Welcome to the final week of this month’s SAP Developer Challenge. Be sure to check out the previous weeks' tasks if you haven’t worked on them yet.    Task description  This week we focus on shifting the API call to be initiated by the user from the browser. To achieve this, we need to attach a press event to the submit button of the dialog that will pop up when we click the Add Questions button from our previous week’s UI. Below is the process flow of the actions:  Task outline  Our goal is to launch a dialog through the Add Questions button click, call the API endpoint through the submit button of the dialog and then display the added questions in the questions section we created last week. Additionally, we would like to display the message response from our API endpoint to the user through a message box.    Steps  Launch a dialog with an input field for the user to provide the questions count when the Add Questions button is clicked. The dialog should have a submit and a cancel button.   When the submit button is clicked, make an API call to the assignQuestionsToTest API endpoint we created in week 2. The dialog should close when the cancel button is clicked.  Display a message box of the response returned from the API upon call completion. In addition, display the questions added to the test in the Questions section we created last week.   Resources  Dialogs and Fragments  OData Operations  OData Context Binding    Task Checklist  Post a screenshot of your questions count dialog in the reply section. Capture the questions count provided in the input field and the initial state of the Questions section as shown below:  Post a screenshot of the page state after clicking the submit button. If the test had no questions initially, we should see the exact number of questions added according to the input value we provided above. If the test had 1 question initially and we provided 2 as the questions count, we should see 3 questions in total displayed. Feel free to provide additional screenshots based on the different responses that can be returned from our API endpoint.   Bonus Task  Through meticulous database modeling, strategic API exposure, and the intuitive power of SAP Fiori Elements, we have created a small full-stack project that can be explored further to implement additional functionality.  Think of a function you would like to add to this project and add a brief description in your response on how you would go about achieving this. If possible, implement it and attach a screenshot of the feature.    ... View more

Welcome to the second week of this month’s SAP Developer Challenge. If you have not yet read the initial blog post, please do so and complete the first week’s task as we will build upon it.  Task Description  With a robust back-end architecture and initial data records in place, we proceed to automatically update our models with data. In week one, we modeled our database and manually added records to our entities using csv files.   We now want to implement an API endpoint that will allow a user to provide the number of questions they wish to associate with a test, from the browser. We will then process that by selecting the given number of questions (yet to be associated with a test) from our currently existing questions model and associate/link them to a test automatically.   Note: A question cannot be used in more than one test.  Below is a process flow diagram of the API endpoint to be implemented:  Task Outline  Our goal is to implement an API layer that will later connect our back-end to the front-end. After implementation, we need to expose the API to allow front-end components seamlessly access it.   What is an action?  An action can be defined as an operation to be performed on one or several entities within a service, which allows for definition of custom behavior or functionality based on the business rules. There are two main types of actions in OData: Bound and Unbound.   Difference between bound and unbound actions  Bound actions are associated with a specific entity type and can only be invoked on instances of that entity type. Unbound actions on the other hand are not tied to any specific entity type and can be invoked independently on any particular entity instance. Unbound actions are mostly used to perform operations that do not require a specific entity context.  We are therefore interested in a bound action as we would like to perform operations related to the Tests entity instance.     Steps  In the srv directory, create a file named cat-service.js. Copy the following lines of code and paste them in the file:        const cds = require('@sap/cds') module.exports = class DevChallengeService extends cds.ApplicationService { init() { return super.init() } // TODO: Implement the bound action: assignQuestionsToTest }          2. Implement a bound action named assignQuestionsToTest in the cat-service.js file we just created. This action should contain the logic explained and illustrated in the API endpoint Process Flow diagram above.        Note: the questionsCount value is passed as a parameter to the assignQuestionsToTest action.    3. In the action implementation, return a string with the message you want conveyed to the user based on the result of the action execution. Example: “2 questions successfully added to the test”.   4. Define the bound action - assignQuestionsToTest in srv/cat-service.cds file.    Resources:   Bound vs Unbound  Read more on bound and unbound actions (11.5.4.1 Invoking an Action)  Modeling in CDS  Querying in JavaScript   Task Checklist – post screenshot in the reply section  Create a file named test.http in the root directory of our project. Copy and paste the following code that will enable you to make an API call. Feel free to use other tools to test the endpoint.  Replace YOUR_TEST_ID in the link with one of the test IDs you manually populated in week 1.        POST http://localhost:4004/dev-challenge/Tests(ID=YOUR_TEST_ID,IsActiveEntity=true)/DevChallengeService.assignQuestionsToTest Content-Type: application/json {"questionsCount":3}       Click on Send Request to make a call to the implemented endpoint. The response should return a HTTP 200 status code with a message (the message can vary depending on the number of questions requested, the state of your data and validation status).        ... View more

