Nestjs Api

This annotation is not used directly and will not be parsed by Swagger. 8 (8 ratings) Course Ratings are calculated from individual students' ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately. nestjs/common and nestjs/core are basically for NestJS dependencies. build a graphql server with. rest - put vs post It has been observed that many people struggle to choose between HTTP PUT vs POST methods when designing a system. Conseguirás crear una sencilla app de backend que se conecta a MySQL y consumir sus datos por REST API en este curso, APÚNTATE AHORA. Nestjs projects have a predefined structure providing best practices for testability, scalability and maintainability. Aprende a crear una REST API usando Nest. Versatile - An adaptable ecosystem that is a fully-fledged backbone for all kinds of server-side applications. That REST API sends a response of Image file URL that accessible to Express. js (el Framework de Nodejs) y Mongodb. js framework for building efficient and scalable server-side applications by @kammysliwiec. "Powerful but super friendly to work with" is the top reason why over 7 developers like NestJS, while over 192 developers mention "Java" as the leading cause for choosing Spring. Half code, half not, 100% lifestyle. NestJs: Modern ways to build APIs with Typescript and NestJs 3. It uses progressive JavaScript, is built with TypeScript and combines elements of OOP (Object Oriented Progamming), FP (Functional Programming), and FRP (Functional Reactive Programming). Links: Project Req. Then we'll need to add a new class that can handle API Gateway requests and a. We will look at some of the quirks and some of the cool stuff that NestJS introduces. I've been doing some prototyping in Nestjs and so far like it. Now, to test the Nestjs REST API, we will use the Postman application. RxJS is a library for reactive programming used for Observables, to make it easier for composing asynchronous or callback-based code. Today, we are happy to announce the release of Nx 7. js that powers the TypeScript metadata feature for API documentation The reflect-metadata package exposes metadata features. A progressive Node. graph-type-orm-nest-example - example for graphtypeorm. js framework powered by TypeScript, to build a secure API. js and the Google Maps API to allow app users to select a user and center on their location, showing the positioning of other users around them. js framework. API summary. Nest is a framework for building efficient, scalable Node. Nov 03, 2019 · NestJS REST API. There’s one thing I don’t understand though, and that is need to create the @Permissions decorator. REST depends on our endpoints being clearly defined and this is usually done using the frontend as a guide, cause obviously we want to provide the exact data the frontend needs. NestJS is a new and promising Node. How to use json-typescript-mapper in nestjs response API? Ask Question Asked 8 months ago. 0 and higher. Models is an npm package that exports the entities definition. 0 terms, cookie authentication is an API key that is sent in. We will start by adding these. How to architecture you JavaScript API using NestJS with a GraphQL API example part 1/2 Skrevet af Mindster og Software Developer hos IT Minds on 25-07-19 11:08 A traditional NodeJS and Express backend is quite simple to certain extent. May 28, 2019 · As you can see when testing your routes, nestJS uses the standard HTTP response codes for REST APIs (201 for POST, 200 for GET etc…) Use the newly created route to save objects and return them To be able to create dogs with this route, you will need a database set up to store the dogs into it. Building a Microservice with NestJS & RethinkDB for real-time communication via API (I) In this era, legacy relational databases it's rarely used in new architectures. 8 (8 ratings) Course Ratings are calculated from individual students' ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately. Udemy Free Discount - NestJs in Practice (with MongoDB), It's like Angular but for the backend! Build a modern REST backend with Typescript and the familiar Angular API NEW, 4. Pros: Typescript. Inspired by Angular and built on top of Express with full TypeScript support, it provides a scalable and maintainable architecture to your applications. 