feat: updates import resolution

Updates import resolution to use ES6-style imports and Typescript import/export helpers.

Signed-off-by: Rifa Achrinza <[email protected]>

functions/src/config.example.ts

@@ -1,8 +1,8 @@
-import FunctionConfig from "./opentrace/types/FunctionConfig";
-import Authenticator from "./opentrace/utils/Authenticator";
-import PinGenerator from "./opentrace/utils/PinGenerator";
+import {FunctionConfig} from "./opentrace/types/FunctionConfig";
+import {Authenticator} from "./opentrace/utils/Authenticator";
+import {PinGenerator} from "./opentrace/utils/PinGenerator";
 
-const config: FunctionConfig = {
+export const config: FunctionConfig = {
   projectId: "",
   regions: [],
   utcOffset: 0,
@@ -26,5 +26,3 @@ const config: FunctionConfig = {
     bucketForArchive: "archive-bucket",
   },
 };
-
-export default config;

functions/src/firebaseFunctions.ts

@@ -1,4 +1,4 @@
-import * as functions from "firebase-functions";
+import functions from "firebase-functions";
 
 import config from "./config";
 

functions/src/index.ts

@@ -1,4 +1,4 @@
-import * as admin from "firebase-admin";
+import admin from "firebase-admin";
 admin.initializeApp();
 
 import * as firebaseFunctions from "./firebaseFunctions";

functions/src/opentrace/getHandshakePin.ts

@@ -1,11 +1,10 @@
-import * as functions from "firebase-functions";
-
+import functions from "firebase-functions";
 import config from "../config";
 
 /**
  * Get the handshake pin for a user.
  */
-const getHandshakePin = async (uid: string) => {
+export const getHandshakePin = async (uid: string) => {
   console.log('getHandshakePin:', 'uid', uid);
 
   try {
@@ -20,5 +19,3 @@ const getHandshakePin = async (uid: string) => {
 };
 
 export const getUserHandshakePin = config.upload.pinGenerator.generatePin;
-
-export default getHandshakePin;

functions/src/opentrace/getTempIDs.ts

@@ -1,8 +1,8 @@
-import * as moment from "moment";
+import moment from "moment";
 
 import config from "../config";
-import CustomEncrypter from "./utils/CustomEncrypter";
-import getEncryptionKey from "./utils/getEncryptionKey";
+import {CustomEncrypter} from "./utils/CustomEncrypter";
+import {getEncryptionKey} from "./utils/getEncryptionKey";
 
 const UID_SIZE = 21;
 const TIME_SIZE = 4;
@@ -11,7 +11,7 @@ const TEMPID_SIZE = UID_SIZE + TIME_SIZE * 2;
 const IV_SIZE = 16;
 const AUTHTAG_SIZE = 16;
 
-const getTempIDs = async (uid: string) => {
+export const getTempIDs = async (uid: string) => {
   console.log('getTempIDs:', 'uid', uid);
 
   const encryptionKey = await getEncryptionKey();
@@ -76,5 +76,3 @@ export function decryptTempID(tempID: string, encryptionKey: Buffer): { uid: str
     expiryTime: expiryTime
   };
 }
-
-export default getTempIDs;

functions/src/opentrace/getUploadToken.ts

@@ -1,15 +1,15 @@
-import * as functions from "firebase-functions";
-import * as admin from "firebase-admin";
+import functions from "firebase-functions";
+import admin from "firebase-admin";
 
 import config from "../config";
-import getEncryptionKey from "./utils/getEncryptionKey";
-import CustomEncrypter from "./utils/CustomEncrypter";
-import formatTimestamp from "./utils/formatTimestamp";
+import {getEncryptionKey} from "./utils/getEncryptionKey";
+import {CustomEncrypter} from "./utils/CustomEncrypter";
+import {formatTimestamp} from "./utils/formatTimestamp";
 
 /**
  * Get upload token by passing in a secret string as `data`
  */
-const getUploadToken = async (uid: string, data: any, context: functions.https.CallableContext) => {
+export const getUploadToken = async (uid: string, data: any, context: functions.https.CallableContext) => {
   console.log('getUploadToken:', 'uid', uid, 'data', data, 'ip', context.rawRequest.ip);
 
   let valid = false;
@@ -109,5 +109,3 @@ export function validateToken(token: string, encryptionKey: Buffer, validateToke
 
   return {uid: uid, uploadCode: upload};
 }
-
-export default getUploadToken;

functions/src/opentrace/processUploadedData.ts

@@ -1,8 +1,6 @@
-import * as functions from "firebase-functions";
+import functions from "firebase-functions";
 import {ObjectMetadata} from "firebase-functions/lib/providers/storage";
 
-const processUploadedData = async (object: ObjectMetadata) => {
+export const processUploadedData = async (object: ObjectMetadata) => {
   throw new functions.https.HttpsError('unimplemented', 'Not implemented yet');
 };
-
-export default processUploadedData;

functions/src/opentrace/types/FunctionConfig.ts

@@ -4,7 +4,7 @@ import PinGenerator from "../utils/PinGenerator";
 // SUPPORTED_REGIONS from function-configuration.d.ts
 declare type SUPPORTED_REGIONS = "us-central1" | "us-east1" | "us-east4" | "europe-west1" | "europe-west2" | "asia-east2" | "asia-northeast1";
 
