chore: upgrade to TypeScript 2.7

package.json

@@ -54,7 +54,7 @@
     "prettier": "^1.10.2",
     "source-map-support": "^0.5.3",
     "tmp": "0.0.33",
-    "typescript": "~2.6.2"
+    "typescript": "~2.7.0"
   },
   "files": [
     "LICENSE",

src/auth/authclient.ts

@@ -20,7 +20,7 @@ import {Credentials} from './credentials';
 
 export abstract class AuthClient {
   transporter = new DefaultTransporter();
-  credentials: Credentials;
+  credentials: Credentials = {};
 
   /**
    * Provides an alternative Axios request implementation with auth credentials

src/auth/googleauth.ts

@@ -60,7 +60,7 @@ interface CredentialResult {
 }
 
 export class GoogleAuth {
-  transporter: Transporter;
+  transporter?: Transporter;
 
   /**
    * Caches a value indicating whether the auth layer is running on Google
@@ -75,8 +75,8 @@ export class GoogleAuth {
     return this.checkIsGCE;
   }
 
-  private _getDefaultProjectIdPromise: Promise<string|null>;
-  private _cachedProjectId: string|null;
+  private _getDefaultProjectIdPromise?: Promise<string|null>;
+  private _cachedProjectId?: string|null;
 
   // To save the contents of the JSON credential file
   jsonContent: JWTInput|null = null;

src/auth/jwtclient.ts

@@ -38,10 +38,10 @@ export class JWT extends OAuth2Client {
   scopes?: string|string[];
   scope?: string;
   subject?: string;
-  gtoken: GoogleToken;
+  gtoken?: GoogleToken;
   additionalClaims?: {};
 
-  private access: JWTAccess;
+  private access?: JWTAccess;
 
   /**
    * JWT service account credentials.
@@ -157,8 +157,8 @@ export class JWT extends OAuth2Client {
     }
     this.credentials = result.tokens;
     this.credentials.refresh_token = 'jwt-placeholder';
-    this.key = this.gtoken.key;
-    this.email = this.gtoken.iss;
+    this.key = this.gtoken!.key;
+    this.email = this.gtoken!.iss;
     return result.tokens;
   }
 

src/auth/oauth2client.ts

@@ -246,7 +246,7 @@ export class OAuth2Client extends AuthClient {
   // TODO: refactor tests to make this private
   _clientSecret?: string;
 
-  apiKey: string;
+  apiKey?: string;
 
   projectId?: string;
 
@@ -284,7 +284,6 @@ export class OAuth2Client extends AuthClient {
     this.redirectUri = opts.redirectUri;
     this.authBaseUrl = opts.authBaseUrl;
     this.tokenUrl = opts.tokenUrl;
-    this.credentials = {};
     this.eagerRefreshThresholdMillis =
         opts.eagerRefreshThresholdMillis || 5 * 60 * 1000;
   }

test/test.jwt.ts

@@ -68,10 +68,10 @@ describe('JWT auth client', () => {
       jwt.authorize((err, creds) => {
         assert.equal(err, null);
         assert.notEqual(creds, null);
-        assert.equal('foo@serviceaccount.com', jwt.gtoken.iss);
-        assert.equal(PEM_PATH, jwt.gtoken.keyFile);
-        assert.equal(['http://bar', 'http://foo'].join(' '), jwt.gtoken.scope);
-        assert.equal('bar@subjectaccount.com', jwt.gtoken.sub);
+        assert.equal('foo@serviceaccount.com', jwt.gtoken!.iss);
+        assert.equal(PEM_PATH, jwt.gtoken!.keyFile);
+        assert.equal(['http://bar', 'http://foo'].join(' '), jwt.gtoken!.scope);
+        assert.equal('bar@subjectaccount.com', jwt.gtoken!.sub);
         assert.equal('initial-access-token', jwt.credentials.access_token);
         assert.equal(creds!.access_token, jwt.credentials.access_token);
         assert.equal(creds!.refresh_token, jwt.credentials.refresh_token);
@@ -93,7 +93,7 @@ describe('JWT auth client', () => {
 
       createGTokenMock({access_token: 'initial-access-token'});
       jwt.authorize((err, creds) => {
-        assert.equal('http://foo', jwt.gtoken.scope);
+        assert.equal('http://foo', jwt.gtoken!.scope);
         done();
       });
     });