#When creating a todolist with sql where i code the sql install#

When we install Node.js, we gain access to NPM (Node Package Manager). Verify that Node.js was properly installed by opening the command prompt and typing this command: node -versionĤ. The installer will install Node.js and prompt you to click on the finish button.ģ. You can leave the other settings in default mode.

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Run the Node.js installer and accept the license agreement. Select the installer that is compatible with your operating system and environment.Ģ. This ability to use Javascript with HTML allows ejs to have a dynamic rendering feature.How to Create and Manage an Employee Database Prerequisites Node.js Installationġ. The Javascript statements are written within and variables are written within. This dynamic rendering is simply showing the newly added task on our page without having the user reload the page.Įxplanation: The syntax of ejs is similar to HTML. We also write some Javascript logic that maintains the dynamic rendering of our application.

Step 7: Now let’s go to our “views” folder and create an ejs file, index.ejs, Here we define the structure of our webpage, using HTML code. On the response object, we call the render function that takes the name of ejs file to send, and an object of values to send to the frontend.

The result this function returns if no error is found is an array of objects. An empty object is passed to this find function to tell that there is no condition that the found document has to match, thus it signifies, that all documents are to be fetched. find is a method defined by mongoose on each collection to find documents in that collection. app.get() tells that it is to be run when a get request is received on “/”, by running the callback inside it. Project Structure: It will look like the following.Įxplanation: The get request is for reading data, when the URL of our application is typed in the browser, the get request is sent to the “/” route, which is our home page for reading and viewing contents of our home page. Now create two folders beside our app.js, Name them as public ( for files we want to display to the user ) and views( for EJS files ).

mongodb for being able to use databases and mongoose is its framework for code redundancy and easy connection.

body-parser for reading data from incoming requests.

express is a Nodejs framework used to help in code redundancy.

Npm install –save express ejs body-parser mongodb mongooseĮxplanation: The above commands install the required packages, which are required in our application. Step 3: After this, write the following command to install some packages that we will be using in our application: Step 2: Write the following command in the terminal, to initialize this folder for making a Nodejs project. Let’s start with step by step implementation. Note: This article will focus mainly on the backend, thus detailed explanations for the frontend part, i.e., HTML and CSS will not be given, although code will be provided.

A new request for deleting the item is sent when we check it, once the task is completed.

A new request is sent to the server-side when we click on add button.

A home page is rendered where the user can see his tasks and also insert a new task.

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