JSON stands for JavaScript Object Notation. MongoDB supports special BSON data types, which in the MongoDB shell are represented by ObjectId, NumberDecimal and BinData, for example. 4, MongoDB 4. After reading this tutorial, you will be able to install and develop Web base applications using MongoDB. MongoDB::Examples - Some examples of MongoDB syntax. Then we add the BasicDBList to the parent BasicDBObject. Digitizing content and processes is a 20- or even 30-year-old story. I used both NoSQL (MongoDb) and Relational Database (MySQL). database=car_dealer spring. This sample demonstrates the usage of MongoDB as a data source in WSO2 DSS. The use Command. I hope you are already aware of collections are. It depends on libbson to create and parse BSON data. MongoDB Java Example Even though we can work on any valid JSON document in MongoDB collection, in real life we have POJO classes that are mapped with these data. The MongoDB Object Document Mapper (ODM) is much like the Doctrine2 ORM in its philosophy and how it works. Click a sample dataset to lean more about it. The customer data is normalized across multiple tables, with the application relying on the RDBMS to join seven separate tables in order to build the customer profile. Moreover, we will learn the two type of GridFS in MongoDB: chunks and file with their sub types. The following example will show the documents that have likes greater than 10 and whose title is either 'MongoDB Overview' or by is 'tutorials point'. MongoDB Indexing Tutorial with Example By Chaitanya Singh | Filed Under: MongoDB Tutorial An index in MongoDB is a special data structure that holds the data of few fields of documents on which the index is created. If you downloaded the. This is a real example of creating a MongoDB replica set with 4 nodes across 2 separate Linux hosts. Build a web app using Azure Cosmos DB's API for MongoDB and. Install MongoDB as a Windows Service. MongoDB Atlas Free Tier Cluster: MongoDB Atlas is a fast, easy, and free way to get started with MongoDB. This format makes it easy to humans to read the data, and for machines to parse it. mongodb You can bind mongod only to one IP, with 0. This article will help you understand what mongodb upsert operation is and give an example. Welcome to Boise Code Camp, 2012. npm install node-red-node-mongodb. W3Schools is optimized for learning, testing, and training. MongoDB use DATABASE_NAME is used to create database. js, MongoDB and the Express framework. -t stands for giving an Allocate a pseudo-TTY While building the Image, if you are building an image for the first time, you see that images will be downloaded from the docker hub and files are processed from your local system to the docker container. The first example connects to the testdb database and gets its statistics. 6 on the Internet, but it has to be enabled by itself). js , MongoDB, and an Okta developer account. Once your data is loaded into your data warehouse, you can analyze it with any tool you want – SQL editors, BI tools, even R and Python. It will begin a mongod example with the name set0, on port 27017. The implementation of all these examples and code snippets can be found over on GitHub – this is a Maven based project, so it should be easy to import and run as it is. Each session can contain an arbitrary list of key-value pairs, possibly repeated (ie. sql file with contents similar to the following, to create an Impala table that accesses an existing data file used by Hive. Install MongoDB as a Windows Service. We're the creators of MongoDB, the most popular database for modern apps, and MongoDB Atlas, the global cloud database on AWS, Azure, and GCP. If you've heard about MongoDB and want to know more or are planning a MongoDB project and need to get a quick start, this is the course for you. In this article, which is aimed at Python developers who are new to MongoDB, you will learn how to create a free hosted MongoDB database, install PyMongo, the Python Driver, connect to MongoDB and more. The first half of this series covered MongoDB Validations by Example. The 1-minute data is stored in MongoDB and is then processed in Spark via the MongoDB Hadoop Connector, which allows MongoDB to be an input or output to/from Spark. A Node-RED node to save data in a MongoDB database. This is a comprehensive tutorial on MongoDB, covering hundreds of examples on how to use it with PHP. MongoDB is well suited to store Geolocation data because it provides points, polygons, and other Geolocation objects as well as built-in query methods to query data based on its proximity to a point on a map, within a certain distance of that point, or within lines drawn around that location. initiate() to start another replica set. Data in MongoDB is represented (and stored) using JSON-style documents. So let us get started up by defining the dependencies in our POM file. Also note that for production, you should ensure you have a sound partition key strategy for the data being inserted into MongoDB, when backed by. then we will create CRUD module with Laravel 5. Equivalent SQL where clause is 'where likes>10 AND (by = 'tutorials point' OR title = 'MongoDB Overview')'. js , MongoDB, and an Okta developer account. msi file to run the setup program, which will install the C# driver DLLs in the C:\Program Files (x86)\MongoDB\CSharp Driver 1. MongoDB\Driver\Command represents a database command. In this tutorial, we will show how to configure MongoDB using Spring Data. Consider the MongoDB Inc. This tutorial helps you write Java code that makes connection to MongoDB database. There are several methods of performing aggregations in MongoDB. Provisioning MongoDB)with) Vagrantand)Chef) Nathen)Harvey) Web)Operaons,) CustomInk) [email protected] Here we will see Codeigniter MongoDB CRUD example, where CRUD means Create, Read, Update and Delete. Comparing Cloud MongoDB Services: MongoDB Atlas vs mLab. The preceding image shows the Initializr with Maven chosen as the build tool. Type the desired number of rows (for being added to the corresponding database) into the appropriate field and click the Insert rows button. dll that we downloaded earlier from github. Perl Engineer & Evangelist, 10genMike Friedman#MongoDBdaysSchema DesignFour Real-World UseCases 2. Here, in one simple example, we went through many of MongoDB Driver's features. MongoClient(). Connect the blue arrow from the source component or the data flow transformation that you want to immediately precede the MongoDB Destination component. When we created our database , we created a collection called artists. initiate() to start another replica set. Mongo: This is one of the most common commands used in MongoDB. Tools and technologies used : MongoDB 2. FindIterable. We also give it a database name, and if the database doesn't already exist it will be created for us. NET Web API to build an ApiController with support for HTTP GET, PUT, POST, and DELETE. Replica sets also fail over automatically, so if one of the members becomes unavailable, a new primary host is elected and your data is still accessible. The purpose of this driver is to provide exceptionally thin glue between MongoDB and PHP, implementing only fundamental and performance-critical components necessary to build a fully-functional MongoDB driver. NET development. 8 and JDK 8. aggregate() method in the mongo shell and the aggregate command to run the aggregation pipeline. You will use those values throughout the rest of this sample. MongoDB Atlas Free Tier Cluster: MongoDB Atlas is a fast, easy, and free way to get started with MongoDB. For example, use a data source naming convention that helps other users of the data source figure out which data source to connect to. In this article, which is aimed at Python developers who are new to MongoDB, you will learn how to create a free hosted MongoDB database, install PyMongo, the Python Driver, connect to MongoDB and more. We'll look at some of the different types of validation available in MongoDB, and provide a practical working example of validations in action. As in MongoDB you can have complex object with nested arrays, MongoDB Destination can have multiple inputs, so you need to select to which input you want to provide data. MongoDB represents JSON documents in a binary-encoded format called BSON behind the scenes, and the MongoDB BSON implementation is lightweight, fast, and highly traversable. Along with spring-boot-starter-data-mongodb we will use Project Lombok for easy POJO management. In recent times, there has been some controversy revolving around CIA's non-profit Venture Capital arm, In-Q-Tel, backing the company, which developed MongoDB. MongoDB is an open source database that stores flexible JSON-like "documents," which can have any number, name, or hierarchy of fields within, instead of rows of data as in a relational database. example and accessing-data-mongodb as the Group and Artifact, respectively. js application with a MongoDB database. For a list of datasets in the sample and a description of each, see Available Sample Datasets. As a user, you first create and configure a MongoDB::MongoClient object to connect to a MongoDB. MongoDB $lookup examples including pipeline example, joins, and $lookup with conditions. Amazon DocumentDB (with MongoDB compatibility) is a fast, scalable, highly available, and fully managed document database service that supports MongoDB workloads. The query is the first parameter passed through the method, then the update parameter which is preceded by a comma. One of the most important in the MongoDB operation is to update the Document or collection. One of the most difficult parts of teaching people how to build things with Meteor is figuring out when to introduce certain ideas. MongoDB on AWS, Azure, or Google. In our example, we will be using Spring boot 2. For information about MongoDB itself, see www. Min/Max keys. The new MongoDB on the AWS Cloud document will show you how to design and configure a MongoDB (an open source NoSQL database) cluster that runs on AWS. I know about MongoDB manual with special section about document design. You use the db. Here, we are creating an example that connects to the database and performs basic database operations. Toogit is the world’s top rated and trusted freelancing website