Deploying & Writing to a Stellar Smart Contract (Oracle Example)
With K3 Labs, you can deploy a Stellar smart contract from GitHub and create workflows to write data to it, like updating price feeds for oracles. This guide walks you through the entire process.
1. Deploy a Stellar Smart Contract
Step 1: Open Deploy Page
Go to Deploy > Deploy Stellar Contract.
Step 2: Fill in Deployment Details
GitHub Repository URL: Paste your smart contract repo. Example:
https://github.com/k3-labs/stellar-data-contract(This example creates a contract to store and update data like prices.)Wallet: Select your Stellar wallet to pay for gas.
You can create a Stellar wallet using our Cubist integration if needed. See Cubist integration page for more details.
Network: By defaul Mainnet is selected. You can opt-in for Testnet using a checkmark below.
Step 3: Deploy
Click Deploy.
After a few seconds, you’ll receive a confirmation message with your Smart Contract Address.
2. Create a Workflow to Update Oracle Data
Now, let’s create an automation to periodically update this contract with BTC prices.
Example Workflow:
1. Trigger
Schedule
Run every 1 Hour
2. Market Data
Read BTC Price
Source: Market Data API or eOracle contract
3. Write to Smart Contract
- Blockchain: Stellar
- Contract Address: (Your Deployed Contract Address)
- Method: Write
- Value: Use BTC price from Step 2
4. Alerts
Send yourself a confirmation with price and transaction hash
See an example of the Write to Smart Contract set up below.
3. Visual Example:
4. Notes:
Your Stellar wallet must have enough XLM to cover transaction fees.
This example uses a simple
Writemethod. You can adapt it for other data types or use cases.Works with both Mainnet and Testnet.
Benefits:
✅ Deploy & manage custom Stellar contracts in minutes ✅ Automate data updates like prices, indexes, and metrics ✅ Secure wallet integration & gas management via Cubist ✅ Scalable for DeFi, Oracles, and Data Publishing
Last updated