Good job so far! Welcome to the third week of this month’s SAP Developer Challenge. If you have not yet read the initial blog post, please do so and complete the first week’s task and the second week’s task as we will need them.  Task description  This week we will move from the back-end side and get started with the front-end. We will focus on displaying the tests data from our models to the browser. To achieve that, we need to implement a user interface. Below is the flow that we desire to implement on the user interface:  Task Outline  Our goal is to implement the Tests List page which displays all tests available in our model and Test Object page which displays the test details of a specific test when the row item is clicked from the Tests List page. We will leverage the SAP Fiori Elements template to generate the UI then we will add our custom elements to the generated UI as need arises.     Steps  Follow the steps outlined in the tutorial: Generating a user interface from the Steps headline (cover only number 1). Remember to replace the tutorial project name, entity and descriptions with our current project details as shown below as you work through the steps.  The following files should be visible on the project once finished:    Running cds watch should update the browser details to display as follows:     2. Clicking the web application URL at this point will not display any test records as we have not yet worked on the logic to display the data. This can be achieved by adding OData annotations in the project. In the annotations.cds file of the app directory, add annotations to enable display of the test records. Copy the starter code below and paste it into the app/fullstack-dev-challenge/annotations.cds file. Complete the remaining three fields to be displayed on the table (that is, Description, Created By, and Created At).    using DevChallengeService as service from '../../srv/cat-service'; annotate service.Tests with @(UI.LineItem: [ { $Type: 'UI.DataField', Label: 'Title', Value: title, }, ]); annotate service.Tests with @( UI.FieldGroup #TestDetails: { $Type: 'UI.FieldGroupType', Data : [ { $Type: 'UI.DataField', Label: 'Title', Value: title, }, ], }, UI.Facets: [{ $Type : 'UI.ReferenceFacet', ID : 'TestDetailsFacet', Label : 'Test Details', Target: '@UI.FieldGroup#TestDetails', }, ] );   Resources:  Adding SAP Fiori Annotations  Defining Line Items  Grouping of fields  SAP Fiori Elements Feature Map  Adapting the object page header title and description  Launching guided development    Task Checklist – post screenshots in the reply section  Successful addition of annotations should display your initial test records when the go button is clicked.    2. Clicking on a specific row should display the test details as below:    Task 2  Use guided development to customize the above page (test details UI) to appear as in the screenshot below. To begin, open the Command Palette using CMD/CTRL + Shift + P and type: Guided Development. Select Fiori: Open Guided Development.  Hint: we want to add a new section named Questions and a custom action named Add Questions to our Object Page.  Task Checklist  Post a screenshot of your enhanced UI in the reply section.  ... View more

If you have not checked out the initial blog post for this challenge, please do so and get your development environment set up as outlined in the post.  Task Description  We are working on creating test(s) for a particular course/subject. We need to have a pool of questions (related to the course/subject) that we can pick from to make up a test. A single test can be associated with several questions, but each question belongs to only one test. Through the relationship between tests and questions, one should be able to access all questions related to a specific test and easily access the specific test to which a question belongs (hint: backlink).  Additionally, we need to have a right answer for every question and a question can only have one right answer. An answer cannot exist without a question. If a question is deleted, so should the linked answer be deleted.  We will get started with database modeling using SAP CAP. We delve into the architecture, carefully defining two core entities and an aspect respectively: "Tests," "Questions," and "Answers".   Tests Entity – serves as a container for organizing different test cycles. Each entry within the Tests entity represents a unique object with attributes such as test ID, title, description, createdAt, createdBy, modifiedAt, modifiedBy and any other vital information relating to tests. A single test can have many questions. This entity allows us to categorize and manage tests efficiently, facilitating easy retrieval and presentation of tests data.  Questions Entity – serves as a repository for individual questions comprising the intellectual content of our tests. Each entry in the Questions entity comprises attributes such as ID, text, and any other vital information relating to questions. Many questions can be associated with a single test, but each question belongs to only one test (that is, two different tests cannot have the same question). Centralizing questions in this entity allows us to create a cohesive reservoir of knowledge that can be easily linked to a Test instance.  Answers Aspect– records the correct answer to a particular question. Each record in this aspect corresponds to a correct answer linked to a specific question. Each entry in the Answers aspect comprises attributes such as ID, and text. The separation of answers from questions reinforces data integrity.  Why an Aspect instead of Entity for the Answers?  Aspects are well suited for representing data that does not have a distinct identity of their own. In our schema design, the answers cannot exist without a question. For example, if a question record is deleted, we would want an answer associated with it to be deleted as well. Using an aspect in this case allows us to associate answers data directly with questions without creating a separate entity.     Task outline  Our goal is to perform entity-relationship modeling based on the above entities' description and then populate initial data in csv files to be used in the next tasks. Below is a visual representation providing details (entity properties and data types) to help with the modeling.  Steps  Model the entities in the db/data-model.cds file.  Declare the remaining entities in srv/cat-service.cds file (The Tests entity has already been declared).  Generate an empty set of initial csv files and then manually populate them with about two or more records of data each. Note: remember the relationships that exist between entities when populating the records.    Resources  Here are some resources to guide you through this task:  CDS Command line Interface tools  Domain modeling  Compositions vs. Associations  Modeling to many associations  Modeling services in CDS  Providing Initial Data    Task checklist  Run the application (cds watch). Note that the initial errors displayed in the terminal after our development environment setup should have disappeared.    Click on the URL that the server is listening on to access the page displayed below:  Under Service Endpoints, click on $metadata and post a screenshot into this discussion thread. Collapse other sections and focus on the <EntityType Name=”...”> tags as shown below.   ... View more

