Build Complete REST API in NestJs #1 - with TypeScript & MongoDB

Final Code:
github.com/ghu...
Complete In-Depth NestJs UDEMY Courses:
www.udemy.com/...
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In this video, we will learn how we can make a complete rest API in NestJS using typescript and MongoDB. We will take a look at the NestJs folder structure and learn about what are modules controllers and services in NestJS.
We will also learn about schemas and also what are data transfer objects or dto's. We will create a library API in which we will create book module and perform all CRUD operations in that.
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[@AhmedHusseinMohamedAly]

Great tutorial and you are a super intelligent developer.

[@abdulwaris5496]

Amazing content and your English is helpful for non-natives!!

[@mr_ahmad_70]

Thank You So Much Sir I was very scared of OOPS bcz my background was of express js and functional only not the classes, thanks to your explanation, now I can do a crud. It would be great if you make a video on Authentication as well

[@codingwithabbas]

Already made vide on that:
th-cam.com/video/ED8uWgE-KeY/w-d-xo.html

[@scottm.86]

Great video, very clear instructions and explanation. Thank you!

[@kukuster]

NOTE: at minute 9 you will not actually have a successful connection to a database (called "library-next-api" in this case) like on the video, unless you already created it beforehand. But! The database will be created automatically later when you insert a first record

[@aryanddaga]

how do I do that?

[@kukuster]

​@@aryanddaga you can start mongoDB CLI by executing `mongo` in the terminal, then write `use ` inside. This will create an empty db. But the point of what I wrote is that you can ignore that error, because in the following steps you'll execute something that inserts the first record successfully and it'll automatically create the database for you

[@rehan5383]

You are my hero. beautifully explained.

[@pabloc1519]

Thank you for the very straightforward information!!!!!

[@ChinelsyAgudike]

Lovely, love your data structure, looking forward to more. I have finally found what i will use in learning Nest js with mongodb, best tutorial so far. keep it up

[@faustozambrano4901]

Thanks for the tutorial, buddy

[@kingb772]

Really helped, Thank You!

[@awaraamin6850]

It is an informative video, thank you.

[@brortiz]

Hey Abbas, thanks a lot for the tutorial. I just got one little issue, on the PUT request I don't get any response in Postman, the other ones work great (findAll, findById, createBook, etc). I made sure I got the correct ID and also even tested with your own cloned version. Anyone else with the same problem?

[@codingwithabbas]

You are getting blank response. Is document in DB updated?

[@mohammadrehan-zg2bg]

Can I continue using this format for a large project?

[@Khalil.WebDev]

Hello Abbas,
I like the way you teach, explain and code in practice. I tried to Enroll to your NestJS course on Udemy but it seems that your course is not included in the Udemy Business content collections.

[@codingwithabbas]

Udemy Business collections is managed by Udemy, this course in not yet present in Udemy for Business, I have 2 other Node.js courses in this collection.

[@jayb2128]

Really like this, but when listening through headphones that subscribe sound that happens every so often is very frustrating.

[@codingwithabbas]

Thanks for your feedback. I am not adding that in new videos.

[@OmarAlJaberProfile]

how we can configure multi tenant dynamicly for different db

[@revxl722]

Great video

[@Wardret]

very good content, GJ

[@lucasdamasceno7068]

Thanks bro. 🎉

[@jhk1869]

you are master!

[@ashishkumari-yg4gn]

Sir,
After entering incorrect id , I am getting "Internal Server Error" .
But I should not get anything as per this video at 24:38
Even after throwing NotFoundException , I still getting the same "Internal Server Error"

[@codingwithabbas]

Have you checked the console, there should be some error.

[@ashishkumari-yg4gn]

@@codingwithabbas CastError: Cast to ObjectId failed for value "63fde815b676376155a4a63o" (type string) at path "_id" for model "Novel"
I'm getting this error sir

[@spizer98]

@@ashishkumari-yg4gn i also get the error so i changed "id" to "_id" it solve the error

[@ashishkumari-yg4gn]

@@spizer98 Thank you

[@sahilgangwani3847]

where exactly did you change the id , on all or in PARAM or where?@@spizer98

[@mustafacavuslu3856]

Can we call this program library automation?

[@phantazzor]

what is dto ? why you need it ?

[@Engineeeer_1]

Great

[@momoh7888]

thank you

[@codingwithabbas]

You're welcome

[@irfanopc2466]

super

[@josemanuico5613]

sql had a grafic ui for the db. Has mongodb the same funcionality?

[@MrZnog]

I think you're looking for compass?

[@yadavkishan3778]

please create rest api nest js ecommer api and react js

[@adeelirshad228]

Brilliant video. But please speak a little slow I've to watch this video at 0.5X🤣

[@arpanadhikary2533]

please provide a coupon code for the node js express course

[@codingwithabbas]

Will provide when available.

[@lbarria11]

@@codingwithabbashello how are you any coupon for udemy?

[@g-neto6581]

It doesn't matter what I try, the mongoose connection doesn't work at all

[@JamieGomez-cj6hn]

same here, did you manage to solve it?

[@g-neto6581]

@@JamieGomez-cj6hn unfortunately, I gave up on this project and started a different one to learn rabbitmq with nestjs

[@franciscooteiza]

Ok? .... Ok! .... Ok

[@paulj3580]

How do you setup your MongoDB bro?

[@pelumiabdulraheem3705]

have you figured it out?

[@paulj3580]

@@pelumiabdulraheem3705 yes bro

[@paulj3580]

@@pelumiabdulraheem3705 instead of using .env I used to put the connection string in the app.module.ts

[@faizul_official]

Amazong tutorial

[@ВиталийБрынза-н9ъ]

Hello. I completely copied the code but for 17.20pm.
In the postman, I have to get an empty array, and I have an error. I will be glad if you tell you how to solve this problem.
[Nest] 9008 - 07.07.2023, 13:46:52 ERROR [ExceptionsHandler] command find requires authentication
MongoServerError: command find requires authentication
at Connection.onMessage (D:\NestApiBook
ode_modules\mongodb\src\cmap\connection.ts:413:18)
at MessageStream. (D:\NestApiBook
ode_modules\mongodb\src\cmap\connection.ts:243:56)
at MessageStream.emit (node:events:513:28)
at processIncomingData (D:\NestApiBook
ode_modules\mongodb\src\cmap\message_stream.ts:187:12)
at MessageStream._write (D:\NestApiBook
ode_modules\mongodb\src\cmap\message_stream.ts:68:5)
at writeOrBuffer (node:internal/streams/writable:392:12)
at _write (node:internal/streams/writable:333:10)
at MessageStream.Writable.write (node:internal/streams/writable:337:10)
at Socket.ondata (node:internal/streams/readable:766:22)
at Socket.emit (node:events:513:28)

[@marcuuscardoso]

did you manage to solve it? as

[@tannedstone3736]

28:29

[@irfanopc2466]

are u indian?

[@user-my2zg9mr6p]

Thank you for the excellent content.
It might be beneficial to add the following code to the findById, updateById, and deleteById methods in src/book/book.service.ts:
```
if (!mongoose.isValidObjectId(id)) {
throw new BadRequestException('Invalid ID');
}
```