fixed syntax highlighting. (#103)

Author: jrmccannon

src/guide/backend/nodejs.md

@@ -18,16 +18,22 @@ Specifying the `baseUrl` would be optional, and will contain `https://v4.passwor
 
 To obtain your `ApiSecret`, you can find it in the admin console under `Applications > 'Your Application' > Getting Started`.
 
-```TSX
+```tsx
 const options: PasswordlessOptions = {
   baseUrl: 'https://v4.passwordless.dev'
 };
-this._passwordlessClient = new PasswordlessClient('demo:secret:f831e39c29e64b77aba547478a4b3ec6', options);
+this._passwordlessClient = new PasswordlessClient(
+  'demo:secret:f831e39c29e64b77aba547478a4b3ec6',
+  options
+);
 ```
 
-```TSX
+```tsx
 const options: PasswordlessOptions = {};
-this._passwordlessClient = new PasswordlessClient('demo:secret:f831e39c29e64b77aba547478a4b3ec6', options);
+this._passwordlessClient = new PasswordlessClient(
+  'demo:secret:f831e39c29e64b77aba547478a4b3ec6',
+  options
+);
 ```
 
 ### Registration
@@ -36,67 +42,68 @@ If you had for example a 'UserController.ts' with a 'signup' arrow function. You
 
 You'll first want to proceed to store the new user in your database and verifying it has succeeded, before registering the token.
 
-```TSX
+```tsx
 signup = async (request: express.Request, response: express.Response) => {
-        const signupRequest: SignupRequest = request.body;
-        const repository: UserRepository = new UserRepository();
-        let id: string = null;
-        try {
-            // First, create the user in your database. We will use the id to register the token.
-            // This way we know what user the credentials will belong to.
-            id = repository.create(signupRequest.username, signupRequest.firstName, signupRequest.lastName);
-        } catch {
-            // do error handling, creating user failed.
-        } finally {
-            repository.close();
-        }
-
-        if (!id) {
-            // Do not proceed to create a token, we failed to create a user.
-            response.send(400);
-        }
-
-        let registerOptions = new RegisterOptions();
-        registerOptions.userId = id;
-        registerOptions.username = signupRequest.username;
-
-        // We will use our deviceName as an alias. But using an alias is completely optional.
-        if (signupRequest.deviceName) {
-            registerOptions.aliases = new Array(1);
-            registerOptions.aliases[0] = signupRequest.deviceName;
-        }
-
-        registerOptions.discoverable = true;
-
-        // Now call Passwordless.dev to register a new token.
-        const token: RegisterTokenResponse = await this._passwordlessClient.createRegisterToken(registerOptions);
-
-        // Return the token to the client.
-        response.send(token);
-    }
+  const signupRequest: SignupRequest = request.body;
+  const repository: UserRepository = new UserRepository();
+  let id: string = null;
+  try {
+    // First, create the user in your database. We will use the id to register the token.
+    // This way we know what user the credentials will belong to.
+    id = repository.create(signupRequest.username, signupRequest.firstName, signupRequest.lastName);
+  } catch {
+    // do error handling, creating user failed.
+  } finally {
+    repository.close();
+  }
+
+  if (!id) {
+    // Do not proceed to create a token, we failed to create a user.
+    response.send(400);
+  }
+
+  let registerOptions = new RegisterOptions();
+  registerOptions.userId = id;
+  registerOptions.username = signupRequest.username;
+
+  // We will use our deviceName as an alias. But using an alias is completely optional.
+  if (signupRequest.deviceName) {
+    registerOptions.aliases = new Array(1);
+    registerOptions.aliases[0] = signupRequest.deviceName;
+  }
+
+  registerOptions.discoverable = true;
+
+  // Now call Passwordless.dev to register a new token.
+  const token: RegisterTokenResponse =
+    await this._passwordlessClient.createRegisterToken(registerOptions);
+
+  // Return the token to the client.
+  response.send(token);
+};
 ```
 
 ### Logging in
 
-```TSX
+```tsx
 signin = async (request: express.Request, response: express.Response) => {
-        try {
-            const token: string = request.query.token as string;
-
-            // First check if the token is valid, and if a matching user is found.
-            const verifiedUser: VerifiedUser = await this._passwordlessClient.verifyToken(token);
-
-            // If a user is found, and the token is valid, you can proceed to log the user in.
-            if (verifiedUser && verifiedUser.success === true) {
-                // If you want to build a JWT token for SPA that are rendered client-side, you can do this here.
-                response.send(JSON.stringify(verifiedUser));
-                return;
-            }
-        } catch (error) {
-            console.error(error.message);
-        }
-        response.send(401);
+  try {
+    const token: string = request.query.token as string;
+
+    // First check if the token is valid, and if a matching user is found.
+    const verifiedUser: VerifiedUser = await this._passwordlessClient.verifyToken(token);
+
+    // If a user is found, and the token is valid, you can proceed to log the user in.
+    if (verifiedUser && verifiedUser.success === true) {
+      // If you want to build a JWT token for SPA that are rendered client-side, you can do this here.
+      response.send(JSON.stringify(verifiedUser));
+      return;
     }
+  } catch (error) {
+    console.error(error.message);
+  }
+  response.send(401);
+};
 ```
 
 ## References