Podcast: https://podcast.opensap.info/sap-developers/2023/09/28/sap-developer-news-september-28th-2023/ 10k ABAP Students on Exercism 10000 ABAP students on Exercism (Blog Post): https://blogs.sap.com/2023/09/20/10000-abap-students-on-exercism/ SAP TechEd DemoJam Are you ready for SAP DemoJam at this years SAP TechEd (2023)? (Blog Post): https://groups.community.sap.com/t5/bengaluru-discussions/are-you-ready-for-sap-demojam-at-this-years-sap-teched-2023/td-p/270562 SAP DemoJam stars revealed! Announcing the six finalist teams (Blog Post): https://groups.community.sap.com/t5/sap-teched-blog-posts/sap-demojam-stars-revealed-announcing-the-six-finalist-teams/ba-p/279254 SAP TechEd Bangalore (Event Site): https://www.sap.com/events/teched/bangalore.html What’s New in SAP BTP  What’s New in SAP BTP – Q32023 – Join us Live! (Blog Post): https://blogs.sap.com/2023/09/26/whats-new-in-sap-btp-q32023-join-us-live/ Q3 Summaries for Data & Analytics SAP Datasphere News in September: https://blogs.sap.com/2023/09/28/sap-datasphere-news-in-september/ Calculation View Features of 2023 QRC3: https://blogs.sap.com/2023/09/26/calculation-view-features-of-2023-qrc3/ What’s New in SAP HANA Cloud – September 2023: https://blogs.sap.com/2023/09/25/whats-new-in-sap-hana-cloud-september-2023/ SAP Analytics Cloud release for Q3 2023 Roundup: https://blogs.sap.com/2023/09/27/sap-analytics-cloud-release-for-q3-2023-roundup/ What’s New in SAP Analytics Cloud Modelling Calculations QRC Q4 2023 Release: https://blogs.sap.com/2023/09/25/whats-new-in-sap-analytics-cloud-modelling-calculations-qrc-q4-2023-release/ Devtoberfest Week 2 Recap All the Devtoberfest events: https://groups.community.sap.com/t5/devtoberfest/eb-p/devtoberfest-events ============================================================================ CHAPTER TITLES 0:00 Intro 0:10 10k ABAP Students on Exercism 0:52 SAP TechEd DemoJam 1:42 What’s New in SAP BTP  2:56 Q3 Summaries for Data & Analytics 3:52 Devtoberfest Transcript Hey folks, Rich Heilman here. Just wanted to point out that we now have over 10,000 ABAP students who have completed over 215,000 ABAP exercises or challenges on the Exorcism platform. Exorcism is a free learning platform for many different programming languages. Last year, a few community members like Lars, Mark, Mike, and others, launched ABAP on exorcism, with many different exercises based on ABAP. If you haven't heard about Exercism and want to try some of the ABAP challenges yourself, have a look at Lars' blog post today for more information about how to get started. Alright, we are on take 972 because we are in the fishbowl here in Walldorf and there There are so many people walking by, had to close the curtains, but come on. We all love being in front of an audience, having fun, and showing innovation. And that is what is going to happen this year, SAP TechEd 2023, where ideas get real. And in order to prove it, in order to show it, we have brought back the SAP DemoJam. That's right, folks. SAP DemoJam is back on stage live in Bangalore. Six teams, six minutes, no slides, all live. We are ready and we hope you are too. Come, sign up, register in Bangalore and be there to see the DemoJam live. Hello, everybody. I hope you're having a great time. Are you fascinated with the new innovations happening on SAP BTP and like to stay updated? If you are new to BTP, it is business technology platform that has five key pillars. I welcome you to join What's New in SAP BTP, a quarterly series that highlights the new developments happened during the fourth. As we near the end of Q3, join our product experts live on YouTube on October 19 at 4 in Central European time as they share new product updates. Our product experts, Yungna Abbasi talks about SAP Build Work Zone, Thomas Hammer talks about SAP HANA Cloud, Harold Stevens and Boris Zarsky talks about DevOps Portfolio on SAP BTP. For more details, please read up the blog post by Cecilia Huergo. Links to the blogs are in the description below. Thank you. We are in the last week of September 2023, which is the second week of the tower fest, as well as the last week of this fourth. Our product experts in SAP Data and Analytics Organization published several blog posts to give you summaries of all the new features recently introduced. Klaus Petersauer shares SAP Data Sphere news, including not only great new features, but also updated guidance documents. Thomas Hammer shares what's new in SAP HANA Cloud QRC 3D list of SAP HANA Cloud. And Orla Kallen gives you the Q3 2023 roundup for SAP Analytics Cloud. To have as well a look into the future, Amanda Murphy introduces some of the latest updates to the QRC 4 release of the SAP Analytics Cloud, such as new and improved formulas and better performance on large currency rate tables. You will find links to all these jewels in the description of today's episode. Hey everyone, we are in week 2 of Devtoberfest 2023. Monday was focused on ABAP and CAP sessions covering SaaS Enablement for CAP and ABAP Cleaner. Android touches on the ABAP Restful Application Programming Model, explaining the recently added features in RAP. Tuesday is dedicated to low-code, no-code developments. We saw a session on SAP build, process automation, event-based triggers to the process, and many more. On Wednesday in the integration track, there were interesting sessions on automation, generative test-driven developments with ChatGPT for SAP Integration Suite. Following the SAP's approach of keep the core clean, there was also a session on event-driven architecture with SAP S/4 HANA and Advanced Event Mesh. How can we leave out AI? Do you want to get some personal recommendations using AI and learn AI Core Toolkit? Check out Thursday's session in Data Analytics AI track. We end the week with UI5 sessions on TypeScript and UI5 Web Components for React. If you are yet to take part in the contest, you still have two weeks left. Do check out the replays, complete the validation tutorials, earn the points and move up in the game board. Well, the October 1st is not just sessions and learning. We have fun Fridays too. Last week, we saw some creative submissions in Petoberfest This Friday, we have two gaming nights. Come and play some poker which will be hosted by Srini and the other game will be hosted by Thomas which is Ultimate Chicken Horse. Well, I have no idea what it is. Let's check it out tomorrow. Happy learning with fun. ... View more

