@visulima/health-check/dist/packem_shared/dnsCheck-CKpwi39o.cjs

A library built to provide support for defining service health for node services. It allows you to register async health checks for your dependencies and the service itself, provides a health endpoint that exposes their status, and health metrics.

'use strict';

const CacheableLookup = require('cacheable-lookup');

const _interopDefaultCompat = e => e && typeof e === 'object' && 'default' in e ? e.default : e;

const CacheableLookup__default = /*#__PURE__*/_interopDefaultCompat(CacheableLookup);

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
const DISPLAY_NAME = "DNS check for";
const dnsCheck = /* @__PURE__ */ __name((host, expectedAddresses, options) => async () => {
  const { family = "all", hints, ...config } = options ?? {};
  const cacheable = new CacheableLookup__default(config);
  try {
    const meta = await cacheable.lookupAsync(host.replace(/^https?:\/\//, ""), {
      hints,
      ...family === "all" ? { all: true } : { family }
    });
    if (Array.isArray(expectedAddresses) && !expectedAddresses.includes(meta.address)) {
      return {
        displayName: `${DISPLAY_NAME} ${host}`,
        health: {
          healthy: false,
          // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
          message: `${DISPLAY_NAME} ${host} returned address ${meta.address} instead of ${expectedAddresses.join(", ")}.`,
          timestamp: (/* @__PURE__ */ new Date()).toISOString()
        },
        meta: {
          // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
          addresses: meta,
          host
        }
      };
    }
    return {
      displayName: `${DISPLAY_NAME} ${host}`,
      health: {
        healthy: true,
        message: `${DISPLAY_NAME} ${host} were resolved.`,
        timestamp: (/* @__PURE__ */ new Date()).toISOString()
      },
      meta: {
        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
        addresses: meta,
        host
      }
    };
  } catch (error) {
    return {
      displayName: `${DISPLAY_NAME} ${host}`,
      health: {
        healthy: false,
        message: error.message,
        timestamp: (/* @__PURE__ */ new Date()).toISOString()
      },
      meta: {
        host
      }
    };
  }
}, "dnsCheck");

module.exports = dnsCheck;