Nest.js with MongoDB - Complete Example

Connect your NestJS app to a MongoDB server and learn how to create, read, update and delete (CRUD) data.
Join the full "MongoDB - The Complete Developer's Guide" course: acad.link/mongodb
Exclusive discount also available for my "Node.js - The Complete Guide" course: acad.link/nodejs
Check out all our other courses: academind.com/...
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Watch the first part: academind.com/...
Starting Code: github.com/aca...
Finished Code: github.com/aca...
MongoDB Introduction: academind.com/...
SQL vs NoSQL: academind.com/...
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[@kerryd2060]

You're my favorite instructor on Udemy. I'm in most of your Udemy courses including MongoDB & NodeJS. You make the subjects easy to understand. Thank you!!

[@academind]

Thanks for this wonderful feedback and your great support Kerry!

[@daltonjameson1506]

I know Im pretty randomly asking but do anybody know a good website to watch new series online ?

[@korbinfox2878]

@Dalton Jameson Try flixzone. You can find it by googling :)

[@michaelpeltz]

Excellent as always Max. Not a waisted syllable. Dilligent preparation. Your commitment to researching and using best practices on every level is greatly appreciated. People: if you haven't taken any of Max's Udemy courses I highly recommend them. There are always sales and Max often includes a discount link in these free vids. I don't think I've paid more than $12.

[@przemysawwronski5738]

NestJs course would be great

[@academind]

Not planned in the near future, sorry :/

[@adriannlara]

@@academind U_U

[@un256ix]

using CQRS pattern and even better if in nx workspace together with angular :D

[@NorseJedi]

Just for anyone else running into this problem with newer versions of mongoose, the Product interface in product.model.ts has to extend the Document interface from mongoose. So instead of: export interface Product You'll need to put: export interface Product extends mongoose.Document

[@TheLukrify]

U saved me of lot of google searching. BIG THANKS!

[@pervyshrimp2860]

thanks a lot man legit helped

[@LattE0825]

Damn i've been scrambling here for hours, wondering what I have missed on the tutorial. Thank you so much!

[@sahibsingh1221]

Got the same issue, resolved. Big Thanks.

[@lucaszanek6204]

Thanks!!!!!

[@venkatakameshwarpeddada1558]

Thanks, both the videos w.r.t NestJs were quite useful. It helped me a lot to know about NestJs framework and become hands on very easily.

[@disapamok_]

Great one! I always find something new while watching your tutorials, And the way you present is precious! Thanks Max.

[@ITEducationPakistan]

Max you are my best instructor forever.. Your research and teaching efforts for everyone both are begginer or professional and specifically your interaction with student joyful to learn something new with interesting and your theoretical logic for explanations make me easier to understand.

[@academind]

Thank you so much!

[@ПавелКоломыткин]

Hello, Max. Thank you for your work! It's a great stuff and useful much. Once you've asked about what would we like you make a course about? Well, I'm sure that your audience is mostly full stack developers. And as we all have a desire to grow we'd like to be aware of all aspects of development and delivery features to the customers, well at least most of them. I think devops is very interesting topic we all are interested in, especially Kubernetes. It would be great if you make a complete course about it. One more thanks for your videos.

[@joerivde]

So you're from München. Excellent tutorial, as always. Much love from your Belgian neighbours (:

[@jediampm]

Thanks Max, as always great video. Somethings to point out: - as you know, when you choose to work promises with async/wait sintaxe, you should warp inside try/catch. - in methods like update / insert or delete, you should return at least the status code of 201. - why not to use TypeOrm ? And to finalize, as soon as possible bring a video abou loopback 4. Thanks ;)

[@dakshsagar2839]

TypeORM is for SQL databases .

[@miago4155]

all those things nestjs does for you. and I think thats beautiful. @daksh sagar You can use typeOrm with mongodb. But you are right that the advantages of typeorm can be better exploited with sql databases.

[@jediampm]

@@dakshsagar2839 TypeOrm, it is not only to SQL type DB, also it works with No SQL DB. links: docs.nestjs.com/techniques/database typeorm.io/#/mongodb

[@johnschmidt874]

Thanks Max! You always post top-notch quality, both on video and the content.

[@wassimmehanna4402]

This 5 stars tutorial needs a continuity with one to many relationships using mongoose. I would glady pay for this.

[@kingdarboja7903]

Awesome tutorial, glad you made this one to show us how to deal with non-sql engines. Pretty much what developers needed besides the great documentation at NestJS page. However, I know there is other way of using MongoDB on our NestJS project, and that is TypeOrm. Would be great if you can show us the same approach in another tutorial. CHEERS!