7 (4 ratings), Created by Haider Malik, English [Auto-generated] Preview this course - GET COUPON CODE. nestjs/common and nestjs/core are basically for NestJS dependencies. js web framework built with TypeScript and uses ExpressJS under the hood. I created a multiple Grpc microservices in production and it's works very, very good. Create an API via NestJS. Introduction. I can also build a single api by running ng build api1. The project is the final for my apprenticeship as application engineer. Models is an npm package that exports the entities definition. js framework for building efficient, reliable and scalable server-side. download nestjs graphql example free and unlimited. Time to take home lots of knowledge, insights along with, some free goodies :) Other Event Details :-- This event will be useful for people who have practical hands on experience of working on technologies like NodeJS, ReactJS, NestJS & Automation Testing. We think you should use it, as there are quite a few advantages over SMTP for many use cases, for example, triggering mail directly from your app’s server-side code. We will look at some of the quirks and some of the cool stuff that NestJS introduces. js framework for building efficient and scalable server-side applications by @kammysliwiec". How to use json-typescript-mapper in nestjs response API? Ask Question Asked 8 months ago. I can start a single api by calling ng serve api1. GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more, makes it easier to evolve APIs over time, and enables powerful developer tools. parameters of the WebSocket permessage-deflate extension (see ws module api docs). A simple application demonstrating the basic usage of permissions with NestJS (JWT, Passport, Facebook, Google+, User, Group, Permission) Nest Angular ⭐ 244 NestJS, Angular 6, Server Side Rendering (Angular Universal), GraphQL, JWT (JSON Web Tokens) and Facebook/Twitter/Google Authentication, Mongoose, MongoDB, Webpack, TypeScript. js web framework built with TypeScript and uses ExpressJS under the hood. Furthermore, we will be using the MongooseModule taken from @nestjs/mongoose for database interactions. An introduction to my next project, an app for app ideas. Strong password Regular Expression - NestJS Course - strong-password-regex. The project is the final for my apprenticeship as application engineer. js application, just run this command. To generate a new project, use npx to run the NestJS CLI without installing it globally in your system: npx @nestjs/cli new nest-restaurant-api The npx command is available with npm v5. In the second part we will start creating a GraphQL API in a Schema first approach and how NestJS can help structuring the application using dependency injection and decorators. I’ve only recently taken contact with NestJS. Create a Nest Application similar to how you created the Angular application earlier: ng add @nrwl/nest # Add Node Capabilities to the workspace ng g @nrwl/nest:application api --frontend-project frontend # sets up the proxy configuration so you can access the API in development. We will start by adding these. js systems by taking advantage of NestJS features. js and TypeScript. 0となっていました。 今回は簡単に動かしただけですが、他にも色々変更点を触ってみたいと思います。 Edit request. Each module encapsulates elements of your application that are closely related, keeping your project organized and helping you establish clear topology boundaries. nestjs - a progressive node. All your code in one place. It works as an abstraction over the underlying HTTP server library. These values then can be used during handshake or for special proxies. js template engine for the client side, you will leverage on the awesomeness of Vue. 0 and higher. It uses progressive JavaScript, is built with and fully supports TypeScript (yet still enables developers to code in pure JavaScript) and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming). Js, MongoDB, Mysql, Postgres, and Typescript etc NEW, 3. Aug 14, 2018 · Building a Microservice with NestJS & RethinkDB for real-time communication via API (I) In this era, legacy relational databases it's rarely used in new architectures. You can share code between the backend and the frontend. Pre-requisites. NestJS is the most popular NodeJS by github stars this year. GitHub Gist: star and fork TannerGabriel's gists by creating an account on GitHub. Related resources for REST API Framework. 55 Likes, 3 Comments - IQ Option (@iqoption_life_ru) on Instagram: “Чувствуешь себя с Javascript как рыба в воде? GraphQL API на Typescript/NodeJS/NestJS для тебя не…”. Posts by tag. setGlobalPrefix('/api'); Test the Nestjs RESTful API using the Postman Now, to test the Nestjs RESTful API, we will use the Postman application. Course Ratings are calculated from individual students' ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately. Each middleware is a class implementing NestMiddleware interface. StackShare. En este ejemplo crearemos un CRUD (Create, Read, Update, Delete) para luego utilizarlos con algun framework del frontend. The microservice pattern mostly uses a NoSQL database. js framework for building efficient and scalable server-side applications by @kammysliwiec. There are many ways of configuring HMR depending on the needs of a particular project. react Nestjs, a CQRS & Event Sourcing tutorial. js framework for building efficient and scalable server-side applications, heavily inspired by Angular. NestJs: Modern ways to build APIs with Typescript and NestJs 3. In this tutorial we are going to use NestJS as our backend to interact with our elastic search engine. Set to false to disable. This