*...offers a pure ABAP approach for developing UI5 apps, entirely without JavaScript, OData and RAP — similar to the past, when only a few lines of ABAP sufficed to display input forms and tables using Selection Screens & ALVs. Designed with a minimal system footprint, it works in both on-premise and cloud environments.*
#### Key Features
* **100% ABAP:** Developing purely in ABAP (no JavaScript, DDL, EML or Customizing)
* **User-Friendly:** Implement just a single interface for a standalone UI5 application
* **Minimal System Footprint:** Based on a plain HTTP handler (no BSP, OData, CDS or RAP)
* **Cloud and On-Premise Ready:** Works with both language versions (ABAP for Cloud, Standard ABAP)
* **Broad System Compatibility:** Runs on all ABAP releases (from NW 7.02 to ABAP Cloud)
* **Easy Installation:** abapGit project, no additional app deployment required
#### Compatibility
* BTP ABAP Environment (ABAP for Cloud)
* S/4 Public Cloud ABAP Environment (ABAP for Cloud)
* S/4 Private Cloud or On-Premise (ABAP for Cloud, Standard ABAP)
* R/3 NetWeaver AS ABAP 7.50 or higher (Standard ABAP)
* R/3 NetWeaver AS ABAP 7.02 to 7.42 - use the [downport repository](https://github.com/abap2UI5/abap2UI5-downport)
#### References
* Find abap2UI5 on ABAP Open Source Projects [(dotabap.org)](https://dotabap.org/)
* Featured on SAP Developer News [(youtube - 26.01.2023)](https://www.youtube.com/watch?v=6BDK55xYttM)
* Highlighted in the Boring Enterprise Nerdletter [(newsletter - 08.03.2023)](https://boringenterprisenerds.substack.com/p/34-abap2ui5-sap-cva-burnout-c2c-shortwave)
* Part of the SAP Developer Code Challenge [(SCN - 17.05.2023)](https://groups.community.sap.com/t5/application-development/sap-developer-code-challenge-open-source-abap-week-2/m-p/260727#M1372)
* Showcased at SAP TechEd 2023 [(youtube - 02.11.2023)](https://www.youtube.com/watch?v=kLbF0ooStZs&t=3052s)
* Join the Advent of Code 2023 with abap2UI5 [(SCN - 27.11.2023)](https://blogs.sap.com/2023/11/27/preparing-for-advent-of-code-2023/)
* Featured on SAP Developer News [(youtube - 15.12.2023)](https://www.youtube.com/watch?v=CfH9L03WUCg&t=350s)
* Highlighted in the Boring Enterprise Nerdcast [(youtube - 29.01.2024)](https://youtu.be/svDZKFBvqR8?t=1050)
* Running abap2UI5 Backend in Browser [(LinkedIn - 02.04.2024)](https://www.linkedin.com/pulse/running-abap2ui5-backend-browser-lars-hvam-petersen-l8zff/?trackingId=4mhMb1v%2FSoa8SmDSiuCEpg%3D%3D)
* Check out Cust&Code Videos with abap2UI5 [(youtube - 20.05.2024)](https://www.youtube.com/watch?v=SD1vIt_ty0k)
* Featured on SAP Developer News [(youtube - 14.06.2024)](https://youtu.be/7n16u-Rx8IY?t=7)
#### Credits
* These [**contributors**](https://github.com/abap2UI5/abap2UI5/graphs/contributors) continuously drive the evolution of this project forward
* Code versioning & distribution are managed via [**abapGit**](https://abapgit.org/) [(authors)](https://abapgit.org/sponsor.html)
* Static code analysis and quality assurance are performed via [**abaplint**](https://abaplint.org/) and [**open-abap**](https://github.com/open-abap) [(larshp)](https://github.com/larshp)
* JSON parsing for frontend-backend communication is implemented with [**ajson**](https://github.com/sbcgua/ajson) [(sbcgua)](https://github.com/sbcgua)
* Serialization of variables created at runtime is implemented with [**S-RTTI**](https://github.com/sandraros/S-RTTI) [(sandrarossi)](https://github.com/sandraros)
