How do i add images in hyperledger

Question

I am trying to make a registry based on hyperperledger with composer .

1- How to integrate image upload with hyperledger Fabric and Composer and How to create smart contract for the registry

Answer 1

In your registry, you can Base64-ify your image/content/media and store as String. In your modeled Asset in Hyperledger Composer, one attribute for 'imageString' is defined as 'String in your Hyperledger Composer model file.

Technically, this is also a Node question. Using Javascript, eg. fs.readFileSync(‘yourimageFile.jpg’).toString(‘base64’);, you should be able to convert the image to a Base64 string in your code.

please also see this link for more information - it tells you how to go about storing your images (media, PDFs etc) - and the comments at the end.