API provides access to data on the running file system. In this tutorial, you'll get introduced to Nest. NestJS is a bit like Angular - just for Node. Active 8 months ago. As with many other features, webpack's power lies in its customizability. Dec 01, 2019 · A progressive Node. GET) public String printHello(ModelMap model) { model. This app works best with JavaScript enabled. In this tutorial, we are going to build a simple live chat application using NestJS and Ionic/Angular. Common use case : Headless application, cront task, export data, etc. js application that uses a Node. Sep 14, 2018 · An introduction to my next project, an app for app ideas. js Brings TypeScript to Node. Its philosophy revolves around design patterns. SwaggerHub does not have this limitation. As you may know, under the hood, Nest makes use of Express by default. To generate a new project, use npx to run the NestJS CLI without installing it globally in your system: npx @nestjs/cli new nest-restaurant-api The npx command is available with npm v5. - Asynchronous calls and Store using RxJs and Observables. @Controller @RequestMapping("/hello") public class HelloController { @RequestMapping(method = RequestMethod. We provisioned Azure resources and deployed our app on it. In addition, I'll give you some insights about the new CLI commands that have just been introduced, respectively nest build and nest start. It provides some nice abstractions for fast implementations of GraphQL endpoints. a guest Aug 8th, syntax languages / archive / faq / tools / night mode / api / scraping api privacy statement / cookies policy. NestJS It is a framework for building efficient, scalable Node. js as a progressive JavaScript library to quickly render. The microservice pattern mostly uses a NoSQL database. 0 (the Ordina version) 14 Mar 2018. js and Express, Part 1 In this article, we take an introductory look at the Nest. So the next step is to create the api using Nest. File Upload. "By using Express Gateway the team was able to save time, without having to devote engineering time to building this important piece of our tech stack". NestJS JWT Dependencies. Select the project template. In this tutorial, you'll get introduced to Nest. If you use OpenAPI 2 (fka Swagger), visit OpenAPI 2 pages. We can install it using the node package manager(npm) and the following command. Aprende a crear una REST API usando Nest. We will look at some of the quirks and some of the cool stuff that NestJS introduces. 0 and OpenAPI 3. Inspired by Angular and built on top of Express with full TypeScript support, it provides a scalable and maintainable architecture to your applications. En este ejemplo crearemos un CRUD (Create, Read, Update, Delete) para luego u. I'm building an e-commerce api and was thinking of using Nest. To generate a new project, use npx to run the NestJS CLI without installing it globally in your system: npx @nestjs/cli new nest-restaurant-api The npx command is available with npm v5. NestJS Mongoose & GraphQL Setup In order to implement our API requirements, we start by utilizing the @nestjs/graphql module. We provisioned Azure resources and deployed our app on it. To build the API in NodeJS we will use NestJS. The @nestjs packages are a part of NestJS platform, a high-level wrapper around Express. I tried to use NestJS but it's super confusing and strict. Create rest apis and complete backend with nodejs nestjs expressjs oauth by Owaisalam17 Fiverr freelancer will provide Digital services and create rest apis and complete backend with nodejs nestjs expressjs oauth within 16 days. Udemy Free Discount - Node. Throughout the course, the students build a real-world application (REST API) using the NestJS Framework - a framework used to develop modern back-end applications using TypeScript. Creating our NestJS Controller. The boilerplate app created by this tutorial is here. Catatan rilis framework backend Node JS yang bernama Nest JS Swagger 4 https://trilo - Anonymouse kata dalam saluran JavaScript Indonesia Channel di Rabu, 4 Desember 2019 pukul 23. Aug 13, 2019 · NestJS Mongoose & GraphQL Setup In order to implement our API requirements, we start by utilizing the @nestjs/graphql module. Nest is a framework for building efficient, scalable Node. We'll Inject our service and then use our service methods to perform our CRUD functions. Though, RFC 2616 has been very clear in differentiating between the two - yet complex wordings are a source of confusion for many of us. The async config module based on RESTful API, you can real time update your system config. This is a useful feature to minimize the number of resources (TCP connections) and at the same time separate concerns within your application by introducing separation between communication channels. So up next, we're going to build a shiny new frontend app to interact with our api. Assuming that this particular API supports CORS, this would work just fine. Having been deeply submerged