(Check out the SAP Developer Challenge - APIs blog post for everything you need to know about the challenge to which this task relates!) This month's Developer Challenge consists of a number of tasks. Each task is introduced in a new, separate discussion thread on the SAP Community platform, specifically in the Application Development group. Background In each new discussion created, a new task will be presented. The context will be explained and relevant background information and pointers to helpful resources will be provided. But most importantly for you, the task itself will be described in detail, and that detail will include exactly the result that you need to produce. That result will be in the form of a string, which you will then need to share in a reply to that task's discussion thread. But. Instead of sharing the result in its raw form, you'll first need to hash it with your SAP Community ID. This is for two reasons: First, you can share your result but no-one can copy your answer, as it will be hashed with another value unique to you - your SAP Community ID. This means that you can share your hashed task result value openly but no-one can copy it and use it as their own. Second, it's a good opportunity to interact with a simple API, providing data in the URL path, but also providing your SAP Community ID as a value in a special header in the HTTP request. Hashing data is quite straightforward and there are libraries built into many programming languages to do this. It is not normally necessary to have to use an API call to use a hash function. We are just providing one here to give you some extra API work to do as part of this month's challenge! Hashing your value When you have a value which represents the result of a task, that you need to share, follow this procedure. For this example, let's say that the value is the string my-task-result. Call the hash endpoint to get your hash There's a simple HTTP service at https://developer-challenge.cfapps.eu10.hana.ondemand.com/ that currently provides a single endpoint /v1/hash. Use this endpoint as instructed to receive a hash. You must provide two pieces of information: the value you want to hash (as part of the URL path) your SAP Community ID (in a header) How you specify each of these two values is described on the HTTP service's landing page. Make sure you follow the instructions. If your call is successful, you'll receive a hash in response. The hash mechanism uses SHA256 and a hex digest is what's provided as the hash output, in case your interested. Reply to the task's discussion thread with that hash Once you have the hash, post a reply to the task's discussion thread, with that hash value. DO NOT ADD ANYTHING ELSE TO THAT REPLY. Don't be tempted to add any formatting, either. Include just the hash value, with no other content. This is because we will be automating the checks for correct responses, and if we cannot successfully parse out the hash value from your reply, that value won't be counted. Your task So the very first task of this month's Developer Challenge ... is to make sure you can follow the above process to hash a value (representing any given answer to a future task in this series) and provide it in a reply to the discussion thread. Use the static value this-is-the-year-of-the-api (don't include the line number 1 in there, that's just an artifact of how preformatted text is rendered on this platform) and follow the above process to get a hash for this value and post the hash as a reply to this discussion thread. You can call the hash endpoint any way you like. Note that you can't just call it in your browser, as a basic GET request. In other words, you can't just make a simple HTTP GET request to https://developer-challenge.cfapps.eu10.hana.ondemand.com/v1/hash(value='this-is-the-year-of-the-api') and expect to get a successful hash response. You must provide an extra HTTP header in your request, conveying your SAP Community ID, as described in the landing page. Hints and tips You can make the API call to get a hash for your combination of value and SAP Community ID any way you wish. Your favorite programming language For example, you could use your favorite programming language. There'll be a library that will let you make HTTP requests, add custom headers, and capture the body of the response. The REST Client extension If you're comfortable in VS Code or the SAP Business Application Studio, you can use the REST Client extension (which is built-in to SAP Business Application Studio Dev Spaces). This extension lets you define HTTP requests, and run them. Here's an example of this in action: Using the REST Client extension to make the hash API call Postman You could also use a graphical HTTP client such as Postman. Using Postman to make the hash API call A command line client You can of course use a command line client, arguably the most flexible and powerful approaches. And after all, #TheFutureIsTerminal, right? There are many command line HTTP clients, such as wget, httpie and of course curl, which is used everywhere, even on Mars. Here's an example using curl: curl \ --include \ --header "CommunityID: qmacro" \ --url "https://developer-challenge.cfapps.eu10.hana.ondemand.com/v1/hash(value='this-is-the-year-of-the-api')" The response (which includes the HTTP headers in that response, because we asked for them with the --include option), looks like this: HTTP/2 200 content-type: text/plain; charset=utf-8 date: Sat, 22 Jul 2023 13:53:34 GMT etag: W/"40-LWwbQuJtCsQ3SBBXmdG8hHlJ0EI" x-correlation-id: a718cf85-83a6-4d3a-54df-9791f1cea235 x-powered-by: Express x-vcap-request-id: a718cf85-83a6-4d3a-54df-9791f1cea235 content-length: 64 strict-transport-security: max-age=31536000; includeSubDomains; preload; b8193c6703e9d123e4aa639e43eee631a2f6e3788508b5c6fb3098a3f201607c Sharing your hash in a reply to the discussion thread In each of these examples, the hash received in response is: b8193c6703e9d123e4aa639e43eee631a2f6e3788508b5c6fb3098a3f201607c This is the value that must be posted in a reply to this discussion thread. Just copy-paste it into the body of a new reply. ... View more