for any kind of projects - urgent bug fixes, minor enhancements, short-term tasks, recurring projects, and full-time contract work. In this example, We have used Spring Data to perform the operations with the MongoDB database. Prerequisites: Node. After reading this tutorial, you will be able to install and develop Web base applications using MongoDB. Atlas provides sample data you can load into your Atlas clusters. This is a command for building a docker image for a sample app that I have created. In the previous post we have seen some of the Atomic update modifiers provided by MongoDB with the help of a Java example ,that can be used to. Here is an example of a MongoDB BI Connector data source using Tableau Desktop on a Windows computer: Sign in options. View Annie Dane’s profile on LinkedIn, the world's largest professional community. If you've heard about MongoDB and want to know more or are planning a MongoDB project and need to get a quick start, this is the course for you. Import the MongoDB zip code sample data set. The MongoDB Object Document Mapper (ODM) is much like the Doctrine2 ORM in its philosophy and how it works. One of the most important in the MongoDB operation is to update the Document or collection. MongoDB can be used with all major operating systems. MongoDB stores data in JSON-like documents, which makes the database very flexible and scalable. It is free and open-source cross-platform database. Let’s boot up for Christmas: Spring Boot is an opinionated framework that simplifies the development of Spring applications. mongodb aggregation and data processing Aggregation Pipeline — MongoDB Manual MongoDB provides the db. The R code in the package uses rJava to communicate with the mongo-java-driver. Use of the bulkWrite methods is not recommended when connected to pre-2. This post is in continuation of our Update MongoDB Java Example series. OpenStreetMap in MongoDB example Set:. MongoDB – Insert,Update,Upsert and Delete Examples – CRUD. Hyperscale Performance with Nuxeo Platform and MongoDB Enterprise Advanced This is a guest post by Eric Barroca, CEO - Nuxeo. Standard Sql database servers provides different tools to dump and backup given database. Using the PHP Library for MongoDB (PHPLIB) After the initial driver set-up, we will continue explaining how to get started with the MongoDB driver and corresponding userland library to write our first project. Dilley covers pitfalls, & strengths of using MongoDB ("a very approachable NoSQL solution"), and introduces MJORM. Easily organize, use, and enrich data — in real time, anywhere. Through the Azure CosmosDB extension, you can create, manage and query MongoDB databases from within VS Code. Angular 4 + Spring Boot + MongoDB CRUD example In this tutorial, JavaSampleApproach shows you Angular 4 Http Client & Spring Boot Server example that uses Spring Data to interact with MongoDB and Angular 4 as a front-end technology to make request and receive response. Now you’ll create a simple blog called Blongo. MongoDB Indexing Tutorial with Example By Chaitanya Singh | Filed Under: MongoDB Tutorial An index in MongoDB is a special data structure that holds the data of few fields of documents on which the index is created. Introduction to MongoDB This MongoDB Training Course focuses in the MongoDB technology as a tool to implement new ways to store and handle data that can be modeled as a document format. Learn number of ways to find a document or multiple documents based on same condition as we do in SQL using WHERE CLAUSE. MongoDB C Driver¶ A Cross Platform MongoDB Client Library for C. Preview: Step 1: Create MongoDB database. In this Spring Data MongoDB Example, we will build a Simple Spring Application and perform CRUD operations on the Mongo Database with the help of Spring Data MongoDB and MongoRepository. Bulk Import a CSV File Into MongoDB Using Mongoose With Node. MongoDB is a scalable, high-performance, open source NoSQL database. To run the sample, you'll need Visual Studio and a valid Azure Cosmos DB account. I would like to learn how to properly design MongoDB documents. By Yashwant Chavan, Views 155761, Last updated on 09-May-2019. I also found that the typically quite excellent MongoDB documentation tended to fall short on examples of the specific things I had trouble with. -t stands for giving an Allocate a pseudo-TTY While building the Image, if you are building an image for the first time, you see that images will be downloaded from the docker hub and files are processed from your local system to the docker container. js project which queries from MongoDb. Data serialisation is not too complex as long as the documents in MongoDb adhere to some schema, like in our. Storing polymorphic classes in MongoDb using C# By Jagmeet January 24, 2015 C# , Database 4 Comments NoSql databases like Mongo give us advantage of storing our classes directly in data store without worrying too much about schemas. Python MongoDB Connectivity. Spring Data MongoDB Example Summary I hope this tutorial was good enough to get you started with Spring Data MongoDB, it's not feasible to cover everything. Prerequisites to run the