How to display an image in base64 format?image

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.

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.

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.

Hi guys,

Thanks for you suggestions which were very helpful!

Which approach you followed?

For now, I just changed the API provider I was using in order to have the URL of the image to display in the Rest response. So, with that new provider, I don't need anymore to manage the image base64 content. Once my PoC finished, I should have much time to try to implement the solutions that come from you and ramanjaneyulut.