in Angular-land for several years now, NestJS looked like it was at least worth a peek – and after a peek, we decided it was a perfect fit and so we adopted it. The requests fail because the API has not been created yet. $ cnpm install @nestjs/jwt SYNC missed versions from official npm registry. js Stream API. The Codefresh API is updated when new features are added in the Codefresh platform so you can expect any new functionality to appear to the API as well. NestJS is a new and promising Node. In this article, you will learn about NestJS, a TypeScript based REST API Framework. It uses modern JavaScript, is built with TypeScript and combines elements of OOP (Object Oriented Progamming), FP (Functional Programming), and FRP (Functional Reactive Programming). Before your product can access private data using the Nest API, it must obtain an access token that grants access to that API. NestJS seems quite opinionated, but in a good way. NestJS is the most popular NodeJS by github stars this year. Give-Away and Freebies. "By using Express Gateway the team was able to save time, without having to devote engineering time to building this important piece of our tech stack". Ensuring this can be facilitated by realtime update of points and visualization of data (for example on a chart) depending on choice or votes. Pat yourself on the back or ask a colleague to do it for you, you've earned it! What's next? We've built a very robust but quite useless system so far. NestJS offers a powerful CLI tool to create and build your application. basics of authentication github developer guide. Now I work with such technologies as ReactJS, SASS, Redux, NestJS, PostgreSQL, MongoDB, REST API, microservice architecture. subscribe( data => this. Django and NestJS are both open source tools. No 'Access-Control-Allow-Origin' header is present on the requested resource—when trying to get data from a REST API 0 CORS: How to set 'Access-Control-Allowed-Origin' request header. 3 which allows developing NestJS applications!. We will look at some of the quirks and some of the cool stuff that NestJS introduces. js by building your first REST API CRUD application with this framework which is built on top of Node. 0 and OpenAPI 3. Get weekly dev news and tutorials. A full list of Query helper functions can be found in the API docs. js and the Google Maps API to allow app users to select a user and center on their location, showing the positioning of other users around them. In the second part we will start creating a GraphQL API in a Schema first approach and how NestJS can help structuring the application using dependency injection and decorators. Run and Test the Node. I'm trying to use type orm entities defined outside of the project. the setup - NestJS & typeORM connected to a PostgreSQL DB in a docker container. Unfortunately, that does not mean that you don't require a server for certain tasks. It uses progressive JavaScript, is built with TypeScript and combines elements of OOP (Object Oriented Progamming), FP (Functional Programming), and FRP (Functional Reactive Programming). js framework powered by TypeScript, to build a secure API. Aug 11, 2019 · Nestjs pipe helps us to validate for example what comes in as objects in our api calls. Catatan rilis framework backend Node JS yang bernama Nest JS Swagger 4 https://trilo - Anonymouse kata dalam saluran JavaScript Indonesia Channel di Rabu, 4 Desember 2019 pukul 23. 0となっていました。 今回は簡単に動かしただけですが、他にも色々変更点を触ってみたいと思います。 Edit request. 8 (268 ratings), Created by Brad Traversy, English [Auto-generated] PREVIEW THIS COURSE - GET COUPON CODE. GraphQL is a query language for your API and a server-side runtime for executing queries by using a type system you define for your data. Udemy Free Discount - NestJs in Practice (with MongoDB), It's like Angular but for the backend! Build a modern REST backend with Typescript and the familiar Angular API NEW, 4. Links: My code - https://github. We got a GraphQL API up and running using NestJS, as well as a Gatsby site which will be the home of GraphCollective. I see plenty of use cases for this and a bigger use case for a community driven open-source, nuts and bolts included implementation that reaches an audience geared. Now a days web applications are being designed with Rest API's and frontend. A Microservices and Serverless API Gateway Built on Express. The agenda for the meetup is as follows :How to build a PWA and sta. 先建立一個nestjs專案api gateway. En este ejemplo crearemos un CRUD (Create, Read, Update, Delete) para luego u. npm i -g @nestjs/cli # it will install the nest command Then, you can create a new project by running a single command. This article will show you how to start an application in less than 30 minutes. 