[@aram5642]

Fantastic primer, Maximilian! Thanks a lot! I learned a lot about mongoose. Do you think you could make yet another video about working with relations? Say, products assigned to Categories. Would you make categories a separate module in Nest app?

[@aminazgol3918]

Excellent tutorial sir, I really like your coding practices. Clean and professional

[@riverofcustard3233]

Thank you for this minicourse. NestJS is a super cool addition for a project.

[@hbela1000]

Thanks a lot, definitely the best intro with github source.Would be great to have a NestJS Complete Guide too, including maybea little side note on NestJS/Firebase too.

[@academind]

Thank you, got no plans regarding a Complete Guide on NestJS at the moment though.

[@therhythmatic]

Nice video, much appreciation to you Max for sharing with us! You always level us up!

[@academind]

Thank you :)

[@arnonaf]

There is a critical gap here that I don't understand how it is not shown/happening in your video - the Product class actually has to be an interface that extends "mongoose.Documet", otherwise you get a red error in the service ctor underlining because "Type 'Product' does not satisfy the constraint 'Document'". Why it doesn’t it reproduce here?

[@ferditiger4665]

44:25 There is no "result.n" propertiy for delete operation anymore. It returns deletedCount property. So if case should be like this : if(result.deletedCount ===0)

[@123ajayshah]

Once again thanks Max for this helpful tutorial.. well, I have some thoughts... I feel uncomfortable with some approaches used here, 1. While returning single/multiple products, each time,we have to transform Product document to normal product object - Code repetition 2. For mongoose.Schema (for validations ect..) and mongoose.Document (for mongoose database related operations), I have to maintain two different sets of product properties - This also seems a repetition of code - In an actual system, there may be so many entities exists. Do we need to maintain minimum two copies + return version of product object for every entity which will be used in CRUD operations ? I am new to mongodb + mongoose world, so I may be wrong.. So I request you to clear my doubts... But overall.. Great help to community... and.... I am your student at Udemy -- just FYI :)

[@sttpt]

Great questions... These are some of the pain points that I felt as well...Max Sir, can we resolve these?

[@ZeWitchKid]

waiting to buy that nest js full course

[@academind]

No plans to create such a course in the near future, sorry.

[@reddyakanksha98]

Thanks for the clean & clear tutorial, helps a lot..🙏

[@VinniiMiranda]

Make a course for NestJs, pleaseeeeeee;

[@academind]

Sorry, no plans on that :/

[@janisleicis263]

@@academind why not?

[@brahimwebmaster]

Thank you Max, this is what I'm looking for 👍👍👍👍

[@anishkodishala8210]

Thanks Max. Amazing tutorial. It would be great if you can add another video on using Swagger and JEST to test the NEST JS application.

[@BDominikGT]

Absolutely amazing tutorial, like always. Excelent job. Thank YOU.

[@HaiderAli-co9jl]

Please make a bonus deployment video Max. Maybe on Heroku, that will be great. Thanks for all these great tutorials

[@muhammadarslan9939]

Thank you. great series learned a lot.

[@taniusahincu3119]

Great Tutorial Max. Now you must add NestJs + MongoDB + Socket.IO and will be the nice tut. again! Thx!

[@sttpt]

Thanks Max for this great session. I have one question - If mongoose provides id of the product as product.id (without underscore), why doesn't it return the product with id instead of _id? This would have saved the transform/map?

[@sumitvishwakarma452]

Hi Max, This looks so cool...What is the future of nest.js if someone planning to learn. I have already expertise in Angular + .net. I am thinking to learn Node.js(MEAN Stack).

[@sameeravhad6266]

Hi, I have one doubt. How mongodb created collection (table Name) name "Products" ? Where are we defining in code base ?

[@kiranjeetkaur4955]

Inside product.module model it is defined

[@ishraq95]

Today I knew about netjs..I think its great for Angular Dev like me..

[@vkmucheti]

thank you max a great beginning to nest with mongoose but is it possible to connect to a angular application to post get update delete data, mean need a video on angular + nest with mongoose

[@donikastoqnova1734]

Again amazing course.

[@binodnepali]

I was hoping this video. Thank you Max

[@binodnepali]

Hi Max, Can you answer the below questions? When we perform CRUD operation on the database, I am a bit confused about managing the data in the application. Currently, What I do is, when I fetched a list of data from the database I stored in the memory in the list and when I want to add new data, first I saved the data in the database if the saving was successful then add to my memory list (which is the same list that I have when I have fetched the data) same follows for updating and deleting a data. Is this a correct way to do? or I need to do another way around which is fetching (querying the database) the data from the database every time when I add, update and delete a data. Which is one is an optimal solution?

[@juliecherner9085]

Excellent, thank you for amazing work and clear explanations!

[@karnpratapsingh8860]

were you able to connect with the cloudmongodb cluster?

