Getting Started with MongoDB Atlas, NodeJS, and Azure App Service
Introduction
The combination of MongoDB Atlas, NodeJS, and Azure App Service provides a powerful platform for developing cloud-native applications. MongoDB Atlas is the industry’s leading cloud-hosted database, providing the scalability and reliability of MongoDB without the hassle of managing the underlying infrastructure. NodeJS is the popular JavaScript runtime for developing server-side applications. And Azure App Service is Microsoft’s Platform-as-a-Service (PaaS) offering, making it easy to deploy and scale applications on the cloud.In this blog post, we will walk you through the steps involved in deploying a NodeJS application on Azure App Service, connected to a MongoDB Atlas cluster. We will start by creating an Azure App Service instance and then provisioning a MongoDB Atlas cluster. We will then write a simple NodeJS application and deploy it to Azure App Service. We will also cover how to configure the app to connect to the MongoDB Atlas cluster.
Prerequisites
Before we begin, you will need an Azure account and a MongoDB Atlas account. You will also need a text editor or IDE to write your application code.Creating an Azure App Service Instance
The first step is to create an instance of Azure App Service. To do this, log in to the Azure portal and click on “Create a resource”. Select “Web App” from the list of services, and then click “Create”.In the “Create Web App” page, give your App Service instance a name and select an appropriate resource group. You can also select the region where your App Service instance will be deployed. Once you’re done, click “Create”.
Provisioning a MongoDB Atlas Cluster
Now that we have our App Service instance, we can provision a MongoDB Atlas cluster. Log in to MongoDB Atlas and click on “Create a Cluster”. Select the region where you want to deploy the cluster, and then select the “M0” tier. This is the free tier, and it is perfect for development and testing.Once the cluster is provisioned, click on “Connect” and then “Connect Your Application”. Copy the connection string, as we will need it later.
Writing the NodeJS Application
The next step is to write the NodeJS application that will be deployed to the App Service instance. For this example, we will create a simple web application that displays a list of users stored in a MongoDB Atlas collection.First, create a new directory and create a file named “app.js”. This will be the entry point of the application. We will use the Express web framework to handle requests and responses. Add the following code to the file:
Deploying the Application to Azure App Service
Once the application is ready, we can deploy it to the Azure App Service instance. To do this, we will use the Azure command-line interface (CLI).First, login to the Azure CLI using the command “az login”. Then, create an App Service deployment profile using the command “az webapp deployment profile create”. This will create a deployment profile with the name “azuredeploy”.
Next, use the command “az webapp deployment source config-zip” to deploy the application. This command will package the application code into a zip file and deploy it to the App Service instance.
Configuring the Application to Connect to MongoDB Atlas
The last step is to configure the application to connect to the MongoDB Atlas cluster. To do this, edit the “app.js” file and replace the “MONGODB_URI” with the connection string that we copied earlier.Finally, restart the App Service instance using the command “az webapp restart”.
Conclusion
In this blog post, we have walked you through the steps involved in deploying a NodeJS application on Azure App Service, connected to a MongoDB Atlas cluster. We started by creating an Azure App Service instance and then provisioning a MongoDB Atlas cluster. We then wrote a simple NodeJS application and deployed it to Azure App Service. We also covered how to configure the app to connect to the MongoDB Atlas cluster.Using the combination of MongoDB Atlas, NodeJS, and Azure App Service, it is easy to quickly deploy and scale cloud-native applications. With the power of MongoDB Atlas, you can focus on developing applications without worrying about managing the underlying infrastructure.
References:
Getting Started with MongoDB Atlas, NodeJS, and Azure App Service
and objectives.
1. MongoDB Atlas
2. NodeJS
3. Azure
