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Posts from December, 2021

Tuesday, December 14, 2021Print Subscribe

Code On Time release 8.9.24.0 creates apps with the hypermedia-enabled RESTful API Engine. The hypermedia controls elevate the engine to the Level 3 of Richardson Maturity Model.

The new engine significantly increases the value of your applications. It also offers new opportunities to leverage your Code On Time expertise in modern application development. The best part is that you accomplish both with just a few keystrokes!

Learn to navigate and use the RESTful Hypermedia of your application.

Top-level resource of a RESTful API is infused with hypermedia.

Why Are We Building It?

The long-time fans follow the saga of our effort to rebuild the new community site. We have designed an ambitious content management system (CMS) called the Content Hub. This CMS can be integrated into any application created with Code On Time to infuse them with the built-in community forum, help desk, blog, and documentation platform. We are getting ready to roll it out soon! The new REST API is the foundation of the Content Hub backend.

The REST API engine also answers the persistent stream of requests from our customers to allow taking advantage of the data services of the applications they create. The new API is built on top of the HTTP architecture, making use of the resource-based URLs, HTTP methods, and content caching. The hypermedia makes it uniquely easy to learn and use. The REST API engine turns Code on Time into the middleware provider, while the app developers are becoming the expert backend gurus.

Code On Time applications can serve as the backend for custom mobile and web apps, cloud process orchestration services, and much more. Start selling your data and business logic with state-of-the-art technology!

Our previous roadmaps have pointed to GraphQL as the core backend technology for Code On Time applications. The query demonstrated in the discussion of over-fetching is written with the GraphQL syntax. The follow-up releases will introduce the full GraphQL runtime for queries and mutations with the automatic generation of data and input types. The runtime will automatically resolve queries into the RESTful API Engine requests.

Assistant UI, the new text-based user interface for Code On Time applications is also in the works. It will allow the end users to text, email, and talk to your applications with the help of hypermedia!

RESTful Workshop

Start your journey into the RESTful World with a collection of curated tutorials.

Learn how to build a RESTful backend application without coding. Create embedded and standalone single page applications for the backend. Master the OAuth 2.0 Authorization Code Flow with PKCE. Use OpenID Connect to request a JSON Web Token (JWT) from the backend to find the picture and email with the explicit user approval.

Start the RESTful Workshop now!

Labels: OAuth2, RESTful, RESTful Workshop, SPA

Monday, October 4, 2021Print Subscribe

2-Factor Authentication, "Actions" Lookup Style, Tap to Copy, Login Responses

Code On Time release 8.9.23.0 is introducing the enterprise-grade security feature that helps secure the user accounts. 2-Factor Authentication is opt-in by default. It can also be applied to all users accounts in the existing and new apps automatically. Another highlight of the release is the option to inject the actions directly into the flow of the data fields in the forms. Multiple enhancements and bug fixes are also included in this release.

2-Factor Authentication

The new feature will require the verification code to be entered after the valid combination of username and password was provided by the user during login. The verification code can be delivered by an authenticator app installed on the personal mobile device. Other options include an email, text message, or voice call. Developers may even choose to hide the password field in the login form if the 2-Factor Authentication setup mode is automatic.

The new multi-factor authentication enhances the protection of the user accounts. This feature was sponsored by Peter Marchal of Wonderland Office, Belgium.

“Actions” Lookup Style

The new lookup style “Actions” makes it easy to inject the actions in the flow of data fields of a form. Action buttons placed right next to the relevant data fields gain better context and improve the user experience. The visibility of the individual action is controlled by “When…” properties associated with the action. The visibility of the entire cluster of action buttons is controlled through the Visible When property of the data field that has its lookup style set to Actions and the Name set to match the Id of the corresponding action group.

Tap to Copy

The new tag text-action-copy will cause the “Copy” button displayed next to the data field value. Tapping or clicking on the button will cause the field value to be copied into the clipboard. See this feature in action in the screenshot above. The text is copied to the clipboard and also displayed in the notification at the bottom of the screen when the button is clicked.

Custom Login Responses

If the user login has failed, then the generic message “Your user name and password are not valid” is displayed by the apps. If the login was successful then the user is silently signed in. Sometimes a custom message or system response is desired.

Consider the following examples:

The user account is locked and it is preferable to let the user know what actions must be performed to recover the account.
Developers may need to inform the user about the number of remaining login attempts before the account is locked.
Multi-factor authentication must force the user to enter the verification code if the login was successful.

Learn about Custom Login Responses in Code On Time apps.