sample app. This year I decided to present on MongoDB. As a user, you first create and configure a MongoDB::MongoClient object to connect to a MongoDB. Today we will look into the MongoDB Java Driver features and how to perform common CRUD (Create, Read, Update, Delete) operations. msi file, double click on the. This format makes it easy to humans to read the data, and for machines to parse it. Install MongoDB, if you do not already have it installed. Spring Data MongoDB – MongoRepository example: How to use SpringData MongoRepository to interact with MongoDB. This post will cover the basics and get you started with your Node. My concern though is how we organize our views and the routes. Retryable writes are far simpler and superior to the techniques described here. We learned how to map JSON documents to. then we will configuration of mongodb database details on env file. The course is designed for beginners to MongoDB and database, and will introduce common. version v2. If you want to check your databases list, use the command show dbs. Map operation emits key-value pairs. As someone new to Mongo, I am looking for a sample MongoDB database that I can import and play with. In today’s article, we will discuss MongoDB Drop Collection Command With Example. It provides drivers in a lot of popular languages such as C, C++, C#, Java, Perl, PHP, Python, Scala and so on. So I will create a java bean and use it for my examples. Previous Next In this tutorial we will look about some examples of Spring Data - MongoDB integration. The MongoDB examples assume a collection named users that contain documents of the following prototype:. 3 and MongoDB v3. Docker: A simple service container example with MongoDB In my previous post I said I was going to build, over time a Pulp repository using a set of containerized service components and host it in a Kubernetes cluster. We also give it a database name, and if the database doesn’t already exist it will be created for us. Following is a step by step guide to perform MongoDB Text Search in a MongoDB Collection. Querying MongoDB Java Example April 13, 2014 I am Learning , Java , MongoDB , NoSql Java , MongoDB , NoSql Saurabh Jain In the earlier post Mongodb java Hello World Example we have seen some basic operations on the MongoDB and searching the document was one of them there we had used find(). In this Spring Data MongoDB Example, we will build a Simple Spring Application and perform CRUD operations on the Mongo Database with the help of Spring Data MongoDB and MongoRepository. It is a document-oriented database, which means that data will be stored in documents. ConventionProfile instance, and call its SetIdGeneratorConvention to specify the default mechanism to use for ID generation. Available only on Automated deployments. examples/mongodb_insert_two_elements. This format makes it easy to humans to read the data, and for machines to parse it. MongoDB regex based queries are a fairly common query in most applications using MongoDB. Uses use database-name , to switch to your database (even this is not created yet). For more details: – About Angular 4 Routing: How to work with Angular Routing – Spring Boot + Angular 4 – About Angular Http Client to GET/POST/DELETE:. In this tutorial, You will learn how to access MongoDB database using Spring 4 MongoRepository. I also found that the typically quite excellent MongoDB documentation tended to fall short on examples of the specific things I had trouble with. 2 was released in late August and the biggest change it brought was the addition of the Aggregation Framework. Databases, Part 1. Okta has Authentication and User Management APIs that reduce development time with instant-on, scalable user infrastructure. Over the years, MongoDB has become a popular choice as the backend data store of many well-known organizations. However these MongoDB regex queries have a downside, all but one type of regex makes poor use of indexes and results in performance problems. Every web application needs a place to store its critical data. Before moving forward, let's see what exactly collections are. This collection will contain documents with artist details, such as the artists' names, albums they've released, etc. If you have not yet attempted Part I of sample questions - they are available here. MongoDB falls into the group of documents-oriented NoSQL. So, without much ado – let's get started!. 0 supports transactions (it seems to be supported in 3. 