@open-condo/miniapp-utils/dist/helpers/apollo.mjs

A set of helper functions / components / hooks used to build new condo apps fast

// src/helpers/apollo.ts
import { parse as parseCookieString, serialize as serializeCookie } from "cookie";
import { setCookie as setCookie2, getCookies } from "cookies-next";

// src/helpers/sender.ts
import { getCookie, setCookie } from "cookies-next";

// src/helpers/uuid.ts
import { randomBytes } from "crypto";
function generateUUIDv4() {
  let randomValues;
  if (typeof crypto !== "undefined" && typeof crypto.randomUUID === "function") {
    return crypto.randomUUID();
  } else if (typeof window !== "undefined" && window.crypto && window.crypto.getRandomValues) {
    randomValues = new Uint8Array(16);
    window.crypto.getRandomValues(randomValues);
  } else {
    randomValues = randomBytes(16);
  }
  randomValues[6] = randomValues[6] & 15 | 64;
  randomValues[8] = randomValues[8] & 63 | 128;
  return [...randomValues].map((value, index) => {
    const hex = value.toString(16).padStart(2, "0");
    if (index === 4 || index === 6 || index === 8 || index === 10) {
      return `-${hex}`;
    }
    return hex;
  }).join("");
}

// src/helpers/sender.ts
var FINGERPRINT_ID_COOKIE_NAME = "fingerprint";
var FINGERPRINT_ID_LENGTH = 12;
function makeId(length) {
  const croppedLength = Math.min(length, 32);
  return generateUUIDv4().replaceAll("-", "").substring(0, croppedLength);
}
function generateFingerprint() {
  return makeId(FINGERPRINT_ID_LENGTH);
}
function getClientSideFingerprint() {
  let fingerprint = getCookie(FINGERPRINT_ID_COOKIE_NAME);
  if (!fingerprint) {
    fingerprint = generateFingerprint();
    setCookie(FINGERPRINT_ID_COOKIE_NAME, fingerprint);
  }
  return fingerprint;
}

// src/helpers/apollo.ts
var SSR_DEFAULT_FINGERPRINT = "webAppSSR";
var COOKIE_HEADER_NAME = "cookie";
var REMOTE_APP_HEADER_NAME = "x-remote-app";
var REMOTE_VERSION_HEADER_NAME = "x-remote-version";
var REMOTE_CLIENT_HEADER_NANE = "x-remote-client";
var REMOTE_ENV_HEADER_NAME = "x-remote-env";
var TARGET_HEADER_NAME = "x-target";
var START_REQUEST_ID_HEADER_NAME = "x-start-request-id";
var PARENT_REQUEST_ID_HEADER_NAME = "x-parent-request-id";
function generateRequestId() {
  return `BR${generateUUIDv4().replaceAll("-", "")}`;
}
function getTracingMiddleware(options) {
  return function(operation, forward) {
    operation.setContext((previousContext) => {
      const { headers: previousHeaders } = previousContext;
      const reqId = generateRequestId();
      const headers = {
        ...previousHeaders,
        [REMOTE_APP_HEADER_NAME]: options.serviceUrl,
        [REMOTE_VERSION_HEADER_NAME]: options.codeVersion,
        [PARENT_REQUEST_ID_HEADER_NAME]: reqId,
        [START_REQUEST_ID_HEADER_NAME]: reqId
      };
      if (options.target) {
        headers[TARGET_HEADER_NAME] = options.target;
      }
      headers[REMOTE_ENV_HEADER_NAME] = typeof document === "undefined" ? "SSR" : "CSR";
      if (typeof document !== "undefined" && document.cookie) {
        headers[REMOTE_CLIENT_HEADER_NANE] = getClientSideFingerprint();
      } else if (headers[COOKIE_HEADER_NAME]) {
        const ssrCookies = parseCookieString(headers[COOKIE_HEADER_NAME]);
        headers[REMOTE_CLIENT_HEADER_NANE] = ssrCookies[FINGERPRINT_ID_COOKIE_NAME] || SSR_DEFAULT_FINGERPRINT;
      }
      return {
        ...previousContext,
        headers
      };
    });
    return forward(operation);
  };
}
function prepareSSRContext(req, res) {
  if (!req) {
    return {
      headers: {}
    };
  }
  const requestCookies = getCookies({ req, res });
  if (!requestCookies[FINGERPRINT_ID_COOKIE_NAME]) {
    const fingerprint = generateFingerprint();
    requestCookies[FINGERPRINT_ID_COOKIE_NAME] = fingerprint;
    setCookie2(FINGERPRINT_ID_COOKIE_NAME, fingerprint, { req, res });
  }
  const cookieHeader = Object.entries(requestCookies).map(([name, value]) => value ? serializeCookie(name, value) : null).filter(Boolean).join(";");
  return {
    headers: {
      cookie: cookieHeader
    }
  };
}
export {
  getTracingMiddleware,
  prepareSSRContext
};
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