EthPhoto is a DApp to fulfill the requirement of a non-centralized server web-app, which is built using Ethereum. Ethereum is a blockchain based platform that helps in building decentralized apps, where there is no centralized server and multiple users participate in the process through the blockchain platform.

Instead of having central database to store data, this App has the data which is replicated to all the participants in the form of Blockchain, that ensures validity of data in spite of having malicious users among the participants. The files are stored using a unique fingerprint (the cryptographic hash of their content) which also solves the problem of data duplication across the network.

Built by Team 03, for the inter-hall event "Opensoft" of IIT Kharagpur.

• An Operating System such as Linux / Mac / Windows
• Atleast 9MB of free disk-space
• A web browser such as Chrome / Firefox / Opera / Safari

Install the most recent versions of each of the below listed softwares -

• node and npm : Install nodejs for your platform, by following this link.
• IPFS : Install IPFS, by following this download link.
• python : Install python from here
• Solidity : Follow the installation procedure specified in this link
• geth : Follow the platform-specific installation procedure of geth for your respective platform, from this link.
• Python module "Pillow" : Install the "Pillow" module of Python, by following the guide given in this link.
• Node app dependencies : To install all the dependencies of this node App, run npm install on your terminal. Have a look at the packages.json file to go through all the dependencies.

You're all set to run the DApp now! 🎉

Run ./setup.sh -s on your terminal from the root directory of the EthPhoto DApp.

Run node server.js on your terminal to serve the nodejs web-app.

Access localhost:5000 on your web browser, to see the working DApp EthPhoto. 🎉

Licensed under the terms of the ISC License.