1 to listen to the loop back interface or bind_ip= to listen to that IP only or bind_ip=0. MongoDB Basics for. This post is in continuation of our Update MongoDB Java Example series. Ideal for NoSQL newcomers and experienced MongoDB users alike, this book also includes many real-world schema design examples. aggregate() method in the mongo shell and the aggregate command to run the aggregation pipeline. BSON originated in 2009 at MongoDB. This tutorial helps you write Java code that makes connection to MongoDB database. Begint the command prompt and connect with the mongod instance. MongoDB & FoxNext Games Meetup - Join MongoDB and FoxNext Games for a Meetup at the FoxNext Playa Vista office. NET MVC project that uses MongoDB. The MongoDB driver is organized into a set of classes representing different levels of abstraction and functionality. These examples were specifically written with Node. For those that don't know, Sakila is a MySQL sample schema that was published about 8 years. Also note that for production, you should ensure you have a sound partition key strategy for the data being inserted into MongoDB, when backed by. These are the steps for installing MongoDB as a Windows Service. In this example, i will create mongodb database with "books" collection. SpringBoot MongoDB integration: MongoDB is an opensource NoSQL database which is opensource too. In this article we will see how to set up MongoDB for Windows and how you can get started with it. Atomic modifiers in MongoDB can only work against a single document. MongoDB, top NoSQL database engine in use today, could be a good data storage alternative when analyzing large volume data. properties and put them in one of three roles: mongoreadonly, mongoreadwrite, admin. Putting aside the controversy, let's look at the MongoDB's role in Aadhar. For instructions on loading this sample data into your cluster, see Load Sample Data into Your Cluster. In MongoDB, a document is a big JSON blob with no particular format or schema. Following is a step by step guide to perform MongoDB Text Search in a MongoDB Collection. Before moving forward, let's see what exactly collections are. MongoDB Atlas Free Tier Cluster: MongoDB Atlas is a fast, easy, and free way to get started with MongoDB. js And MongoDB — Smashing Magazine. For the code camp this year I explore some of the differences between schema design for a relational database and schema design for MongoDB. 2 was released in late August and the biggest change it brought was the addition of the Aggregation Framework. How Our FinTech Startup Migrated to MongoDB's Database-as-a-Service to Save Time and Money. The hottest hands-on course for MongoDB is finally here! No more boring traditional textbook theories, instead learn by actually doing in this fun and functional project tutorial! MongoDB is a powerful and popular database software that works on the backend of your application to save your data. Local MongoDB installation: For more information on installing MongoDB locally, see Install MongoDB. js is the shell script. We will be providing a complete CRUD example showing how to perform the most common REST data retrieval and data. We're the creators of MongoDB, the most popular database for modern apps, and MongoDB Atlas, the global cloud database on AWS, Azure, and GCP. Then we used MongoClient. Build the future. 6 on the Internet, but it has to be enabled by itself). A unique index is automatically created on this field which cannot be removed. The replica nodes have geographical names that suggest where they might live. Before moving forward, let's see what exactly collections are. For Example, we have to store 1GB of information in MongoDB. Here, we are creating an example that connects to the database and performs basic database operations. Your created database (mydb) is not present in list. You can get the…. We have a small "collection" of MongoDB collections that we use during dbKoda testing and development. User a dockerfile to automate creating a container. That's why we wrote Mongoose. The next step is to configure Node to handle the request data from a web form and insert this data into MongoDB. I hope you are already aware of collections are. Spring MongoDB example tutorials for all CRUD insert update delete read operations on MongoDB documents. port=27017 Here we are telling Spring Data the host and port of our Mongo instance. In this tutorial, I am listing 4 ways you can utilize to insert or add document(s) into a collection in MongoDB. Atomic modifiers in MongoDB can only work against a single document. Spring MongoDB example tutorials for all CRUD insert update delete read operations on MongoDB documents. Build a web app using Azure Cosmos DB's API for MongoDB and. Prerequisites to run the sample app. Open a new process in RapidMiner Studio. The following example will show the documents that have likes greater than 10 and whose title is either 'MongoDB Overview' or by is 'tutorials point'. MongoDB uses javascript interface for the shell commands. Map operation emits key-value pairs. BSON originated in 2009 at MongoDB. Attention A T users. node-red-node-mongodb 0. The next step is to configure Node to handle the request data from a web form and insert this data into MongoDB. MongoDB\Driver\Manager is responsible for maintaining connections to MongoDB. * Finding and Querying…. If you downloaded the. MongoDB C Driver¶. The query is the first parameter passed through the method, then the update parameter which is preceded by a comma. js driver for the database in your app. You can click to vote up the examples that are useful to you. The 1-minute data is stored in MongoDB and is then processed in Spark via the MongoDB Hadoop Connector, which allows MongoDB to be an input or output to/from Spark. MongoDB has a special BSON type called