How do i add images in hyperledger

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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
Aug 21, 2018 in Blockchain by Johnathon
• 9,090 points

1 answer to this question.

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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.

-> How to deal with forms,images,videos of an asset in hyperledger composer

answered Aug 21, 2018 by Perry
• 17,100 points

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