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Lessons (36)

• HCL, Resource Addresses, and Project Layout

  … Refer to a local as local.project , an input as var.environment , and a resource attribute as aws …

• Variables, Locals, Outputs, and Validation

  … Retain its terraform block, replace the original resource and output, and add: hcl variable "project" { type = string description …

• Your First Terraform Project

  Install Terraform and create, change, inspect, and destroy a local file without using a cloud account. Prepare your …

• Cross-Service Data: How to Join Without a Database JOIN

  … events .- P[Projection] U -. events .- P P -- RM[(Order screen read model)] Option 1: API composition The caller …

• CQRS & Event Sourcing

  … balances] ES -- P2[Projection: monthly statements] ES -- P3[Projection: fraud detection] Tools: EventStoreDB, Axon, Marten (Postgres), or Kafka …

• Batch vs Stream and Data Modeling

  … A denormalized projection needs an owner and a measurable freshness delay. One order, two useful models The order …

• AI Specialties and Real-World Examples

  … Write a one-page project brief with the input, output, baseline, data source, split strategy, metric, and three …

• What to Learn in AI, and in What Order

  … staged deliverables and a runnable local document-search project. Make small projects that answer a real question: classify …

• Python Fundamentals

  … one virtual environment per project A virtual environment is a private folder of packages for one project, so …

• Practical Project: Deploy a Real CRM App on EKS

  … The finished environment This is what the DemoCRM development environment looked like at the end of the project …

• Structural Patterns: How to Connect Objects

  … the caller doesn't care what's a file or a folder mermaid flowchart TD P[📁 project] -- R …

• Developer Learning Plan and Document-Assistant Capstone

  … an assistant for your project's documentation Start with a searchable set of documents that you own or …

• Python Web APIs: FastAPI and Django

  … Includes project structure, security and the most common mistakes. The big idea Python has two very different "houses …

• Choosing a Programming Language

  … A framework"] The best first project is a small CLI or API that reads input, validates it, stores …

• Storage, Search and Location Queries

  … Search is intentionally a projection, so define a freshness target and a repair path: retry indexed events, compare …

• Onion Architecture & Clean vs Hexagonal vs Onion

  … IOrderRepository { / EF Core / } } text Shop.sln ├── Shop.Domain (no project references) ├── Shop.Application → references Domain ├── Shop.Infrastructure → references …

• DBMS Foundations, Keys & Normalization

  … Normalized tables protect correctness; a read-heavy path may use a controlled denormalized projection. ![Interview map: keys identify …

• Production Capstone and Interview Practice

  Combine modules, isolated environments, remote state, tests, and reviewed delivery in a production-style storage project. Build a …

• Normalization & Denormalization

  … a materialized sales summary, a search document, a product card projection, or an order total. For each one …

• Providers and Your First AWS Resources

  … Review provider release notes before upgrading a real project. bucket prefix lets the provider choose a unique name …

• Terraform: Start Here

  … 4. Capstone, lesson 16: combine the pieces into a reviewed production-style project. The first exercise needs no …

• Database Internals, Replication and Scaling

  … Materialized views and denormalized projections speed known reads but need refresh/freshness rules. Compression saves storage/network at …

• State, Remote Backends, and Locking

  … Team projects need shared storage, controlled access, and a supported locking mechanism. mermaid flowchart LR A[Developer or …

• What Is Clean Code?

  … you touch it. Try it yourself Open a project you wrote a few months ago. Find one function …

• DRY: Don't Repeat Yourself

  … Three before extracting. Try it yourself Search your project for a number like 0.2 , 100 , or 86400 …

• GitOps, Progressive Delivery and Observability

  … Application metadata: name: shop-api namespace: argocd spec: project: default source: repoURL: https://github.com/example/platform.git …

• Comments & Formatting

  … Prettier and ESLint. Try it yourself Search your project for // . For each comment ask: Could a better name …

• React vs Vue vs Angular

  … Choose based on team, project size and ecosystem.

• Small Functions That Do One Thing

  … names must tell the whole truth. Try it yourself Take a function over 30 lines in your project …

• TypeScript Essentials

  … true in new projects. Key takeaways - TypeScript = JavaScript + compile-time types; they're erased at runtime. - Prefer inference …

• Event-Driven Architecture

  … CQRS Events keep separate read models up to date Write model publishes; read model projects Fast, tailored reads …

• DynamoDB Modeling, RDS Scaling and Data Resilience

  … authorization check Streams Trigger Lambda on changes; build projections Transactions All-or-nothing across up to 100 items …

• AWS Data Pipelines in Plain Language

  … configure table partitions or partition projection so the query engine understands them. A report rerun should not duplicate …

• Node.js and Express

  … routing, the middleware pipeline, validation, async error handling, project structure, configuration, security, rate limiting, logging and graceful shutdown …

• Go Web Services with Gin

  … net/http basics, Gin routes and groups, binding and validating JSON, middleware, a layered project structure, handler tests …

• Backend Design Scenarios

  … query cache after a successful mutation. - Search/index projection: show the authoritative profile data from the primary for …