NODE OPERATORS Overview Running a Chainlink Node Fulfilling Requests Run an Ethereum Client Performing System Maintenance Connecting to a Remote Database Configuration Variables Enabling HTTPS Connections Best Security and Operating Practices Best Practices for Nodes on AWS Miscellaneous
ORACLE JOBS Migrating to v2 Jobs Jobs Cron Direct Request Flux Monitor Keeper Off-chain Reporting Webhook Tasks HTTP Bridge JSON Parse CBOR Parse ETH ABI Decode ETH ABI Decode Log ETH ABI Encode ETH Call ETH Tx Multiply Divide Any Mean Median Mode Sum
Example Projects
Hackathons
The following is a list of selected hackathon projects utilizing Chainlinked contracts.
Hackathon Tutorials
Further exploration into how some of the hackathon winners developed their entries.
| Name | Description | Tutorial |
|---|---|---|
| Link My Ride | A decentralized Tesla rental platform. | Go |
| Open Library Project | A library platform for borrowing books on-chain. | Go |
| Marine Insurance | Parametric insurance for the marine industry. | Go |
| Fruity Market | Vending machine cryptocurrency payments. | Go |
| Whiskey MarketMaker | Craft whiskey crypto payments. | Go |
| Digital Bridge | Two factor authentication for smart contracts. | Go |
| Iroiro | Fetch IPFS Data in Smart Contracts. | Go |
Chainlink Spring 2021 Hackathon
The Chainlink Spring 2021 Hackathon, read our blog here!
| Name | Description | GitHub |
|---|---|---|
| deBridge 🥇 | Cross-chain defi primative | Go |
| Vulcan Exchange 🥇 | Weather derivatives defi platform | Go |
| DeFi Lending Insurance 🥇 | DeFi Lending Insurance | Go |
| Fract 🥇 | Dynamic NFT no-code UI creator | Go |
ETH Global's ETHOnline 2020
The ETH Online, read our blog here!
| Name | Description | GitHub |
|---|---|---|
| Iroiro 🥇 | Decentralized Creators Support Platform. | Go |
| Overlay 🥇 | Long/Short data stream derivatives. | Go |
| Rupia 🥇 | An Indian Rupee (INR) Stablecoin Derivative. | Go |
| SecretPay 🥇 | Buy ETH Privately From PayPal and Revolut. | Go |
| Unipeer 🥇 | Fiat to Ethereum On-Ramp Using an Open Banking API. | Go |
Chainlink Hackathon 2020
The Chainlink Hackathon, read our blog here!
| Name | Description | GitHub |
|---|---|---|
| Link My Ride 🥇 | A decentralized Tesla rental platform. | Go |
| Farm Together 🥇 | A farming game where you can earn real yield in defi. | Go |
| Open Library Project 🥇 | A library platform for borrowing books on-chain. | Go |
ETHGlobal Hack Money
The Hack Money hackathon, read our blog here!
| Name | Description | GitHub |
|---|---|---|
| Genie 🥇 | A no-loss betting platform for gamers. | Go |
| DefiDollar 🥈 | DefiDollar (DUSD) is a stablecoin backed by Curve Finance LP tokens. | Go |
| CandyShop 🥉 | Lottery based arbitrage. | Go |
ETHDenver 2020
Read our blog post here.
| Name | Description | GitHub |
|---|---|---|
| InsuraLink 🥇 | Data-driven insurance agreements that use Chainlink oracles to bridge IoT and smart contracts. | Go |
| 1x.ag 🥈 | Build leveraged trade positions across different lending platforms. | Go |
| We Watch in Public Spaces | Tracking system for calculating event attendance. | Go |
Chainlink Virtual Hackathon 2019
Read our blog post here.
| Name | Description | GitHub |
|---|---|---|
| LinkPal 🥇 | A smart contract uses Chainlink oracles to confirm that the PayPal invoice has been paid. | Go |
| Cerebus Wallet 🥈 | Two-factor authorization for crypto transactions using phone push notifications. | Go |
| Flyt 🥉 | Flight insurance. | Go |
| Link Total Return Swap | A Defi platform which enables Chainlink Node Operators to hedge against LINK price volatility. | Go |
| Smart Marketing Campaigns | Use Google Analytics data to make payments to marketing agencies. | Go |
| Steam Trader | Trustless trading of digital items. | [Go](https://github.com/brent-riva/Steam-Trader" rel="noreferrer, noopener">Go |
| Contractor | Constructor of smart contracts. | Go |
| Fiat Gateway | Crypto Fiat Gateway on Ethereum using Chainlink Oracles | Go |
| The Anti-Social Challenge | Incentivize people to reduce their usage of social platforms. | Go |
ETHBerlin 2019
Read our blog post here.
| Name | Description | GitHub |
|---|---|---|
| Chainlink \u2661 Augur 🥇 | Create derivatives based on the valuations of startups. | Go |
| VollgasDAO 🥈 | Gas futures. | Go |
| Etherflare 🥉 | Reward white hat hackers. | Go |
ETHNewYork 2019
Read our blog post here.
| Name | Description | GitHub |
|---|---|---|
| French Toast Kitty 🥇 | Interact with your Cryptokitty using real-world data. | Go |
| Blocksolid | Donations that pay for Internet services in developing regions. | Go |
ETHParis 2019
Read our blog post here.
| Name | Description | GitHub |
|---|---|---|
| Nanti 🥇 | Issue and use corporate bonds as collateral for instant payment channels. | Go |
| SmartKek 🥈 | Burn tokens to leave comments. | Go |
ETHDenver 2019
Read our blog post here.
| Name | Description | GitHub |
|---|---|---|
| EventLINK 🥇 | Crowdfund events using Twitter APIs, smart contracts, and staking mechanisms. | Go |
| Grand Fondo 🥈 | Decentralized athletic competitions using Strava. | Go |
| Smart Piggies | Peer-to-peer global derivatives market. | Go |