[@thedupy124]

Incredible video, thanks for all !

[@Booshwong]

i don't understand, I keep getting a connection error when trying to connect to mongodb atlas, with mongoosemodule. It says the uri is undefined, however I am providing the string directly and not with a .env

[@babakdarafarin9065]

Thank you very much. Your video helped me a lot. Best wishes

[@pedromanuelcamargomendez6520]

Excellent Contribution. Thank you.

[@getdevotional]

I'm not sure how the 'products' collection got created in Mongo DB. Database name was mentioned in the config but not collection name

[@IndianRailwayLovers]

Got this issue in product service file on constructor line. "Type 'Product' does not satisfy the constraint 'Document'." Please help me out @Academind

[@kakhabervk9405]

This is fine contintue of previous tutorial, only thing is that, I tried to keep old version as possible with node version 10 LTS, mongoose@5 and @nestjs/mongoose@6 and @types/mongoose, but after update product script gets error . In my situaton I removed @types/mongoose and updated to mongoose@5.13.14 and @nestjs/mongoose@7.2.4.

[@ktn9]

Delete function now changed to: result.deletedCount === 0

[@mustaneerhaider515]

It would be if you release where you build an authentication api with jwt tokens using nestjs and mongogdb. Thanks for this and the previous videos. Your explanations are always awesome and easy. Still waiting for your nestjs course on udemy as i already have done your nodejs course from udemy in the past.

[@eddzmaciel]

THANK YOU VERY MUCH FOR YOUR KNOWLEDGE

[@shahmirjadoon1322]

Hopefully you will have NestJs course on udemy soon

[@academind]

No, I'm sorry.

[@kirillbaryba746]

awesome, thanks more NestJS!

[@skyzane2735]

@academind Ssems like there is a newer implementation of nestjs and mongoose. Like using decorators such as @Prop. Do you have that video? Please let us know.

[@KamranTanveer-lm5et]

that was very helpful... thank you

[@sachinprabhuk6241]

could you do a full series on nestjs

[@academind]

Not right now, sorry.

[@dfelixpt]

Excelent. Not much videos about NestJS where people show a little concern about response sanitization. Unfortunatly not much information about this subject. NestJS documentation about ClassSerializerInterceptor is poor and seems complex. Most tutorials only focus dto's for requests. And not much informations about best practices for responses.

[@HuyKon]

How can I move all configs (database, host, port, ..) to a env file?

[@srinaths2361]

Hi..Great course..i had a small doubt.. How to implement cucstom id using mongodb in nestjs?

[@omartarek9032]

Thanks max, I LOVE NestJS. for me it makes everything easier and more organized :D Can you please add a course about passport.js to use in our apps? :D

[@64-bitMicro]

The end could be updated a bit to improve the delete; Later mongoose packages appear to have changed the response type of deleted queries. Something like the following may be better: ```TS async deleteProduct(productId: string) { try { const result = await this.productModel.deleteOne({ _id: productId }).exec(); if (result.deletedCount === 0) { throw new NotFoundException('Could not find product.'); } } catch (error) { throw new NotFoundException('Could not find product.'); } } ```

[@kardashevr]

still hoping for a full nest course. fingers crossed

[@academind]

Sorry, but not plans for such a course in the near future :)

[@pinyin1]

@@academind please plan for it add angular 8 for the view

[@Black1Sabbath100]

Thanks a lot max!! your a hero!

[@jo0o0oke3e3er]

Hey Max, how are you doing? are you offering or do you have any plan about a nestjs course? thx

[@Heiko_Kanzler]

If you're starting from ground, you end up in lot's of issues with VSCode, TypeScript and thus. Return types missing, not compiling without return types... Had similar challenges with the first part of the course, but that was easier to fix, but this is harder if you're new to the topic :-( Perhaps because of changes in nest.js and mongoose? I downloaded the sources and started with them now, and they seem to work, however except the dependencies, my code is identical (up to minute 18:40).

[@basilirzhak4276]

Thanks mr. MAX!

[@julleu8847]

At 36:50 I ran into a Problem. In the Project im working on we use shared entities and the frontend guys don't want to deal with mongoose imports obviously. I worked around this by simply removing the returntype from the findProductById-Method. No @types/mongoose needed.

[@js-ny2ru]

Can you add version with graphql? That would be great. Thx!

[@rafa_hd]

Hi Max. What about Adonis? Have you used or tried? Thanks.

[@kyriakosmichael2191]

I'm sorry, can I ask? Is that any kind of typeorm? Can i use Mongo with TypeORM? Love this Video!