在nestjs中不同microservice間透過Message傳遞資料,但目前還不支援stream-based服務如kafka. That is, I have two projects: models and core-api. 3D printing (2. Lambda With Nest. Throughout the course, the students build a real-world application (REST API) using the NestJS Framework - a framework used to develop modern back-end applications using TypeScript. The boilerplate app created by this tutorial is here. js was structured in a way that the routing mechanism is able to control which controller will be responsible for handling a particular request. Step 1 - Create ASP. You can use same commands to run and test them. Mar 03, 2018 · In this post we are going to secure our NodeJS API’s with customized security token generated by logged user and HTTP actions. This course takes you from zero to published app, taking a very practice-orientated route. The project setup is a continuation of our post on building a restful API with NestJS. Pusher: a Node. Graphql trigger requests using a smart single endpoint unlike in traditional REST API. Local dev server with hot-reload (quicker developer iterations than sam local). NestJs is a framework used to serve our server needs. Diamond can be used to write powerful websites, webapis or as stand-alone as a template parser; *NestJS:** A progressive Node. Learn how to use NestJS, a Node. Active 8 months ago. com - Dan Arias. Throughout the course, the students build a real-world application (REST API) using the NestJS Framework - a framework used to develop modern back-end applications using TypeScript. Net Core Web Api Introduction Over the past few weeks I have been doing some work with ASP. Now create your first API endpoint. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. Before your product can access private data using the Nest API, it must obtain an access token that grants access to that API. NestJS - A progressive Node. To get a kickstart for my side-projects I created a Monorepo boilerplate. Some of the features offered by NestJS are: Extensible - Gives you true flexibility by allowing use of any other libraries thanks to modular architecture. 0となっていました。 今回は簡単に動かしただけですが、他にも色々変更点を触ってみたいと思います。 Edit request. extraHeaders {} Headers that will be passed for each request to the server (via xhr-polling and via websockets). Udemy Free Discount - NestJs in Practice (with MongoDB), It's like Angular but for the backend! Build a modern REST backend with Typescript and the familiar Angular API NEW, 4. SwaggerHub does not have this limitation. Through this workshop, we will build a simple RESTful API with several endpoints exposed. In this article, you will learn about NestJS, a TypeScript based REST API Framework. Sending with the SparkPost API. LoopBack - Build modern API applications that require complex integrations. En este ejemplo crearemos un CRUD (Create, Read, Update, Delete) para luego utilizarlos con algun framework del frontend. Nest (NestJS) is a framework for building efficient, scalable Node. It works as an abstraction over the underlying HTTP server library. nestjs/common and nestjs/core are basically for NestJS dependencies. GraphQL is a query language for your API and a server-side runtime for executing queries by using a type system you define for your data. 20:31 #1 What is GraphQL? | Build a Complete App with GraphQL, Node. Oct 10, 2018 · An Introduction to NestJS for Ionic Developers; Using Providers and HTTP Requests in a NestJS Backend; These tutorials covered setting up a basic Ionic application using NestJS as the backend and making use of services/providers in NestJS to fetch data from an API with an HTTP request. 6 (3 ratings), Created by Angular University, English [Auto-generated] Preview this course - GET COUPON CODE. This command will trigger some questions about the project, such as version and project name, but you can stick with default options: nest new nest-restaurant-api # nest-restaurant-api. Links: My code - https://github. GitHub Gist: star and fork EndyKaufman's gists by creating an account on GitHub. 0 and higher. This is different from REST calls, where you need to poll the Nest API server to get changes. NestJS is the most popular NodeJS by github stars this year. Nonetheless, it is still really flexible and can be changed if needed. It should be used within the ApiResponses. js framework powered by TypeScript, to build a secure API. NestJS is a cool framework for write microservices, the new version 5. Jan 30, 2019 · In this tutorial we are going to use NestJS as our backend to interact with our elastic search engine. The async config module based on RESTful API, you can real time update your system config. js server-side applications. REST depends on our endpoints being clearly defined and this is usually done using the frontend as a guide, cause obviously we want to provide the exact data the frontend needs. The next figure represents the structure of the module we're going to build. Intro NestJS is a relatively new framework in the Node world. Head over to Pusher and s ign up for a free account. Join Teletype. RxJS is a library for reactive programming used for Observables, to make it easier for composing asynchronous or callback-based code. Regarding the why: Within my current project we created a nestJs based REST API which is enabled to be used as serverless function running in AWS. This is my entity and my service. "Powerful but super friendly to work with" is the top reason why over 7 developers like NestJS, while over 192 developers mention "Java" as the leading cause for choosing Spring. Read more 3 Stages of API testing. Java Project Tutorial - Make Login and Register Form Step by Step Using NetBeans And MySQL Database - Duration: 3:43:32. 