Enterprise Nest.js: Build an Abstract MongoDB Repository

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[@mguay]

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[@hassan-qp4hn]

Sweet video, very informative and slick use abstract class.
Could be cool to do a video on multi-tenant setup in nestjs for example when different tenants have different db connections

[@vk-fb4ox]

this whole series is gold. I has struggling to understand how to build apps like this. Thank you.

[@amitmondal7427]

I like the abstract way.
Thank you.

[@williamx0]

Thanks so much for this and all your other videos. You're really well versed in nestjs and appreciate you sharing your knowledge!

[@mguay]

Thank you very much!

[@alihamoud6863]

this video and all your videos are helpful, all love💓

[@ayoubguismi4558]

Thank you very much i really like how you explain

[@momentgi]

Perfecto Mister

[@mkroven]

Thank you. I need to figure out Postgres way :)

[@moosegoose1282]

wowzers

[@bbedyukh]

Thank you again. You're a god!

[@isurumaldeniya9536]

Thanks a lot

[@isurumaldeniya9536]

Thanks, great video. Just want to mention you may get some error in the projection part in find and findOne
"With the exception of the _id field, you cannot combine inclusion and exclusion statements in projection documents." so if you put __v: 0 and try to project other fields using {userId:1, email:1}
it will give an error since this does not allow in MongoDB. so in case if this happens you can remove the __v:0 part in the projection.

[@mguay]

Thank you for the heads up!

[@hoseinjahandideh2104]

can we implement this kind of abtraction with ORMs like prisma ?
i tried to do it with prisma but the typing and the filterQuery doesnt exist as type in prisma

[@odev6764]

thanks this helps a lot on improve my project. one question, how could I do the same with a service ? supose I have multiple service that wait for a event emitter "get.products" and all of them will execute another class that will return an array of products
how can I do this kind of abstraction?

[@aleksandrgurnak3911]

thank you so much man!

[@Hamdiby]

as far as I know, repositories should be database agnostic, meaning it does not matter why database you are using, but I see that you extends Document from mongoose ?
can you please elaborate ?

[@sashatsatryan5752]

When I try new this.entityModel(createEntityData) typescript warns that Argument of type 'unknown' is not assignable to parameter of type 'AnyKeys & AnyObject'

[@ayrtoncravero]

Thank you very much!!!!

[@mohammadrezabehzadfar8122]

thank you so much for this guide i have small question can i ask in why you use exec() in abstract class but not use it before on UserRepository class

[@vighnesh-k]

Thanks for the video Michael!!
Could somebody please elaborate why unknown is used as a type for createEntityData and UpdateQuery? The object we would pass should always contain properties which are present in the Model right? So why unknown?

[@paneurhythmie]

Hi Michael, thank you for your videos. It is possible to implement Pagination on the abstact repository and how can I do that?

[@ikan5677]

is there any default method / prototype that already created by mongoose so we can just use them with extends, like using typeorm we can just implements repository pattern with extends repository, and import { Repository } from typeorm

[@therealwalim]

I'm wondering how could it look using aggregations

[@xenon4602]

what if you want to implement other methods as well, like findByName etc

[@xenon4602]

@__main__ oops

[@dantedimon]

Hi) I have a question, can we create the abstract class for controllers and extend them, for example, CrudController? And pass somehow dto

[@mguay]

Yeah absolutely! Maybe I'll do a video showing this.

[@sergiuwaxmann]

@@mguay I'm super interested in your approach on this 👀🚀

[@volodymyrkulyk9373]

Great vid, but it's not Repository in your specific case, it's DAO.

[@mguay]

Get my highly-rated Udemy courses at a discount here: michaelguay.dev/udemy/

[@noname13345]

Hi! Great tutorial, thankyou very much. I wanted to ask how do you manage situations when you have multiple schemas in their respective modules and lets say two of them are related with a "ref", and you to validate that there exists a record in the ref schema before you create a record in other schema?
Currently I do it by importing the ref schema in my second module, then import it in my service and have a check before the create function. Is it the right thing to do?