{"id":25430497,"url":"https://github.com/vutsalsinghal/off-chain-storage","last_synced_at":"2026-04-29T12:32:54.112Z","repository":{"id":101094701,"uuid":"138949356","full_name":"vutsalsinghal/Off-Chain-Storage","owner":"vutsalsinghal","description":"Off-Chain data storage on Ethereum using IPFS","archived":false,"fork":false,"pushed_at":"2018-08-07T19:08:49.000Z","size":131,"stargazers_count":1,"open_issues_count":1,"forks_count":1,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-05-14T13:20:26.035Z","etag":null,"topics":["blockchain","django","ethereum","ipfs","metamask","ropsten","solidity","web3js"],"latest_commit_sha":null,"homepage":"https://dapp.pythonanywhere.com/ipfsLink","language":"HTML","has_issues":false,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/vutsalsinghal.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2018-06-28T01:07:23.000Z","updated_at":"2022-10-22T08:20:54.000Z","dependencies_parsed_at":"2023-09-17T02:20:43.085Z","dependency_job_id":null,"html_url":"https://github.com/vutsalsinghal/Off-Chain-Storage","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/vutsalsinghal/Off-Chain-Storage","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vutsalsinghal%2FOff-Chain-Storage","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vutsalsinghal%2FOff-Chain-Storage/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vutsalsinghal%2FOff-Chain-Storage/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vutsalsinghal%2FOff-Chain-Storage/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/vutsalsinghal","download_url":"https://codeload.github.com/vutsalsinghal/Off-Chain-Storage/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vutsalsinghal%2FOff-Chain-Storage/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32426574,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-29T12:24:25.982Z","status":"ssl_error","status_checked_at":"2026-04-29T12:24:24.439Z","response_time":110,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["blockchain","django","ethereum","ipfs","metamask","ropsten","solidity","web3js"],"created_at":"2025-02-17T03:39:12.276Z","updated_at":"2026-04-29T12:32:54.107Z","avatar_url":"https://github.com/vutsalsinghal.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# [Off-Chain-Storage](http://dapp.pythonanywhere.com/ipfsLink)\n\nWeb 3.0 apps (Ðapp) now-a-days need to store/retrieve data just like Web 2.0 (conventional/centralized) apps. But it is extremely costly (computationally and hence monetarily) to store data (\u003e few bytes) for eg PDF, images, etc on EVM. The EVM allow us to save variables/state in permanent storage cheaply. So a possible solution to store large data is to save the data off-chain using options such as: [IPFS](https://ipfs.io/) and [Swarm](http://swarm-guide.readthedocs.io/en/latest/introduction.html). In this Ðapp, IPFS has been used for off-chain storage!\n\n## Ðapp Preview\n\u003cdiv align=\"center\"\u003e\n    \u003cimg src=\"https://pyofey.pythonanywhere.com/static/dapp.png\"\u003e\u003cbr\u003e\u003cbr\u003e\n \u003c/div\u003e\n\n## Requirements\n\n- (Use of virtualenv is strongly recommended!) `pip install requirements.txt`\n- MetaMask [extension](https://metamask.io/)\n- Remix - Solidity [IDE](https://remix.ethereum.org/#optimize=true)\n\n## Deployment\n\n- Create ethereum account using MetaMask. Make sure to choose \"Ropsten Test Network\"\n- Request few ethers from the test [faucet](https://faucet.metamask.io/)\n- Go to Remix solidity IDE and copy-paste the contents of opinion.sol file in the IDE.\n- Click on \"Start to compile\" from the Compile tab in the top right corner.\n- After compiling it, go to Run tab and click on \"deploy\". Metamask should bring up a popup asking you to confirm the transaction. If not, just open the Metamask extension and do it there.\n- A message at the bottom of the Remix console will notify you when the contract is deployed. You can click on the link to explore the transaction on [ropsten.etherscan.io](https://ropsten.etherscan.io/). Note the contracts address!\n- Download Django source code.\n- Now open the root folder of the source code in terminal:\n    ```bash\n    $ mkvirtualenv --python=python3 venv\n    $ pip install requirements.txt\n    $ ./manage.py makemigrations\n    $ ./manage.py migrate\n    $ ./manage.py runserver\n  ```\n- Now navigate to `localhost:8000/ipfsLink`\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvutsalsinghal%2Foff-chain-storage","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvutsalsinghal%2Foff-chain-storage","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvutsalsinghal%2Foff-chain-storage/lists"}