Tutorials ASP.NET Core Tutorial

Production Checklist — Complete Guide

Production Checklist — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of ASP.NET Core Tutorial on Toolliyo Academy.

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ASP.NET Core Tutorial (ShopNest) · Lesson 80 of 100

Production Checklist

Beginner ✓Intermediate ✓Advanced ✓Professional

Professional · 4 — Real projects · ~25 min read · Module 8: Deploy & Cloud

Introduction

Professional project lesson: Production Checklist. You will put together API, data, and security like a portfolio app. Build one piece at a time — do not rush. Production Checklist covers shipping ASP.NET Core to IIS, Docker, or Azure. An app only on localhost does not help your portfolio — deploy at least one demo.

An app on your laptop is not finished until it runs on a server others can reach.

When will you use this?

Use when you are ready to put the app online for users or employers to try.

  • Publishing means copying your built app to IIS, Docker, or Azure App Service.
  • CI/CD runs dotnet test and dotnet publish automatically on every git push.

Real-world: Power BI-style analytics API

The Analytics team building Power BI-style analytics API uses Production Checklist to verify HTTPS, logging, health checks before go-live. business analysts never see the C# code — they just get a fast, reliable KPI reports and filtered data export.

Production-style code

dotnet publish -c Release -o ./publish
# Deploy publish folder to server or container

What happens in production: In Power BI-style analytics API, getting Production Checklist right means business analysts trust the KPI reports and filtered data export every day.

Lesson example (start here)

Copy this smaller example first. Once it works, compare it with the real-world code above.

dotnet publish -c Release -o ./publish
# Deploy publish folder to server or container

Line-by-line walkthrough

CodeWhat it means
dotnet publish -c Release -o ./publishPart of the Production Checklist example — read it together with the lines before and after.
# Deploy publish folder to server or containerComment — notes for humans; the compiler ignores it.

How it works (big picture)

  • Study the example line by line.
  • Each part connects to Production Checklist.
  • Edit one line, save, run dotnet run, and see what changes.

Do this on your computer

  1. Run dotnet publish locally.
  2. Follow the lesson deploy steps for your target.
  3. Open the live URL and test one API or page.
  4. Read the real-world section and name which part of the app uses this topic.
  5. Run the example locally with dotnet run and confirm the same behavior.
  6. Change one value in the example (route, text, or connection string) and predict what will happen before you save.

Experiments — try changing this

  • Change a string or route in the example and save — watch the browser or Swagger response update.
  • Break the code on purpose (remove a semicolon), read the error message, then fix it.

Remember

You learned what Production Checklist is and when to use it in ShopNest. Practice by changing the example yourself. Use the Next link when you can explain it in your own words.

Common questions

What is Production Checklist?

Production Checklist is explained in the introduction above — read it in plain language first.

How long should I spend on Production Checklist?

Until you can explain it in your own words and run the example without looking at the answer. Beginners often need 30–60 minutes per new concept; setup lessons may take one afternoon.

What if I get stuck on Production Checklist?

Re-read the line-by-line walkthrough, check the terminal for red errors, and compare your code character-by-character with the example. Search the exact error text — someone else had it too.

Where is Production Checklist used in real jobs?

See the real-world section above — the same pattern appears in LMS, banking, e-commerce, and SaaS backends. Interviewers ask you to explain it using one concrete example.

Interview prep for this lesson

Practice these questions aloud after reading—each links to a full structured answer.

Mid PDF Detailed
How to handle exceptions using middleware (UseExceptionHandler, UseDeveloperExceptionPage) ● UseDeveloperExceptionPage() shows detailed errors (development only). ● UseExceptionHandler("/Error") handles errors in production with
Short answer: custom page or handler. if (env.IsDevelopment()) pp.UseDeveloperExceptionPage(); else pp.UseExceptionHandler("/Error"); Or inline: pp.UseExceptionHandler(errorApp => { errorApp.Run(async contex…
Junior PDF Detailed
What is middleware in ASP.NET Core?
Short answer: Middleware is a component in the HTTP request pipeline that can: Handle requests, Pass requests to the next middleware, Or short-circuit the pipeline. Middleware can: Perform actions before and/or after the…
Junior PDF Detailed
Introduction to Filters?
Short answer: Filters are ASP.NET Core’s plug-in points that allow you to inject logic before or after specific pipeline stages such as: Authorization Resource execution Action execution Results processing Exception hand…
Junior PDF Detailed
What is a filter in ASP.NET Core?
Short answer: A filter is a component that allows logic to be executed before or after parts of the request pipeline, such as authorization, action execution, or result processing. Real-world example (ShopNest) A ShopNes…
Mid PDF Detailed
Name the five main types of filters.?
Short answer: uthorization, Resource, Action, Exception, and Result filters. Real-world example (ShopNest) A ShopNest ValidateModelAttribute runs before actions and returns 400 if ModelState is invalid—same rule for ever…
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ASP.NET Core Tutorial
Course syllabus
Start here
Module 1: Introduction & Setup
Module 2: MVC Fundamentals
Module 3: Services & Pipeline
Module 4: Entity Framework Core
Module 5: Web API & Security
Module 6: Advanced Features
Module 7: Testing & Quality
Module 8: Deploy & Cloud
Module 9: Portfolio Projects
Module 10: Professional Topics
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