Small Javascript implementation (Hyperledger)

Hi, should be an easy job for a Javascript developer. Hyperledger is a very easy to setup and use digital ledger technology. You can model your business network easily then test it on the IBM playground. The default setup & tutorials do not include how to get data from other devices into the ledger. Use the default Hyperledger tutorial setup - easy to follow. I can set this up and provide remote access - or the dev can do that on his/her machine. What I need are three small things: You can model an entity as camera and camera has a field string. So I need: 1) connect the camera (any) to the ledger network 2) once a camera is connected any picture taken is saved in a directory (somewhere doesn't matter) 3) but the hash is taken of the picture (phash etc) and that hash is stored in the hyperledger string field modelled earlier. that's it. I know there is also IPFS - it automatically generates a hash and saves it onto the IPFS network. If that is easier for the dev he / she is free to use this. All I need is the hash of the image stored in the ledger. You are also free to use node-red if that is helpful. I don't mind... NOTE IMPORTANT: This is a small 'get to know each other' project. If this works well the dev will be taken on a regular project list including the possibility of a proper position. That's it.