Issue
I am trying to send an image to my express backend. I have tried adding the image directly to my post request body.
var imgValue = document.getElementById("image").value;
In my post request
body : JSON.stringify({
image:imgValue
})
Accessing the image on the backend only gives me the name of the file. Is there any way I can encode the image as a base64 string in the frontend itself?
Solution
You need to load the image into a temporary img element and then you can convert it to base64 when the temporary element has loaded the image.
Use the image as img.src = (YourImageSource)
From the onload function you can then retrieve the base64 value.
var imgEl = document.createElement('img');
imgEl.onload = function(){
var canvas = document.createElement('canvas');
canvas.width = this.width;
canvas.height = this.height;
var ctx = canvas.getContext('2d');
ctx.drawImage(this,0,0);
const d = canvas.toDataURL('image/jpeg');
console.log('base64',d);
};
imgEl.src = img;
Answered By - HendrikThurauEnterprises Answer Checked By - Pedro (PHPFixing Volunteer)
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