api-stds/dist/config/config.js

Standardized API response and error handling toolkit with async handler, requestId, logging, and configurable formats.

import * as fs from "fs";
import * as path from "path";
const defaultConfig = {
    response: {
        includeMeta: true,
        metaFields: ["timestamp", "requestId"],
        timestampFormat: "iso",
        defaultApiVersion: "v1",
    },
    errors: {
        defaultCode: "INTERNAL_ERROR",
        defaultMessage: "Something went wrong",
        registryPath: "",
    },
    asyncHandler: {
        logUnhandledErrors: true,
        mapUnknownToInternal: true,
    },
    logging: {
        enabled: false,
        level: "info",
        format: "json",
    }
};
let cachedConfig = null;
export function getConfig() {
    if (cachedConfig)
        return cachedConfig;
    const filePath = path.resolve(process.cwd(), "api-stds.config.json");
    if (fs.existsSync(filePath)) {
        const userConfig = JSON.parse(fs.readFileSync(filePath, "utf-8"));
        cachedConfig = {
            ...defaultConfig,
            ...userConfig,
            response: { ...defaultConfig.response, ...(userConfig.response || {}) },
            errors: { ...defaultConfig.errors, ...(userConfig.errors || {}) },
            asyncHandler: {
                ...defaultConfig.asyncHandler,
                ...(userConfig.asyncHandler || {}),
            },
            logging: { ...defaultConfig.logging, ...(userConfig.logging || {}) },
        };
    }
    else {
        cachedConfig = defaultConfig;
    }
    return cachedConfig;
}