How to display an image in base64 format?image

Question

Hi all, 
 I am looking for a way to display an image like that: 
 data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGYAAAAyAQMAAACUDjzAAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAkElEQVQokWNgjO30+zrra9FC4SWaVxhGeaM8IM+BAQhYQQSDCBqv0Pk5R0FzKyN7zeP5IgydDhpTOltYmTpYRQJEGDoYPBZxdTCwBHAKxDEAee5KBv0MLHGcghMZGCoYOhZxdDSwBAp8cGRg4IDzBIA8AUaOKR0dDUwTFVQCGRgeMLJzFD9nYORTPNzHgA8AAJ6CFJM587x7AAAAAElFTkSuQmCC 
 It is not working because a!imageField is expecting a safeLink value only. 
 Thanks, 
 Sebastien

TJ · Accepted Answer

https://community.appian.com/b/appmarket/posts/base64-document-database-integration 
 May be this will be useful to you. 
 You can form a document by using this component and can than use the formed document in your image field to display image.

Rama Thummala · Answer

Sebastien Mayemba , 
 
afaik, there no OOTB functions available to do. 
First, need the get appian document from BASE64 string, 
Then use the generated document for displaying in image field.

aloks0189 · Answer

Hi Sebastien Mayemba adding to above comments, 
 
Also when you are dealing with Base64 format, it's a memory intensive operation and not recommended to use. 
 
Use case 1: Let's assume, my document size is 500 MB, when we convert it into Bade64, its size may exceed 500 MB (600 MB approximately) which is much higher than the actual size of the document. 
 
Use case 2: let's say you are planning to use a smart service which will hold the Base64 data and will convert it to a appian document and store it into Appian's Knowledge Centre, which you use to display in Interface, it's a very Highly memory intensive operation, where a variable will hold 600 MB of Base64 (let's assume) into its memory at once for further processing. 
 
Use case 3: Let's assume the heap size specified for the JVM of my server instance is 500 MB, in such case while storing these Base64 data into a variable(600 MB) will cause you OutOfMemoryError

Hope this will add you more clarity about the various pros and cons while dealing with Base64 approach. And hence it's not recommended to use.