07:10 pm - API con Nestjs. We'll build a quotes app throughout this course, we'll see how we can use Angular Material library, how to fetch and handle user input, how to store data and much more!. js 版的 spring,构建微服务应用. js web framework built with TypeScript and uses ExpressJS under the hood. If you choose to, you can also decorate your API for Swagger. com - Dan Arias. It uses progressive JavaScript, is built with TypeScript and combines elements of OOP (Object Oriented Progamming), FP (Functional Programming), and FRP (Functional Reactive Programming). The microservice pattern mostly uses a NoSQL database. GET) public String printHello(ModelMap model) { model. It also provides the implementation to support communication with Hyperledger Fabric peers for Smart Contracts written using the fabric-contract-api together with the fabric-chaincode-node cli to launch Chaincode or Smart Contracts. Creating our NestJS Controller. To get a kickstart for my side-projects I created a Monorepo boilerplate. js and the Google Maps API to allow app users to select a user and center on their location, showing the positioning of other users around them. forceNode: false. To generate a new project, use npx to run the NestJS CLI without installing it globally in your system: npx @nestjs/cli new nest-restaurant-api The npx command is available with npm v5. So in this tutorial you will learn how to apply pipes to see if the object that will be posted to the api is. How to use json-typescript-mapper in nestjs response API? Ask Question Asked 8 months ago. Now we want to dockerize the apis to be able to deploy them to our kubernetes. setGlobalPrefix('/api'); Test the Nestjs REST API using the Postman. In OpenAPI 3. $ cnpm install @nestjs/jwt SYNC missed versions from official npm registry. NestJS is a framework for building efficient, scalable Node. Conseguirás crear una sencilla app de backend que se conecta a MySQL y consumir sus datos por REST API en este curso, APÚNTATE AHORA. GitHub Gist: star and fork EndyKaufman's gists by creating an account on GitHub. Today I’d like to discuss NestJS. js framework powered by TypeScript, to build a secure API. However, should regular users be able to delete menu items from the data store? Not at all. js back-end development framework built upon Express, leveraging the power of TypeScript. It also provides the implementation to support communication with Hyperledger Fabric peers for Smart Contracts written using the fabric-contract-api together with the fabric-chaincode-node cli to launch Chaincode or Smart Contracts. Right click the Solution Explorer and select Add -> New Project->Class Librabry. There are several mainstream frameworks like Angular, React, Vue, that are used for UI. Aug 11, 2019 · While it is a relatively simple process to set up a REST API in NestJS, we still are left with the limitations of a REST API. Ways to use the Codefresh API. This article explains how to create a REST API using JavaScript ES6 and fort. This boiler plate code provides an end to end working application with basic login and user management features. Next, open the Postman application then make a GET request like below with the results. We won't be doing this, though. Oct 10, 2018 · An Introduction to NestJS for Ionic Developers; Using Providers and HTTP Requests in a NestJS Backend; These tutorials covered setting up a basic Ionic application using NestJS as the backend and making use of services/providers in NestJS to fetch data from an API with an HTTP request. Write API's with this framework is so fast. To me this NodeJS framework seems the most mature. GitHub Gist: star and fork TannerGabriel's gists by creating an account on GitHub. Sep 26, 2018 · Assuming that this particular API supports CORS, this would work just fine. Inspired by Angular and built on top of Express with full TypeScript support, it provides a scalable and maintainable architecture to your applications. By default, each Serverless project generates a new API Gateway. js that powers the TypeScript metadata feature for API documentation The reflect-metadata package exposes metadata features. So basically, instead of building Nest. Lambda With Nest. Any time there is a state change, the Nest API sends the event using the open connection, so you can receive the new state. Build APIs in NestJS When we are building APIs in NestJS, we primarily work in 3 different types of files. Add your mongodb uri to the "config/keys.