Releases Notes

The the following features, enhancements and bug fixes are included in the release:

(Classic UI) Removed the link that allowed downloading the import template.
(Touch UI) Fixed the incorrect reference to the API function in the import processor. This was causing the error with the long running imports when the status was updated.
(App Gen) Replaced the legacy community reference with my.codeontime.com.
(Virtual Keyboard) The keyboard is minimized when the window loses focus and re-activates when the focus is restored.
(Framework) Moved methods and classes from ApplicationServices.cs(vb) to ApplicationServices.Auth.cs(vb).
(Class Library Apps) Files touch-edit.js and touch-input.js are copied to the ~/app/js/daf folder of the apps with the class library to enable debugging in Unlimited Edition apps.
(Framework) Method $app.prettyText formats international names as "pretty" strings.
(Universal Input) List box/ Check Box List / Radio Button List with 1 item has a compact presentation.
(Input) Qr code does not show the tooltip if the field is tagged as input-qrcode-tooltip-hidden.
(TouchUI) Check Box List item state transition is twice faster.
(Touch UI) Survey actions support the position=before|after option. If the option is not specified then actions are inserted just before the Cancel button. Actions with "before" position are placed before the "Submit" button. Actions with the position "after" are placed after the Cancel button.
(Framework) Method dataView.data('survey') returns the context data or a "survey" dataview. Used in the Property Grid and 2FA forms.
(Touch UI) The first row in the form category without the header will have a slightly large top padding.
(Touch UI) Freezing of the column in the grid with aggregates will not cause the exception.
(Touch UI) Keys F2 and Arrow Down will focus the first row in the focused DataView field in the form.
(Framework) Transaction processor correctly parses the temporary UIDs and resolves negative primary keys into "old" values encoded as UID if the corresponding new value is also the UID.
(Framework) Method Commit resolves the temporary primary key presented as negative integer or as uid in the format 000000000000-0000-0000-0000-00000001 with the key value recorded in the last segment.
(ODP) Client-side temp GUID primary keys are generated in the following format: 00000000-0000-0000-0000-00000000001. Only the last 12 digits are used to encode the temporary primary key, while the leading characters are set to 0. The server-side framework resolves such GUIDs with the physical database values.
(Model Builder) Data View fields created in the model builder will have the filter fields correctly matched to the corresponding field names. Previously the original column name was used instead. If the output field name based on the column was not spelled in the same way then there will be incorrect filtering at runtime.
(App Gen) The codedom compiler now supports << (left shift) and >> (right shift) operators in C# and VB.
(Touch UI) Tag merge-with-prevous will cause the row to render without a separator line at the top to allow creating a contiguous group of fields in the form layout.
(Surveys) Setting the "text" of the question to "false" will cause the label to be blank.
(Touch UI) Setting the Label or Header Text of a field to $blank will result in a blank label of the field.
(Touch UI) Removed legacy references to the class ui-group-theme-a and ui-panel-page-container-a.
(Framework) If the style of field items is set to Actions then the field is marked as "virtual".
(Universal Input) Tag input-qrcode-size-192x192 will also trigger a custom input creation. The only input implemented now is "qrcode".
(Surveys) Survey definitions support causesCalculate on the actions and htmlEncode on the questions.
(Framework) Server-side method PopulateStaticItems will correctly assign Controller and View of the request to the internal ViewPage instance to ensure correct population of Many-to-many field with the static values (Check Box List, Drop Down List basket, List Box basket) when the Context Fields property of the many-to-many field property is set to X=Y. (X is the name of the filter and Y is the name of the field that will provide the value for X).
(Virtual Keyboard) Event beforefocus.keypboard.app is triggered on the data input prior to the keyboard gaining the focus. The handler can assign the callback method to the e.context.change property through the "e" argument of the event handler to be notified about changes to the text in the keyboard input.
(Virtual Keyboard) The virtual keyboard API is loaded when [data-input] elements are detected on the page to reduce the initial JS payload of the page.
(Universal Input) New virtual keyboard "pin" is now included with the framework. Tag a field as kbd-pin to have the keyboard displayed on touch devices.
(Universal Input) Virtual keyboard will not shift focus to the next input on tab or enter key if the user interface is in transition to another page at the moment of closure.
Thank you Roberto Ivon for contributing the "es" localization files.

Labels: Release Notes

Monday, October 4, 2021Print Subscribe

Custom User Login Responses

The introduction of the 2-Factor Authentication in the application framework has required changes to the login process. The framework challenges the users to enter a verification code to confirm their identity. Method CreateUserLoginResponse(username, success) in the ApplicationServices partial class creates the JSON object with the instructions for the client-side code when the verification is needed.

Developers can take advantage of the new method to provide custom responses informing the user about the remaining login attempts, locked account, and other special cases. Otherwise the framework displays a generic message “Your user name and password are not valid.”

The sample code below will let the user name if the account is locked or display a notification at the bottom of the screen. The code executes only if there is no login response created by the base implementation to avoid conflicts with the multi-factor authentication.

Invalid username or password will yield a notification message when the JSON object with the notify property is returned.

A more prominent response is provided if the responses includes the alert property.

If the event property is returned in the response, then the framework will raise the client-side event on the document object with the response passed as the args property of the event. 2FA implementation uses this method to pass extended information to the client library.

Labels: Security, Tips and Tricks