Image Base64 Embed Code Generator Upload Image
Uploading files using Base64 encoding is a common practice. In this guide, I'm going to show you how to upload files using base64 encoding
What is Base64 encoding?
Base64 Encoding is the virtually widely used technique for storing or transmitting binary data past converting it to text. With this technique, binary data, which basically consists of 8-bit bytes, is divided into 6-bit (two^6 = 64) parts. 64 different numbers expressed in half-dozen bits are matched with 64 different characters expressed as Printable Characters in the ASCII graphic symbol set up.
Base64 encoding is most normally used to attach binary files to electronic postal service in applications of the MIME (Multipurpose Internet Mail Extensions) standard.
Another usage area of Base64 Encoding is calculation images and other files to HTML and CSS documents by encoding with Base64 using Data URLs format in modern browsers.
Example
In our case, we will upload the paradigm file past encoding the image as Base64. First, let'south write elementary HTML and set the Bootstrap CSS link.
<! DOCTYPE html >
< html lang = " en " >
< head >
< meta charset = " utf-8 " />
< meta name = " viewport " content = " width=device-width, initial-scale=1 " />
< link rel = " stylesheet " href = " ./index.css " />
< link
href = " https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css "
rel = " stylesheet "
integrity = " sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC "
crossorigin = " anonymous "
/>
< championship > Base64 File Upload </ title >
</ head >
< body >
< div style = " margin : 24 px " >
< h2 > Upload Image </ h2 >
</ div >
< script src = " ./alphabetize.js " > </ script >
</ trunk >
</ html >
Then nosotros demand to employ the HTML input tag to receive an prototype file from the user.
Nosotros will use file input because it must be the input blazon file we want to receive.
<! DOCTYPE html >
< html lang = " en " >
< head >
< meta charset = " utf-8 " />
< meta name = " viewport " content = " width=device-width, initial-scale=1 " />
< link rel = " stylesheet " href = " ./alphabetize.css " />
< link href = " assets/css/bootstrap-responsive.css " rel = " stylesheet " />
< link
href = " https://cdn.jsdelivr.net/npm/bootstrap@five.0.2/dist/css/bootstrap.min.css "
rel = " stylesheet "
integrity = " sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC "
crossorigin = " anonymous "
/>
< title > Base64 File Upload </ title >
</ head >
< trunk >
< div style = " margin : 24 px " >
< h2 > Upload Image </ h2 >
</ div >
< div style = " margin : 16 px ; padding : 16 px " >
< input
class = " form-control course-control-lg "
id = " selectAvatar "
type = " file "
/>
</ div >
</ html >
Now we take an input to collaborate with the user and select a file. Let's add the HTML elements that will show the image file and Base64 code nosotros received from the user.
<! DOCTYPE html >
< html lang = " en " >
< head >
< meta charset = " utf-viii " />
< meta name = " viewport " content = " width=device-width, initial-scale=1 " />
< link rel = " stylesheet " href = " ./index.css " />
< link href = " assets/css/bootstrap-responsive.css " rel = " stylesheet " />
< link
href = " https://cdn.jsdelivr.internet/npm/bootstrap@5.0.two/dist/css/bootstrap.min.css "
rel = " stylesheet "
integrity = " sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC "
crossorigin = " anonymous "
/>
< title > Base64 File Upload </ title >
</ head >
< body >
< div fashion = " margin : 24 px " >
< h2 > Upload Epitome </ h2 >
</ div >
< div style = " margin : 16 px ; padding : 16 px " >
< input
class = " form-control grade-control-lg "
id = " selectAvatar "
type = " file "
/>
</ div >
< div class = " container " >
< div class = " row " >
< div course = " col " >
< h6 > Image Preview: </ h6 >
< img class = " img " id = " avatar " />
</ div >
< div form = " col " >
< h6 > Base64 Output </ h6 >
< textarea id = " textArea " rows = " 30 " cols = " 50 " > </ textarea >
</ div >
</ div >
</ div >
< script src = " ./index.js " > </ script >
</ trunk >
</ html >
Our fields are prepare to display the image file and Base64 code. Now let's practise our operations on the JavaScript side.
const input = document . getElementById ( "selectAvatar" ) ;
const avatar = document . getElementById ( "avatar" ) ;
const textArea = document . getElementById ( "textAreaExample" ) ;
const convertBase64 = ( file ) => {
return new Hope ( ( resolve , reject ) => {
const fileReader = new FileReader ( ) ;
fileReader . readAsDataURL ( file ) ;
fileReader . onload = ( ) => {
resolve ( fileReader . upshot ) ;
} ;
fileReader . onerror = ( error ) => {
refuse ( mistake ) ;
} ;
} ) ;
} ;
const uploadImage = async ( effect ) => {
const file = event . target . files [ 0 ] ;
const base64 = await convertBase64 ( file ) ;
avatar . src = base64 ;
textArea . innerText = base64 ;
} ;
input . addEventListener ( "change" , ( due east ) => {
uploadImage ( e ) ;
} ) ;
Here we accept data in file format and encode it as Base64. Then we evidence this encoded image and Base64 encoding output.
Live Codesandbox Example
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Refer to the refine documentation for more than data. →
How to Base64 Upload with Refine?
The Base64 file upload process with refine is very elementary. How to apply it is explained step by step in the guide and example.
Refer to the refine Base64 Upload guide for more than data. →
View Source
Refine Base64 Upload Live Codesandbox Example
Source: https://refine.dev/blog/how-to-base64-upload/
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