This post is part of the UI5 Web Components for React Challenge (June 2023)   Welcome to the first week of our developer challenge! Your objective is to utilize the Table component from UI5 Web Components for React to showcase the data stored in the `tableData` variable on the webpage. To accomplish this, you'll need a beginner's understanding of React and JavaScript. If you're unfamiliar with these topics, we've compiled some helpful resources for you to brush up on the fundamentals. Resources UI5 Web Components for React JavaScript Basics JavaScript Arrays General Overview of React React Documentation React Components Rendering Lists   Getting Started To get started, please sign up for an account on CodeSandbox, which you can access here. Make sure you are signed in; otherwise, you won't be able to fork the repository and work on your solution. You can verify your login status by checking the menu located at the top left of the page. It should resemble the screenshot provided. Once you're signed in, fork the repository I've created by visiting the following link and clicking on the "fork" button at the top right of the webpage.   The Challenge Goal: Create a table using `tableData` in src/Solution.jsx You have three tasks you need to accomplish to get credit for completion. 1)  Change the name of the title in App.tsx to include your name. This title will change every week. 2)  In Solution.jsx, below the label, create a table using the Table component from here.  This table should create all table rows dynamically and load all rows at once. The column headers should match the object parameter labels. You are going to need to add titles to each of the rows in the data. I used tasks I was completing for this week as inspiration. 3) Take a screenshot of your full table and header like the screenshot at the top of this blog post and post it to THIS discussion. You will be writing your code in the Solution.jsx file. As you write and save your code, you should observe the corresponding changes in the development space located on the right side of the screen. If it isn’t automatically updating, you can click the refresh button on the right that appears when you hover over the panel. Note: If you encounter issues with your frontend not loading, ensure that you have imported all the necessary dependencies. Unfortunately, the debugging experience may not provide clear error messages. One useful approach is to comment out sections of code until the UI loads, then gradually uncomment to isolate the problematic line.   Get ready to showcase your React skills by incorporating the power of UI5 Web Components! Good luck! ... View more

Devtoberfest Week 1 All the Devtoberfest events: https://groups.community.sap.com/t5/devtoberfest/eb-p/devtoberfest-events Devtoberfest 2023 welcome blog post: https://groups.community.sap.com/t5/devtoberfest-blog-posts/devtoberfest-2023-welcome/ba-p/9358 Comparative Analysis of Developing an Application on Cloud Foundry and Kyma Developing an Application on SAP BTP Cloud Foundry Runtime and SAP BTP Kyma Runtime: A Comparative Analysis (Blog Post):  https://blogs.sap.com/2023/04/28/developing-an-application-on-sap-cloud-foundry-runtime-and-sap-kyma-runtime-a-comparative-analysis/ Clean code checks for ABAP – Cloud Edition Product Updates for SAP Business Application Studio – September Edition (Blog Posts): https://blogs.sap.com/2023/09/11/clean-code-checks-for-abap-cloud-edition/ How to enable clean code checks for ABAP (Blog Post) https://blogs.sap.com/2022/05/05/how-to-enable-clean-code-checks-for-abap/ SAP TechEd Application Development and Automation SAP TechEd: https://www.sap.com/events/teched.html SAP TechEd Bangalore Content Tracks: https://www.sap.com/events/teched/bangalore/content-tracks.html SAP TechEd Virtual Content Tracks: https://www.sap.com/events/teched/virtual/content-tracks.html Product Updates for SAP Business Application Studio – September Edition Product Updates for SAP Business Application Studio – September Edition (Blog post): https://blogs.sap.com/2023/09/18/product-updates-for-sap-business-application-studio-september-edition/ ======================================================================== CHAPTER TITLES 0:00 Intr 0:10 Devtoberfest Week 1 1:37 Comparative Analysis of Developing an Application on Cloud Foundry and Kyma 2:42 Clean code checks for ABAP – Cloud Edition 3:49 SAP TechEd Application Development and Automation 4:56 Product Updates for SAP Business Application Studio – September Edition Transcript So, we're coming already to the end of week one of Devtoberfest. It's started, the month-long celebration, annual celebration of what makes us developers. It's a LearnFest, great sessions, even better participation from you lot. So, yeah, we've got three more weeks to go. Some of the great sessions this week I just want to highlight. We had Martin Stensig on Monday telling us how we can, showing us how we can make SAP extensibility a reality with SAP Cloud Application Programming Model, all in 60 minutes. We had Vanessa Micheli-Schmidt show us how to get started with low-code and no-code development. We've had some great sessions on the topic of integration, on graph, on event management, and event driven architecture, and also API management. Actually, this is a low tree. We've also had Klaus-Peter Zauer show us all about SAP Datasphere. And last but certainly not least, on Friday, one of the highlights for me was the inimitable Volker Busek with lots of new features for WDI5. It's not too late to get started with Devtoberfest and start earning points. So, head on over to Tom Jung's blog post to find out how. See you on the SAP community. In this segment I'm going to call You May Have Missed. In April of this year, you may have missed a great blog post from Alper de Dalhieu. Alper documents his journey along with Martin Frick on comparing how to develop an application on SAP BTP Cloud Foundry Runtime and SAP BTP Kyma Runtime. After explaining at a high level what the Kyma and Cloud Foundry runtimes are, Alper then shows us how to containerize an application and integrate it with the involved frameworks. In the next sections, you'll dive into service management and consumption, extensibility, service mesh, multi-tenancy, there's so much more as well. So please, if you're looking to brush up on the differences between these two runtimes, if you just want to experiment and build an application and practice your skills with both runtimes, please give this blog post and all the associated content a really good look. Let us know in the comments any questions you have or feedback on what your experience was like. Hi everyone. We developers know how important it is to maintain clean code to achieve the best possible results from our software developments. You might have already seen the previous blog post by Olga, how to enable clean code checks for ABAP focusing on Code Pal. In her recent blog post, she explains that now there is a free and open source version of Code Pal for ABAP Cloud sets, which is of course cloud enabled, hence can be executed in SAP BTP ABAP environment and is also remote enabled. Additionally, it provides quick fixes to automate and thus speed up the adaptation to clean ABAP. In this