This repository holds the code for a distributed app meant to run on the ethereum blockchain.
https://github.com/UnSciPreneur/sharingDApp/
For further background see our publication "A Decentralised Sharing App running a Smart Contract on the Ethereum Blockchain" published in the Proceedings of the 6th International Conference on the Internet of Things (Pages 177-178): http://b0x.it/l/K8f42
You wil l find more documentation regarding the app in truffle_dapp/README.md.
This project has been implemented with the friendly support of the Bosch IoT Lab (www.iot-lab.ch).
Check out the app from git using above URL. Then run (in sharingDApp/)
$ sudo npm install -g ganache-cli truffle
$ ./rpcnetwork.sh
and in a separate shell (also in sharingDApp/)
$ cd truffle_dapp
$ npm install
$ truffle deploy
$ npm run dev
(truffle serve is broken since truffle 3.x. See trufflesuite/truffle#463)
This will start up a testrpc client with the required accounts, deploy the smart contract into this test environment, and start the app. The app is then available at http://localhost:8080.
Of course you can use a full ethereum client instead of testrpc. Simply adjust the port settings in truffle_dapp/truffle.js and make sure that the accounts you want to use are unlocked.
Warning: Modern browsers (e.g. Chrome 57.0) do not grant access to the camera to scripts that have not been loaded over HTTPS. The only exception being scripts loaded from localhost. So please wrap the communication with the app in HTTPS if you serve the app from a remote location. We have tested this with Apache 2.4 and mod_proxy.
If you only want to test the smart contracts and other app features you can circumvent the camera issue by entering the QR encoded urls manually. For a locally hosted app this would mean going to http://localhost:8080/?objId=1234567 in your browser.
The app comes with a QR code reader. The QR codes are expected to encode a link of the form https://your-domain.tld/?objId=1234567 where the GET parameter objId (mind the capital "I") contains the numerical id of a (to be) registered object.
In order to generate QR codes you can go here: http://www.qrstuff.com/