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How to Display Flash Messages using connect-flash Module in Node.js and Express

Posted on January 16, 2023

 

 

To display flash messages using the connect-flash module in Node.js and Express, you will need to perform the following steps:

 

  1. Install the connect-flash module by running npm install connect-flash in your terminal.

 

 

2. In your Express app, require the connect-flash module and add it as middleware. For example:

 

 

 

JavaScript
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const flash = require('connect-flash');
 
app.use(flash());

 

 

  1. In your route handlers, set flash messages using the req.flash function. For example:
JavaScript
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req.flash('success', 'Welcome to our website!');

 

 

  1. In your views, display the flash messages using the req.flash function. For example, in an EJS template:

 

 

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<% if (success) { %>
    <div class="alert alert-success">
        <%= success %>
    </div>
<% } %>

 

 

  1. Make sure to call req.flash() after each redirect, otherwise the message will be lost.

 

 

6) You can also add different type of flash message like error, success, warning and info.

 

 

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