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I've been trying to find an example of how to read a jpeg image and then show the image.
var http = require('http'), fs = require('fs'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/html'}); fs.readFile('image.jpg', function (err, data) { if (err) throw err; res.write(data); }); res.end(); }).listen(8124, "127.0.0.1"); console.log('Server running at http://127.0.0.1:8124/'); Tried the following code but I think the encoding needs to be set as buffer. Using console.log it outputs 'Object' for the data.
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writeHead(200, {'Content-Type': 'text/html'}); fs. readFile('image. jpg', function (err, data) { if (err) throw err; res. write(data); }); res.
js ― A PNG decoder in JS for the canvas element or Node. js. var PNG = require('png-js'); var myimage = new PNG('myimage. png'); var width = myimage.
Here is how you can read the entire file contents, and if done successfully, start a webserver which displays the JPG image in response to every request:
var http = require('http') var fs = require('fs') fs.readFile('image.jpg', function(err, data) { if (err) throw err // Fail if the file can't be read. http.createServer(function(req, res) { res.writeHead(200, {'Content-Type': 'image/jpeg'}) res.end(data) // Send the file data to the browser. }).listen(8124) console.log('Server running at http://localhost:8124/') }) Note that the server is launched by the "readFile" callback function and the response header has Content-Type: image/jpeg.
[Edit] You could even embed the image in an HTML page directly by using an <img> with a data URI source. For example:
res.writeHead(200, {'Content-Type': 'text/html'}); res.write('<html><body><img src="data:image/jpeg;base64,') res.write(Buffer.from(data).toString('base64')); res.end('"/></body></html>'); Two things to keep in mind Content-Type and the Encoding
1) What if the file is css
if (/.(css)$/.test(path)) { res.writeHead(200, {'Content-Type': 'text/css'}); res.write(data, 'utf8'); } 2) What if the file is jpg/png
if (/.(jpg)$/.test(path)) { res.writeHead(200, {'Content-Type': 'image/jpg'}); res.end(data,'Base64'); } Above one is just a sample code to explain the answer and not the exact code pattern.
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