* Compatibility with lower releases is ensured through automatic syntax downport with [**abaplint**](https://abaplint.org/) [(larshp)](https://github.com/larshp)
* ABAP for Cloud & Standard ABAP compatibility in a single codeline is achieved with [**Steampuncification**](https://github.com/heliconialabs/steampunkification)
* Live demos running in the browser are based on [**abap2UI5-web**](https://github.com/abap2UI5/abap2UI5-web) and [**web-abap2ui5-samples**](https://github.com/abap2UI5/web-abap2ui5-samples) [(larshp)](https://github.com/larshp)
* Included Frontend Frameworks: **[Animate.css](https://animate.style/) [bwip-js](https://github.com/metafloor/bwip-js) [Chart.js](https://www.chartjs.org/) [Driver.js](https://driverjs.com/) [Font Awesome](https://fontawesome.com/) [ImageMapster](http://www.outsharked.com/imagemapster/)**
* The code is primarily developed on an [**ABAP Cloud Developer Trial 2022**](https://hub.docker.com/r/sapse/abap-cloud-developer-trial) [(hosted by Nuve Platform)](https://www.nuveplatform.com/)
_Thanks to everyone who submits PRs or enriches my knowledge in issues, comments, via Slack, or through other channels. This project greatly benefits from your support!_
### Know-How
_Take some time to explore the [samples repository.](https://github.com/abap2UI5/abap2UI5-samples) This is the quickest way to become an abap2UI5 expert._ 🤓
#### I. Development & Technical Background
1. Introduction: Developing UI5 Apps Purely in ABAP [(SCN - 22.02.2023)](https://blogs.sap.com/2023/02/22/abap2ui5-development-of-ui5-apps-in-pure-abap-1-3/)
2. Displaying Selection Screens & Tables [(SCN - 23.02.2023)](https://blogs.sap.com/2023/02/22/abap2ui5-output-of-lists-and-tables-toolbar-and-editable-2-3/)
3. Popups, F4-Help, Messages & Controller Logic [(SCN - 30.03.2023)](https://blogs.sap.com/2023/03/30/abap2ui5-3-4-flow-logic-pop-ups-f4-help/)
4. Advanced Functionality & Demonstrations [(SCN - 02.04.2023)](https://blogs.sap.com/2023/04/02/abap2ui5-4-5-additional-features-demos/)
5. Creating UIs with XML Views, HTML, CSS & JavaScript [(SCN - 12.04.2023)](https://blogs.sap.com/2023/04/12/abap2ui5-5-6-extensions-with-xml-views-html-js-custom-controls/)
6. Installation, Configuration & Troubleshooting [(SCN - 14.04.2023)](https://blogs.sap.com/2023/04/14/abap2ui5-6-7-installation-configuration-debugging/)
7. Technical Background: Under the Hood of abap2UI5 [(SCN - 26.04.2023)](https://blogs.sap.com/2023/04/26/abap2ui5-7-7-technical-background-under-the-hood-of-abap2ui5/)
8. Repository Organization: Working with abapGit, abaplint & open-abap [(SCN - 21.08.2023)](https://blogs.sap.com/2023/08/21/abap2ui5-a1-repository-setup-with-abapgit-abaplint-open-abap/)
9. Update I: Community Feedback & New Features - Sep. 2023 [(SCN - 11.09.2023)](https://blogs.sap.com/2023/09/11/abap2ui5-a2-community-feedback-new-features/)
10. Extensions I: Exploring External Libraries & Native Device Capabilities [(SCN - 04.12.2023)](https://blogs.sap.com/2023/12/04/abap2ui5-a3-extensions-i-exploring-external-libraries-native-device-capabilities/)
11. Extensions II: Guideline for Developing New Features in JavaScript [(SCN - 11.12.2023)](https://blogs.sap.com/2023/12/11/abap2ui5-a4-extensions-ii-guideline-for-developing-new-features-in-javascript/)
12. Update II: Community Feedback, New Features & Outlook 2024 [(SCN - 08.01.2024)](https://blogs.sap.com/2024/01/08/abap2ui5-12-update-ii-community-feedback-new-features-outlook-january-2024/)