[@cis84muz]

Nest.js is so obscure to me; all these classes, decorators. Alright, it helps, forces to structure the code and probably I will pick it to my next project. But I feel it is AngularJS of Node.js frameworks - it is great now, but I hope it will pass to history and we will get more understandable, more React-like solution. Anyway thx for great movie!:)

[@cis84muz]

I take back what I wrote! I worked in Nest last three days and it is awesome! These decorators still scares me, but easiness of creating new routes, security provided by TS and the fact it is all set up upfront - that it really nice to work with :)

[@faizahmadfaiz2127]

I am getting this error- ERROR [MongooseModule] Unable to connect to the database. How to resolve this?

[@faizahmadfaiz2127]

I have added my ip address to the list. Also I tried access from everywhere. It's not working. What I am missing?

[@pradeepkumar-pi4lj]

Do you have any vedio on nestjs mongodb user authentication using jwt token

[@ishanbhawantha]

Thank you verymuch!!

[@Ollinho12]

You maniac, giving this a watch now.

[@JuanTeDDi]

awesome, thank you so much!

[@alexanderommm]

Why do you return Promise in service and then you use in controller async func to get Promise again. You can just return promise. Nest will resolve it.

[@radomirsubzero]

I didn't catch where to specify collection we wish to work on, just a database name. Did I missed something?

[@moca9270]

Radomir Tacić unutar forFeature kad proslijedis name i schema , takodje mozes da proslijedis collection

[@radomirsubzero]

@@moca9270 Nađoh i sam kada sam testirao u svom kodu, ali hvala u svakom slučaju 😉

[@moca9270]

Radomir Tacić ako uspijes naci kako da se spojis na 2 mongo baze javi mi molim te

[@TheFayt11]

Mr max ! Could you explain about Angular error "ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked" ? I already read the article but i still dont quite understand. Please help if you have some free time ! Thank you so much mr max ! it means a lot ^ ^

[@williamjxj]

the implementation seems complex, and kind of duplicated. Suppose there are +100 related collections in several dbs, how to control and associate with in nestjs?

[@vceolin3908]

AWESOME VIDEO

[@dhiliph98]

Thank You Max!!

[@SolomonKahsai]

how to deploy nest.js app on cloud functions: Hi Max, can you please make a video on that, what is available out there is not clear. As always, thank you for your work!!!!

[@samywat]

thanks for this!

[@noskap]

This is awesome!

[@tranquillityEnthusiast]

im not able to connect to mongodb database...

[@fallen0ne7]

thanks a lot dude!

[@Ravivit9]

Hi, Good work and great example. During the mongodb integration I am getting the following error in products.service.ts [Nest] 50350 - 08/07/2020, 5:28:08 PM [ExceptionHandler] Nest can't resolve dependencies of the ProductsService (?). Please make sure that the argument ProductModel at index [0] is available in the AppModule context. Potential solutions: - If ProductModel is a provider, is it part of the current AppModule? - If ProductModel is exported from a separate @Module, is that module imported within AppModule? @Module({ imports: [ /* the Module containing ProductModel */ ] })

[@bleir82]

did you find the solution? I have the same.... :(

[@bleir82]

ok found solution :) I had to remove ProductsController and ProductsService from the dependencies in app.module.ts @Module({ imports: [ ProductsModule, MongooseModule.forRoot( 'mongodb+srv://username:[e-mail]/nestjs-demo?retryWrites=true&w=majority', ), ], controllers: [AppController], providers: [AppService], })

[@sayeednazir7973]

Sir please provide the source code (Git repository)?

[@jonas-re4sk]

nestjs is the missing piece we were waiting for that could finally standarize most of our daily tasks putting components together anybody knows if is possible to enable SSR like nextjs?

[@abhishekbandekar7884]

Thank You Sir

[@rohitkumawat8154]

sir can u share this code

[@moca9270]

Does anyone have a solution for connection to mutiple Databases in NestJS using mongoose?

[@miago4155]

Just use TypeORM.

[@digender]

I have a suggestion: Rather than formatting the result again and again we could just make a format function to do that as below: ```getFormatedProduct(PROD) { return { id: PROD._id, title: PROD.title, desc: PROD.description, price: PROD.price }; }```

[@cristiancontreras2924]

Excelente!!!

[@ahmedsafan86]

Thanks

[@tipsharp6494]

Again amazing 10x max

[@tranquillityEnthusiast]

Sir use firestore for database and host the microservice in the firebase cloud functions...hope you'll do that

[@ВалентинаСахарова-ь3б]

amazing

[@pinyin1]

please add view framework it like angular 8

[@robertsmith512]

HAIL! PYTHON !

[@pinyin1]

god bless you i have been waiting for this please do shopping cart with it with authentication

[@danishmanzoor795]

Sir I have a question for you....... My website only open in chrome browser ?Is it possible ?what can i do for this? Please help me sir?