ObjectId which is a 12-byte values made up of a time stamp, the machine id, the process id and a sequence number. By adding the annotation org. MongoDB Questions and Answers – Aggregation Mechanics Posted on March 8, 2015 by bookgal This set of MongoDB Multiple Choice Questions & Answers (MCQs) focuses on “Aggregation Mechanics”. js modules for database systems in your Express app:. As someone new to Mongo, I am looking for a sample MongoDB database that I can import and play with. MongoDB is an open source database management system (DBMS) that uses a document-oriented database model which supports various forms of data. js file) and execute in single go. Available only on Automated deployments. If you followed the Docker example, the database will have already been created. The query is the first parameter passed through the method, then the update parameter which is preceded by a comma. To query MongoDB with Drill, you install Drill and MongoDB, and then you import zip code aggregation data into MongoDB. A repository of MongoDB examples in several languages. Here are some more sample questions for C100DBA: MongoDB Certified DBA Associate Exam. Example: Suppose I have a collection of user sessions. However, it is also of praticle interest for more typed languages and C# is a good example. As an example, the following dictionary might be used to represent a blog post: >>>. To access the menus on this page please perform the following steps. In today’s article, we will discuss MongoDB Drop Collection Command With Example. Collections are like containers for related documents. [ServerInfo] is the IP address or host name of the MongoDB server to which you are connecting. host=localhost spring. 1- Download and install the DataDirect MongoDB ODBC driver (32-bit or 64-bit depending on version of Tableau). 4 Testing with SSL To run a local mongod with SSL support you need a SSL key and certificate. I am a big fan of your tuts and this example on nodejs came the right time when I have just learned express and mongodb. js file) and execute in single go. Sometimes, the best way of understanding a rather different technology is to get stuck-in and try it out, so Jeremy Jarrell shows how to get started with a simple ASP. Prerequisites. 7, running on Mac OS X 10. 3 MongoDB-Java-Driver 2. You can vote up the examples you like or vote down the ones you don't like. Table of Contents. We will create a "Post It" application in Nodejs and save the data in MongoDb. I wanted to do some experimenting with MongoDB, but I wasn't really happy with any of the sample data I could find in the web. Database statistics. js + MongoDB CRUD and REST Skeleton. It is tempting to set w to the total number of secondaries + primary, but then if one secondary is down the operation will fail and an exception will be thrown, so usually w=2 is safest (primary and one. Hyperscale Performance with Nuxeo Platform and MongoDB Enterprise Advanced This is a guest post by Eric Barroca, CEO - Nuxeo. Now say we like fuzzy kittens and want to record every kitten we ever meet in MongoDB. If you want to recreate my exact settings, I used Ubuntu Linux with FireFox. Database statistics. Here’s an example of saving such a function and then using it in an eval. In this Spring Data MongoDB Example, we will build a Simple Spring Application and perform CRUD operations on the Mongo Database with the help of Spring Data MongoDB and MongoRepository. SpringBoot MongoDB integration: MongoDB is an opensource NoSQL database which is opensource too. Okta has Authentication and User Management APIs that reduce development time with instant-on, scalable user infrastructure. After reading this tutorial, you will be able to install and develop Web base applications using MongoDB. JDBC Driver for MongoDB® The JDBC driver for MongoDB runs SQL queries against MongoDB for any Java application that supports JDBC. Using JOINs in MongoDB NoSQL Databases Thanks to Julian Motz for kindly helping to peer review this article. • PostgreSQL’s relational data storage is very efficient. This quickstart demonstrates how to create a Cosmos account with Azure Cosmos DB's API for MongoDB. For information about MongoDB itself, see www. Also note that for production, you should ensure you have a sound partition key strategy for the data being inserted into MongoDB, when backed by. js, Express and MongoDB says: July 11, 2013 at 9:32 am In this post, we're going to be creating a simple Employee database using Node, Express and MongoDB. To access the menus on this page please perform the following steps. Spring Boot + Angular 6 example | Spring Data + REST + MongoDb CRUD example In this tutorial, we show you Angular 6 Http Client & Spring Boot Server example that uses Spring Data to do CRUD with MongoDb and Angular 6 as a front-end technology to make request and receive response. W3Schools is optimized for learning, testing, and training. If you are not using the Employee Directory sample application, you can still use this post on its own to learn how to implement RESTful services with Node. Uses use database-name , to switch to your database (even this is not created yet).