blog post, she points out some of the technical prerequisites, the detailed steps to install Code Pal for ABAP cloud checks via ABAP Git, how to execute Code Pal for ABAP Cloud checks, as well as how to use quick fixes in an automated way. So check out this blog post for more information and start implementing clean code in your ABAP Cloud developments. Thank you. Are you curious about the path to unleashing your developer potential? Well, you've come to the right place where ideas get real. A very warm welcome to those of you joining the application development and automation track at TechEd 2023. Our track is a great fit for you if you're interested in building apps, automating processes and improving business size. We offer a wide spectrum of options, from pro-code to no-code. You learn how to use generative AI and pre-built templates that redefine the way you create enterprise solutions. Just imagine, whether you're a business user or a developer, you now have the power to develop and extend your applications without any limits. Learn to innovate more productively, while remaining secure and scalable. Master the art of working in fusion development teams and foster innovation with great governance practices. And at last, gain experience in enterprise automation and speed up your journey to an autonomous enterprise. Ready to unleash your potential? Join me and SAP experts at TechEd, where ideas get real. Richy is set today and see you in November. So the September edition of the SAP Business Application Studio is now out with lots of improvements and new features. These are all described very nicely in Birgit Selvac's blog post. For example, the software as a service application subscription processes have been improved. And one of the improvements is basically automatic creation and mapping of routes. In another innovation, we have SAP Business One as a new system that's now available in the Service Center, meaning you can discover and start to consume services from these systems in your DevSpaces. And last but not least, goodbye project page, hello storyboard page. This storyboard is now the start page for your DevSpaces, and it's great. Today it contains a graphical representation of all your applications. ... View more

(Check out the SAP Developer Challenge - APIs blog post for everything you need to know about the challenge to which this task relates!) This task brings you one more step closer to being able to call the API endpoint to look at the details of the directory you created in your SAP BTP account in Task 7, in that you'll learn how to request an access token to use as the credentials in the API call. Background In the Background section to Task 8, while you were in "reading mode", you looked at the SAP Help Portal documentation Account Administration Using APIs of the SAP Cloud Management Service. The first child node in this documentation that you come across is essential to this task. It's Getting an Access Token for SAP Cloud Management Service APIs and describes how to go about requesting an access token. OAuth access tokens are obtained through various means, depending, to an extent, on what's being protected, who owns the resource, and so on. There are different so-called "grant types" in OAuth. They're sometimes also referred to as "flows". There's an archived CodeJam content project over on GitHub, in the SAP-archive organization, that gives a brief overview of these grant types. It's Exercise 02 - Understand OAuth 2.0 at a high level. Being in the SAP-archive organization indicates that the content is no longer being maintained. But this particular exercise content is still valid and worthwhile reading. OK, back to the SAP Help Portal documentation. You'll see that "the APIs of the SAP Cloud Management service for SAP BTP are protected with the OAuth 2.0 Password grant type". In some cases the Client Credentials grant type is at play, but not here in our context (mostly as we created the service instance in Cloud Foundry, for reasons explained in the corresponding task). So far so good. And just to remind you of where you are in this group of tasks, you've now done steps 1 and 2 of the steps introduced in Task 8. This time you're tackling step 3. create an instance of the SAP Cloud Management Service, with a plan that contains the appropriate scope(s) that you need ✅ create a service key based on that instance ✅ use the details in the service key to request an access token use the access token thus obtained to authenticate a call to the API endpoint So you'll need to follow the SAP Help Portal instructions to request an access token. Requesting an access token involves making an HTTP call to an Authorization Server endpoint. In making such a request, information must be supplied to specify and credentialize that request. The information required here, being a request for access to a resource that's protected with the Resource Owner Password Credentials grant type (you can see why this is shortened to just "Password" grant type, right?) is: the type of grant type in play the resource owner's username and password (this is the "Resource Owner" part of the grant type) the client's identity (the identity of the client that will be making the API calls) We know that: the grant type in play is "password" you are the owner of the resources that will be requested (the API facilities via the instance of the service you created, in your Cloud Foundry environment) there's an ad hoc identity (client ID) and corresponding secret (client secret) generated that is used to represent the client that will be making the requests The client (in the case of this group of tasks) will just be the HTTP client you use to make the calls. It could just as well be a script, a program, or another system. You know where the resources are that you'll be requesting (the API endpoints), you know who the resource owner is (you yourself) but where is this client ID and client secret? Yes! They're in the service key data that you obtained in the previous task! OK. To finish off this section, it's worth repeating what the section in the Understand OAuth 2.0 at a high level content says for this Resource Owner Password Credentials grant type: This is a flow designed for use in the situation where there is strong trust between the Client and the Resource Owner - more specifically, when the Resource Owner trusts the Client (application) so much that they are willing to give their username & password credentials to the Client, which can then use them to request an access token. One redeeming feature of this grant type is that the Client does not have to store the credentials, as the access token granted can be long-lived, and / or the lifetime