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Hi everyone!

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I make the video to summarize the "DTO" concept because if this is the first time you see the DTO

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pattern

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You will confuse a lot, I know.

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So for that reason I will build this video, right?

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And for now let's understand.

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The client and server.

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And client in this case will be the "postman", right?.

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And in the postman I will send the request into the server.

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I will send using the "DTO".

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Okay "DTO".

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I send "DTO" and it will send to the server.

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Right?

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It sends the DTO into the server.

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And with this information with this "DTO" from the client right now, the server will take the information

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and go to the database and process it and create for me the entity.

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This is a real entity into the database, right?

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And from this entity right here, the server will convert it inside the "DTO" also, this's "DTO Response"

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And it will send into the client.

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That's what happened right now, you can see.

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If I remove everything go to the post controller right here.

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We take the create post dto from the client right.

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And we pass it into the server or the service.

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And inside the service we will process that.

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We already create the entity, right?

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The post right here is the real.

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The real entity.

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And from the real entity right here, we convert it back the DTO.

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And from the DTO we will respond it to client.

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That's the what happend right now, and I hope you understand more and more about "DTO" pattern

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right here.

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It's very useful because we already removed, we already reduced the amount of data.

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Right.

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And we also do the validation directly inside the DTO.

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And we already keep this schema simple as it can.

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Actually we can easily use the the some validation rule directly inside the schema.

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But we not do that right.

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So for that reason make sure we keep the schema.

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Simple as it can, and move on validation logic into the createDTO.

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That's the whole point of understand "DTO"

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And that's what happened right now.

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So I hope you understand this video.

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If not, don't worry about that.

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We will progress more and more.

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If you continue with this course.

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I will see you in the next one.