateLevels(ROOT_LOGGER_NAME, logLevel);\n    }\n    else if (typeof logLevel === 'object') {\n        const orderedEntries = Object.entries(logLevel).sort(([n1], [n2]) => n1.localeCompare(n2));\n        for (const [prefix, level] of orderedEntries) {\n            updateLevels(prefix, level);\n        }\n    }\n\n    appender = config.appender ?? appender;\n}\n"],
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  "names": ["core_exports", "__export", "ROOT_LOGGER_NAME", "configure", "getLogger", "logEvent", "__toCommonJS", "LogLevel", "loggers", "logLevels", "appender", "event", "name", "level", "checkNameAndConfigureLevel", "isLevelEnabledFor", "log", "message", "data", "logLevelValue", "newLogger", "logger", "args", "methods", "key", "method", "suffix", "orderedEntries", "n1", "n2", "prefix", "config", "updateLevels", "k", "logLevel"]
}