@russ-b/nestjs-common-tools/dist/logger/logger.js

NestJS utility tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Logger = void 0;
const logger_builder_1 = require("./logger-builder");
class Logger {
    /**
     * Creates a fluent logger builder
     * @param appName - Application name (default: 'NestApp')
     * @param level - Log level (default: 'debug')
     * @returns LoggerBuilder instance
     * @example
     * ```ts
     * const logger = Logger.builder('MyApp', 'info')
     *   .addTransport('json')
     *   .addTransport('loki', { lokiUrl: 'http://...' })
     *   .build();
     * ```
     */
    static builder(appName, level) {
        return new logger_builder_1.LoggerBuilder(appName, level);
    }
    static normalizeFormats(formats) {
        if (!formats) {
            return ['nest'];
        }
        return Array.isArray(formats) ? formats : [formats];
    }
    static create(appName, level, formats, options) {
        const builder = Logger.builder(appName, level);
        const types = this.normalizeFormats(formats);
        types.forEach((type) => this.addTransportToBuilder(builder, type, options));
        return builder.build();
    }
    static addTransportToBuilder(builder, type, options) {
        switch (type) {
            case 'loki':
                if (!options?.loki) {
                    throw new Error('Loki transport requires options.loki to be provided');
                }
                builder.addTransport(type, options.loki);
                break;
            case 'json':
                builder.addTransport(type, options?.json);
                break;
            case 'nest':
                builder.addTransport(type, options?.nest);
                break;
        }
    }
}
exports.Logger = Logger;
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