-interface FunctionConfig {
+export interface FunctionConfig {
   projectId: string // Firebase Project ID
   regions: SUPPORTED_REGIONS[]
   utcOffset: number | string
@@ -28,5 +28,3 @@ interface FunctionConfig {
     bucketForArchive: string
   }
 }
-
-export default FunctionConfig;

functions/src/opentrace/types/HeartBeatEvent.ts

@@ -1,8 +1,6 @@
-interface HeartBeatEvent {
+export interface HeartBeatEvent {
   timestamp: number,
   msg?: string,
   // enhanced fields:
   timestampString?: string,
 }
-
-export default HeartBeatEvent;

functions/src/opentrace/types/StreetPassRecord.ts

@@ -8,7 +8,7 @@
  *   Transmission Power txPower
  *   Organization org
  */
-interface StreetPassRecord {
+export interface StreetPassRecord {
     timestamp: number,
     msg?: string,
     modelC: string,
@@ -24,5 +24,3 @@ interface StreetPassRecord {
     contactIdValidFrom?: number,
     contactIdValidTo?: number,
 }
-
-export default StreetPassRecord;

functions/src/opentrace/utils/Authenticator.ts

@@ -1,7 +1,7 @@
-import * as functions from "firebase-functions";
+import functions from "firebase-functions";
 import {CallableContext} from "firebase-functions/lib/providers/https";
 
-export default class Authenticator {
+export class Authenticator {
   async authenticate(data: any, context: CallableContext): Promise<string> {
     if (!context.auth) {
       throw new functions.https.HttpsError('unauthenticated', 'The function must be called while authenticated.');

functions/src/opentrace/utils/CustomEncrypter.ts

@@ -1,7 +1,7 @@
-import * as crypto from "crypto";
+import crypto from "crypto";
 import config from "../../config";
 
-class CustomEncrypter {
+export class CustomEncrypter {
 
   algorithm: string;
   key: Buffer;
@@ -71,5 +71,3 @@ class CustomEncrypter {
     return this.decrypt(decodedCipherTextB64, decodedIvB64, decodedAuthTagB64);
   }
 }
-
-export default CustomEncrypter;

functions/src/opentrace/utils/PinGenerator.ts

@@ -2,7 +2,7 @@
  * This class uses a plain substring to generate a pin from user uid.
  * It should be subclassed with a secure implementation.
  */
-export default class PinGenerator {
+export class PinGenerator {
   async generatePin(uid: string): Promise<string> {
     return uid.substring(0, 6).toUpperCase();
   }

functions/src/opentrace/utils/formatTimestamp.ts

@@ -2,14 +2,12 @@
  * Convert timestamp (expressed in seconds since the Epoch) to "DD-MMM-YYYY HH:mm:ss Z" format
  * @param timestamp
  */
-import * as moment from "moment";
+import moment from "moment";
 
 import config from "../../config";
 
 const TIMESTAMP_FORMAT = "DD-MMM-YYYY HH:mm:ss Z";
 
-function formatTimestamp(timestamp: number) {
+export function formatTimestamp(timestamp: number) {
   return moment.unix(timestamp).utcOffset(config.utcOffset).format(TIMESTAMP_FORMAT);
 }
-
-export default formatTimestamp;

functions/src/opentrace/utils/getEncryptionKey.ts

@@ -5,7 +5,7 @@ import config from "../../config";
 const SECRET_KEY = `projects/${config.projectId}/secrets/${config.encryption.keyPath}`;
 const SECRET_KEY_DEFAULT_VERSION = `${SECRET_KEY}/versions/${config.encryption.defaultVersion}`;
 
-const getEncryptionKey = async (): Promise<Buffer> => getEncryptionSecret(SECRET_KEY_DEFAULT_VERSION);
+export const getEncryptionKey = async (): Promise<Buffer> => getEncryptionSecret(SECRET_KEY_DEFAULT_VERSION);
 
 export const getAllEncryptionKeys = async (): Promise<Buffer[]> => {
   const secretManagerClient = new SecretManagerServiceClient();
@@ -25,7 +25,7 @@ export const getAllEncryptionKeys = async (): Promise<Buffer[]> => {
 
 const isDefaultKey = (_: string) => SECRET_KEY_DEFAULT_VERSION.substring(SECRET_KEY_DEFAULT_VERSION.length - 2) === _.substring(_.length - 2);
 
-async function getEncryptionSecret(keyPathIncludingVersion: string): Promise<Buffer> {
+export async function getEncryptionSecret(keyPathIncludingVersion: string): Promise<Buffer> {
   const secretManagerClient = new SecretManagerServiceClient();
 
   console.log("getEncryptionSecret:", `Getting encryption key: ${keyPathIncludingVersion}`);
@@ -36,5 +36,3 @@ async function getEncryptionSecret(keyPathIncludingVersion: string): Promise<Buf
   // @ts-ignore
   return Buffer.from(secret.payload.data.toString(), 'base64');
 }
-
-export default getEncryptionKey;

functions/test/index.test.ts

@@ -1,4 +1,4 @@
-import * as admin from "firebase-admin";
+import admin from "firebase-admin";
 import config from "../src/config";
 
 if (!process.env.GOOGLE_APPLICATION_CREDENTIALS) {

functions/test/opentrace/config.test.ts

@@ -1,7 +1,7 @@
-import * as admin from "firebase-admin";
-import * as functions from "firebase-functions";
-import * as chai from "chai";
-import * as crypto from "crypto";
+import admin from "firebase-admin";
+import functions from "firebase-functions";
+import chai from "chai";
+import crypto from "crypto";
 
 import config from "../../src/config";
 import {FunctionsTestWrapper} from "../index.test";

functions/tsconfig.json

@@ -7,10 +7,10 @@
     "skipLibCheck": true,
     "sourceMap": true,
     "strict": true,
-    "target": "es2017"
+    "target": "es2017",
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "importHelpers": true
   },
   "compileOnSave": true,
-  "include": [
-    "src"
-  ]
 }