of the token can be extended by use of a refresh token. OAuth as a concept is wonderful, but it does take some thinking time to let things sink in. Embrace the wonder of OAuth and its many facets, and enjoy this task! Your task Your task, then, is to request an access token in this context of the Resource Owner Password Credentials grant type with which the API endpoint(s) of the Accounts Service API are protected. When your request is successful, you'll obtain not only an access token, but other data with it, in a JSON object. Here's what it will look like: { "access_token": "eyJhbGciOiJSUzI1NiIs...", "token_type": "bearer...", "id_token": "eyJhbGciOiJSUzI1NiIs...", "refresh_token": "e72b61a9a9304dde963e...", "scope": "cis-central!b14.glob...", "jti": "579fea14a1cf47d7ab9e..." } Actually, there will also be another property, which has been deliberately removed from this sample. It's one that tells you when the access token supplied will expire, and the value is a duration, in seconds. Identify this property, take the duration, in seconds, and compute the number of hours, rounding up to the nearest whole hour. That integer result is what you should send to the hash function and reply with, as usual, and as described in Task 0. Hints and tips The task here is, from one perspective, quite straightforward. But from another perspective, if this is your first time requesting an access token in an OAuth flow like this, it's worth taking your time and making sure you get the right values passed in the right way to the call to the Authorization Server, i.e. to the call to the resource that ends with /oauth/token. You may have come across this URL path before; while it's not a standard, it's in common use to represent the endpoint of an OAuth Authorization Server that can be used to request an access token. It's shown, by the way, in the Getting an Access Token for SAP Cloud Management Service APIs documentation section in the SAP Help Portal. Use the sample curl invocations in Step 3 of the Procedure section in Getting an Access Token for SAP Cloud Management Service APIs as a guide. You can of course use whatever HTTP client you wish to make the request for the access token. Whether you use curl or something else, be aware that the data that you send, as described in the documentation, should be sent with content type application/x-www-form-urlencoded. This means a series of name and value pairs. And take this as a clue - in particular the urlencoded part. While the example in the documentation shows explicitly that the HTTP POST method should be employed (with -x POST, but see the note below), you are likely to have some values that you need to transmit, that have characters that need to be so encoded. And for those of you lovely folks who are using curl, you may find the --data-urlencode parameter very useful! 🙂 If you use curl and supply data with the -d parameter, then the HTTP POST method is used by default by curl, and you don't have to actually specify -X POST. Nor do you have to explicitly send a Content-Type header with the value application/x-www-form-urlencoded either, curl sends that by default. For discussion What approach did you take to request the access token? What form does the access token take? What other interesting information is returned in the JSON object? ... View more

Rapid Fire Segment Devtoberfest group page: https://groups.community.sap.com/t5/devtoberfest/gh-p/Devtoberfest Devtoberfest event page: https://groups.community.sap.com/t5/devtoberfest/eb-p/devtoberfest-events Devtoberfest calendar: https://groups.community.sap.com/t5/devtoberfest/eb-p/devtoberfest-events?calendar=true Devtoberfest Contest details: https://groups.community.sap.com/t5/devtoberfest-blog-posts/devtoberfest-2023-contest/ba-p/9357 SAP Cloud Application Programming Model August 2023 Release - https://cap.cloud.sap/docs/releases/aug23 Improvements to Horizon Visual Theme for SAP Fiori (Blog Post) - https://blogs.sap.com/2023/09/07/improvements-coming-to-the-horizon-visual-theme-for-sap-fiori/ What’s new for SAP Integration Suite – August 2023 What’s New for SAP Integration Suite – August 2023: https://blogs.sap.com/2023/09/07/whats-new-for-sap-integration-suite-august-2023/ SAP API Management: APIs and Revisions: https://blogs.sap.com/2023/07/31/sap-api-management-apis-and-revisions/ Exactly Once setup for IDOC and XI receivers: https://blogs.sap.com/2023/08/30/exactly-once-setup-for-idoc-and-xi-receivers/ Get Started with API Revisions tutorial: https://developers.sap.com/tutorials/api-mgmt-revisioning.html SAP Business Accelerator Hub: https://hub.sap.com SAP TechEd Digital Transformation with Cloud ERP SAP TechEd: https://www.sap.com/events/teched.html SAP TechEd Bangalore Content Tracks: https://www.sap.com/events/teched/bangalore/content-tracks.html SAP TechEd Virtual Content Tracks: https://www.sap.com/events/teched/virtual/content-tracks.html SAP Developer Challenge Week 2 September Developer Challenge initial blog post: https://blogs.sap.com/2023/09/06/sap-developer-challenge-full-stack-sap-cap-sap-fiori-elements/ September Developer Challenge week 2 task: https://groups.community.sap.com/t5/application-development-discussions/sap-developer-challenge-full-stack-back-end-development-api-exposure-week-2/m-p/286252 Not-to-be-missed Events for Developers using SAP HANA: Devtoberfest: https://blogs.sap.com/2023/09/12/data-analytics-sessions-at-devtoberfest-2023/ Webinar “What's New in SAP HANA Cloud Q3 2023”: https://event.on24.com/wcc/r/4327631/049B85503CE6986E2E9250A7E8AD6668 SAP HANA Cloud Early Adopter Care Program: https://blogs.sap.com/2023/09/11/register-now-sap-hana-cloud-2023.q2-early-adopter-care-program/ “Getting Started with Machine Learning using SAP HANA” as a new SAP CodeJam topic: https://blogs.sap.com/2023/08/02/getting-started-with-machine-learning-using-sap-hana-as-a-new-sap-codejam-topic/ ======================================================================== CHAPTER TITLES 0:00 Intro 0:10 Rapid Fire 2:56 What’s new for SAP Integration Suite – August 2023 4:14 SAP TechEd 5:12 SAP Developer Challenge week 2 5:54 Not-to-be-missed Events for Developers using SAP HANA Transcript Welcome to this huge episode of SAP Developer News. So much going on, we thought we'd kick off with a rapid fire segment. First, we have Devtoberfest. We've been talking about it for the past several weeks and it's finally upon us. Devtoberfest is going to start Monday, September 18th and run through Friday, October 13th, tons of content ready for you, kicking off already this week with educational sessions. And remember check out the calendar on the SAP community. We have all the sessions, links to the content you can join live. You