#### II. On-Stack & Side-By-Side Extensibility
1. Overview & Use Cases
2. Running abap2UI5 on older R/3 Releases [(LinkedIn - 14.07.2024)](https://www.linkedin.com/pulse/running-abap2ui5-older-r3-releases-downport-compatibility-abaplint-mjkle/)
3. Calling Apps Remotely via RFC [(LinkedIn - 25.06.2024)](https://www.linkedin.com/pulse/calling-abap2ui5-apps-remotely-via-rfc-abap2ui5-btoue/)
#### III. SAP Fiori Launchpad Integration
1. Installation & Configration [(LinkedIn - 03.06.2024)](https://www.linkedin.com/pulse/copy-abap2ui5-host-your-apps-sap-fiori-launchpad-abap2ui5-ocn2e/?trackingId=Eot1XiIJHbM2a2ebDSF3dg%3D%3D&lipi=urn%3Ali%3Apage%3Ad_flagship3_pulse_read%3B4FqT5lkFQBioKDKsj%2F3ZTw%3D%3D)
2. Setup Title, Parameters & Navigation [(LinkedIn - 06.06.2024)](https://www.linkedin.com/pulse/abap2ui5-host-your-apps-sap-fiori-launchpad-23-features-abap2ui5-upche/?trackingId=WdScbzEUGgKY%2FS2Ibiy5fA%3D%3D&lipi=urn%3Ali%3Apage%3Ad_flagship3_pulse_read%3B4FqT5lkFQBioKDKsj%2F3ZTw%3D%3D)
3. Integration of KPIs [(LinkedIn - 07.06.2024)](https://www.linkedin.com/pulse/abap2ui5-host-your-apps-sap-fiori-launchpad-33-kpis-abap2ui5-uuxxe/?trackingId=RedZMaZUkHn%2Bv6oSTwtVQw%3D%3D&lipi=urn%3Ali%3Apage%3Ad_flagship3_pulse_read%3B4FqT5lkFQBioKDKsj%2F3ZTw%3D%3D)
#### IV. SAP BTP Integration
1. Installation & Configuration [(LinkedIn - 09.06.2024)](https://www.linkedin.com/pulse/abap2ui5-integration-sap-business-technology-platform-13-installation-lf1re/?trackingId=jFrPiQOaJTZn6WCiK5gS3g%3D%3D)
2. Setup SAP Build Workzone Websites [(LinkedIn - 16.06.2024)](https://www.linkedin.com/pulse/abap2ui5-integration-sap-business-technology-platform-23-setup-ujdqe/?trackingId=bIEcH1OFtZU8kU2PCwcp%2BA%3D%3D)
3. Setup SAP Mobile Start [(LinkedIn - 17.06.2024)](https://www.linkedin.com/pulse/abap2ui5-integration-sap-business-technology-platform-33-setup-uzure/?trackingId=He2W8FnZZ5UxpbGKHOeLEg%3D%3D)
#### V. More
* Import & Export Excel files in pure ABAP with abap2xslt [(twitter/xslt)](https://twitter.com/abap2UI5/status/1703787345588162907)
* Pimp up your apps with custom controls and external libraries [(ext-cc)](https://github.com/abap2UI5/abap2UI5-documentation/blob/main/docs/custom_controls.md)
* Rename the Namespace of abap2UI5 [(abap2UI5-mirror)](https://github.com/abap2UI5/abap2UI5-mirror)
* Discover other projects using abap2UI5 [(abap2UI5/links)](https://github.com/abap2UI5/abap2UI5-documentation/blob/main/links.md)
### Installation
Install with [abapGit](https://abapgit.org)  and set up a new HTTP service with the following handler:
##### Standard ABAP 🏠
```abap
METHOD if_http_extension~handle_request.
server->response->set_cdata( z2ui5_cl_http_handler=>main( server->request->get_cdata( ) ) ).
server->response->set_header_field( name = `cache-control` value = `no-cache` ).
server->response->set_status( code = 200 reason = `success` ).
ENDMETHOD.
```
##### ABAP for Cloud :cloud:
show code...
```abap
METHOD if_http_service_extension~handle_request.
response->set_text( z2ui5_cl_http_handler=>main( request->get_text( ) ) ).
response->set_header_field( i_name = `cache-control` i_value = `no-cache` ).
response->set_status( 200 ).
ENDMETHOD.
```
#### Usage
Implement the abap2UI5 interface as shown in the following example:
```abap
CLASS z2ui5_cl_app_hello_world DEFINITION PUBLIC.
