Back to basics with SAP Cloud Application Programming Model (CAP) - part 2

In this episode 2 of our series, we continue to explore the basics of CAP with Node.js. This time we dig into the detail of what happens with cds init, cds add and cds watch.

🌎 See https://community.sap.com/t5/sap-comm... for all resource links.

Summary
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- [01:58] 👋 Introduction and Greetings
- DJ welcomes the audience and greets them.

- [02:23] 📺 Episode Introduction
- DJ introduces the second episode of the "Back to Basics with SAP Cloud Application Programming Model (CAP)" series.

- [03:19] 📱 Experiment with Camera Setup
- DJ explains an experiment with his camera setup and mentions his colleague AJ joining the session.

- [04:43] 🗺️ Series Overview and Approach
- DJ outlines the series' purpose: a gentle exploration of CAP basics, emphasizing understanding.

- [05:25] 🏃 DJ's Health Update
- DJ briefly updates on his health and mentions his morning run.

- [07:16] 📦 Using Dev Containers with CAP
- DJ talks about using development containers with CAP and mentions a blog post he wrote.

- [09:08] 📰 SAP Developer News
- DJ shares information about the SAP Developer News and mentions a blog post by Riley Rainey.

- [10:32] 💡 Planning for the Session
- DJ discusses the plan for the session, which includes exploring CAP commands.

- [12:06] 👩‍💻 Opening VS Code and Dev Containers
- DJ opens VS Code and explains the process of using Dev Containers.

- [13:15] ⚙️ Exploring `cds init`
- DJ explains the `cds init` command and its purpose in initializing a CAP project.

- [14:12] 💬 Audience Discussion on Language Preferences
- DJ briefly discusses language preferences, mentioning both Java and JavaScript.

- [16:04] 📁 Directory Structure in Initialized Project
- DJ explores the directory structure created by the `cds init` command.

- [17:23] 🤔 Questions about `.eslintrc` and `.gitignore`
- DJ asks the audience for insights into the purposes of `.eslintrc` and `.gitignore` files.

- [19:32] 🔒 Purpose of `.gitignore`
- Stefano explains that `.gitignore` is used to specify files that should not be included in the Git repository.

- [20:58] 🐚 Overview of app components and local development
- App components created on the local file system.
- Development within a container context.
- Importance of not storing data inside containers.

- [22:36] 📜 Understanding git and GitHub
- Differentiating between git and GitHub.
- Explaining the purpose of .gitignore in ignoring files for git.
- Highlighting the significance of not storing sensitive data in repositories.

- [26:10]🧹 Introduction to ESLint and linting in JavaScript
- Discussing ESLint as a linting tool for JavaScript.
- Explaining the role of ESLint in catching compile-time errors and enforcing code style.
- Mentioning the importance of setting rules for code quality.

- [29:56] 🚀 Integration of ESLint with SAP CAP
- Introducing the integration of ESLint with SAP Cloud Application Programming Model (CAP).
- Highlighting the purpose of ESLint rules specific to CAP development.
- Exploring how ESLint checks CAP code against defined rules.

- [32:41] 📁 Explanation of RC Files and Hidden Files
- Clarifying the historical significance of RC files in Unix.
- Describing the naming convention of RC files for configuration.
- Discussing the use of hidden files (files starting with a dot) in Unix-like systems.

- [38:08] 📂 Understanding the Purpose of 'DB' and 'Serve' Directories in CAP
- Explaining the purpose of 'DB' and 'Serve' directories in SAP CAP.
- Distinguishing between the persistence layer (DB) and service layer (Serve).
- Highlighting the need for separation in defining entities, services, and data exposure in CAP.

- [41:04] 📦 Overview of project structure
- Project structure includes directories like `db`, `srv`, `app`, and others.
- CDS language encourages reusable and modularized definitions for projects.
- Explanation of directories like `cds`, `eslintrc`, and `package.json`.

- [43:06] 📝 Understanding package.json
- Package.json contains project metadata, dependencies, and scripts.
- Differentiating between dependencies and dev dependencies.
- The significance of the "scripts" section, including "npm start" for starting the service.

- [46:05] 🛠️ Design time vs. runtime dependencies
- Explains the difference between design time and runtime dependencies.
- Design time tools like watchers and auto restarters are not needed in production.

- [49:45] 🧩 Adding features with "CDS add"
- Demonstrates how to add features to a project using "CDS add."
- Shows the addition of a tiny sample feature and its impact on the project structure.

- [55:44] 🧹 Linting with "CDS lint"
- Introduces linting for a CAP project using "CDS lint."

- [01:02:55] 🗃️ Locating the global installation of SAP CDS DK
- Explains how to find the global installation path of SAP CDS DK.