can watch after the fact, all the recordings are available immediately after the sessions. And we'll have the contest and, tutorials for you to complete, to earn points in the contest. All that kicks off next week and runs for the following four weeks. Check back every week with the developer news to get highlights of the previous week of Devtoberfest and a cool look ahead to what we have planned in the next week. Next in the rapid fire segment, we've got a new release of the SAP cloud application programming model. The August release just came out a couple of days ago, and we see various improvements around the CDS language and compiler with constraints for text entities. We see improvements for calculated elements and consistent timestamps in Node.js. In Java, we see CDS reuse models in jars, and we have a new audit logging plugin available. Now that's an early beta, but you can still give it a try. I found most interesting, the Postgres SQL step-by-step guide, new feature that was introduced with this year's major release of the cloud application programming model, with some great new documentation for it. And that goes right along with the Devtoberfest session that I'm going to be giving in two weeks. This is going to look at hybrid testing with multiple database options on a Postgres and SQLite. So look for that session coming soon. And then finally, in the rapid fire segment, we have improvements coming to the horizon visual theme for SAP Fiori. Now, it isn't a big technological difference, but we've listened to feedback from our end users and we've made usability and visual changes to improve the usability in the Horizon theme. These changes are going to be coming soon to SAP UI5, SAP GUI, and Web Dynpro ABAP-based applications, as well as the Fiori Launchpad. So be on the lookout for these nice new changes and check out the blog post on the topic by Thomas Rees, where he gives you before and after looks at the changes that are going to be made. So with that, I close out the rapid fire segment. Thanks for joining and we look forward to seeing you in Devtoberfest sessions all throughout the next four weeks. Hola, SAP developers. I just want to bring your attention to a blog post recently published by Gabriela, which highlights what's new for SAP Integration Suite. For example, API revisions in API Management. You can now maintain multiple revisions of your API proxy definitions, policies, and resources, which means that you can refer to an older state of the API. For example, revert and restore the API to an older state. There is a tutorial available if you want to familiarize yourself with the new API version functionality. There is also a new version of Cloud Connector. There is now native support for the new Apple M1 and M2 process. Also, you can now configure a secure network connection when setting up a cloud connector for RFC communication to an ABAP backend system. Now, related to Exactly Once Delivery, there are six new integration flow design guidelines for Exactly Once Delivery scenarios. Make sure to check them out in case this is a requirement in your integrations. Now there's a new URL for the SAP Business Accelerator Hub. You can now access the website via hub.sap.com. The older URL, api.sap.com, is still supported, but make sure to update your bookmarks so you can access the new year. There is much more, so check out the links I'm including in the description. The complexity of today's heterogeneous system landscape make transformation quite a challenge. But at SAP, we've got your back. Join us this fall at SAP TechEd in the Digital Transformation with Cloud ERP track. Our track is dedicated to exploring different journeys from on-premise to the cloud. We'll address how to build and run intelligent cloud solutions and services, integrating and extending to meet the needs of the modern enterprise. Whether your path is one that leads you towards public cloud or to private cloud, this is the place to learn. We'll share the latest product updates, proven best practices, inspiring customer stories and hands-on sessions from across the portfolio. We'll deep dive into hot topics like artificial intelligence and automation and of course sustainability. Ready to take your transformation journey to the next level? Join us at TechEd, where ideas get real. Register today. Being the second week of the month, we are on the second task of our developer challenge. Last week we worked on project setup and database modeling. If you haven't checked out the first week's task, can you do so as we will build upon that this week? We get to focus on implementing an API endpoint using a bound action and exposing it to allow front-end components seamlessly access it. There are validation rules and stated assumptions in place to help us with the logic implementation. We will get to interrupt our models through queries in order to perform actions like updating fields of an entity. Watch out for a blog post to be released next week explaining the third week's task. The link to the challenge can be found in the details below. Happy coding! Do you work with SAP HANA? Or do you plan to start working with the product? Then there are several events I want you to be aware of, and I want you to take the full benefits of them. One, as you have heard from Thomas Devtoberfest starts next week. Every Thursday you will be able to attend sessions on data analytics and AI. On September 21st the very first session will be about hybrid development on SAP HANA Cloud and SAP HANA using SAP Business Application Studio. Another interesting session for you should be processing semi-structured data using JSON Document Store in SAP HANA Cloud on September 28th. 2. On September 26th, join our SAP HANA Cloud product management team to learn about the newest release of the product. They will guide you through the most recent updates in the areas of Data Modeling, Migration, Data Lake, or Database Explorer. 3. I am a SAP customer. Then SAP HANA Cloud Product Management Team invites you to join as well a Lead Adopter Care Program. This program is free of charge, and participation in it will give you direct access to SAP HANA development teams. Registration is open now. 4. Last but not least. Last Friday, in Hamburg, Germany, we had the very first SAP CodeJam on the topic of getting started with machine learning using SAP HANA and Python. No prior background is required to participate in such an SAP Code Jam, just bring your enthusiasm, your curiosity and your own laptop. We are looking for those of you who would like to host next event. And if you are interested, then please read my blog post and let us know. I'm looking forward to meeting you.   ... View more