PUBLIC SECTION.
INTERFACES z2ui5_if_app.
DATA name TYPE string.
ENDCLASS.
CLASS z2ui5_cl_app_hello_world IMPLEMENTATION.
METHOD z2ui5_if_app~main.
CASE client->get( )-event.
WHEN 'POST'.
client->message_toast_display( |Your name is { name }.| ).
ENDCASE.
client->view_display( z2ui5_cl_xml_view=>factory(
)->page( 'abap2UI5 - Hello World App'
)->simple_form( )->content( ns = `form`
)->title( 'Input here and send it to the server...'
)->label( 'What is your name?'
)->input( client->_bind_edit( name )
)->button( text = 'post' press = client->_event( 'POST' )
)->stringify( ) ).
ENDMETHOD.
ENDCLASS.
```
Or check out this bigger example with tables and events:
show code...
```abap
CLASS z2ui5_cl_demo_app DEFINITION PUBLIC.
PUBLIC SECTION.
INTERFACES Z2UI5_if_app.
TYPES:
BEGIN OF ty_row,
title TYPE string,
value TYPE string,
descr TYPE string,
icon TYPE string,
info TYPE string,
selected TYPE abap_bool,
checkbox TYPE abap_bool,
END OF ty_row.
DATA t_tab TYPE STANDARD TABLE OF ty_row WITH EMPTY KEY.
DATA check_initialized TYPE abap_bool.
ENDCLASS.
CLASS z2ui5_cl_demo_app IMPLEMENTATION.
METHOD Z2UI5_if_app~main.
IF check_initialized = abap_false.
check_initialized = abap_true.
t_tab = VALUE #(
( title = 'row_01' info = 'completed' descr = 'this is a description' icon = 'sap-icon://account' )
( title = 'row_02' info = 'incompleted' descr = 'this is a description' icon = 'sap-icon://account' )
( title = 'row_03' info = 'working' descr = 'this is a description' icon = 'sap-icon://account' )
( title = 'row_04' info = 'working' descr = 'this is a description' icon = 'sap-icon://account' )
( title = 'row_05' info = 'completed' descr = 'this is a description' icon = 'sap-icon://account' )
( title = 'row_06' info = 'completed' descr = 'this is a description' icon = 'sap-icon://account' )
).
DATA(view) = z2ui5_cl_xml_view=>factory( ).
DATA(page) = view->shell(
)->page(
title = 'abap2UI5 - List'
navbuttonpress = client->_event( 'BACK' )
shownavbutton = abap_true
)->header_content(
)->link(
text = 'Source_Code' target = '_blank'
href = z2ui5_cl_demo_utility=>factory( client )->app_get_url_source_code( )
)->get_parent( ).
page->list(
headertext = 'List Ouput'
items = client->_bind_edit( t_tab )
mode = `SingleSelectMaster`
selectionchange = client->_event( 'SELCHANGE' )
)->standard_list_item(
title = '{TITLE}'
description = '{DESCR}'
icon = '{ICON}'
info = '{INFO}'
press = client->_event( 'TEST' )
selected = `{SELECTED}`
).
client->view_display( view->stringify( ) ).
ENDIF.
CASE client->get( )-event.
WHEN 'SELCHANGE'.
DATA(lt_sel) = t_tab.
DELETE lt_sel WHERE selected = abap_false.
client->message_box_display( `go to details for item ` && lt_sel[ 1 ]-title ).
WHEN 'BACK'.
client->nav_app_leave( client->get_app( client->get( )-s_draft-id_prev_app_stack ) ).
ENDCASE.
ENDMETHOD.
ENDCLASS.
```
#### FAQ
* Still have open questions? Check out the [documentation](https://github.com/abap2UI5/abap2UI5-documentation/) or find an answer in the [FAQ](https://github.com/abap2UI5/abap2UI5-documentation/blob/main/docs/faq.md)
* Want to help out? Check out the contribution [guidelines](https://github.com/abap2UI5/abap2UI5-documentation/blob/main/CONTRIBUTING.md)
* As always - your comments, questions, wishes and bug reports are welcome, please create an [issue](https://github.com/abap2UI5/abap2UI5/issues)