ASP.NET Core Web API | 3-Layer Architecture + AutoMapper (Step By Step) [04]

In this video, we will divide our solution into 3 projects: DAL, BLL and Web API. We will also use the AutoMapper to map Entities to class Models and vice verca. We will also use Microsoft's class "ActionResult" in our API.

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0:00-1:05 : Recap of previous episode
1:05-1:41 : Introducing the Topics (Multi-Layer Application and AutoMapper)
1:42-4:26 : Adding 2 Different Class library Projects
4:26- 5:06: Explaining Business Logic Layer and Data Access Layer
5:07- 6:24 : Adding the project references
6:24-7:00: Moving the repository folder to the DAL
7:01-9:02 : Installing Entity Framework packages in DAL
9:02-9:33 : Deleting unused packages from Web API
9:33-11:14 : Calling PersonBLL from PersonController APIs
11:15-12:05 : Introducing Model classes vs Entities Idea
12:05-13:28: Calling the DAL functions from BLL
13:28-14:35 : Explaining each layer's function to clear confusion
14:36-15:24 : Fixing errors
15:25-15:38 : Testing the Get Api with the new Project Structure
15:39-16:42 : Creating a PersonModel Class in BLL
16:43-17:11 : Why Use Class Models since we have Entity Classes?
17:12-20:50 : Reason #1 to use Class Models
20:51-21:40 : Reason #2 to use Class Models
21:41-21:58: Introducting the AutoMapper
21:58- 25:04: Dividing the GetPersonByID API function through 3 different layers
25:05-27:13 : Returning ActionResult Type in our Controller APIs
27:13-28:28 : Installing AutoMapper Package
28:28-30:33 : Creating and configuring our PersonMapper
30:34-34:23 : Using our PersonMapper in BLL
34:24-35:19 : Testing the GET APIs that return Class Models
35:19- 38:25 : Dividing The Post API through the different layers + Mapping with AutoMapper
38:26-39:40 : Testing the Post API after the changes
39:41 - 40:29 : Outro

[PasinduBroomer]

thanks alot. so easy to understand. searched everywhere for this. good luck man

[anushagpatel]

Bless you. You cleared almost all doubts related to my current project which uses the same Architecture

[juhanhossain]

Oh man great work. Please keep the channel running . Take Love

[siim]

I like your explanations of why something is needed. Thanks!

[sajanpv]

Thank you very much am searching for this around more than a month

[azstech]

Thank you so much, you have cleared my alot of confusions, best regards from Pakistan

[Beni]

Very important video this one. Any aspiring developers needs to take notes. Thanks for explaining

[rededu]

Good job sir. I now finally understand the 3 layer structure. And your example is really close to the real world application of the layer. Morepowerand God bless sir

[bahadirerdun]

A very successful education. A very useful tutorial. Looking forward to more of your videos. I hope you reach a high number of followers in a short time. People like you deserve to succeed. Best wishes. Greetings.

[todorg.]

Great explanation. You made everything very clear. Thank you.

[RohanKumar-zpwu]

Great series. Totally beginner friendly.

[anoopkumar]

Thank You so much for your Video It really Helpful For me

[ramyasrinivasan]

Kindly put like working demo means like creating the project and database
So beginners will understand clearly

[mdrifatislam]

Can you add Identity framework to this project to manage multiple user for example admin, user, seller, etc?

[Marc-sdhy]

Thanks, it helpe me a lot.
I have a question, what if we have a relationship (many to many), is there a way to configure automapping between tables and get data?

[mytrolls]

How did the connection string is invoked ?

[chetanadesale]

Thank you.... Here we have to do migration to create table??

[MaheshMahi-zlpj]

May i know how to call store procedure in you are project

[delightful]

You did not use Dapper ? in this project

It seems that this web api can only be tested on Postman, when I run the app, it fails because the interface cannot be displayed on the web browser.