Deep Dive Into Functions
summary
Demonstrates that Chainlink Functions runs user JS on a decentralized Oracle Network so a smart contract can call external APIs and return verifiable results; tooling used: Functions playground, Functions Toolkit npm, Secrets Manager, Polygon Mumbai, and OpenAI (ChatGPT) API; built a Functions-enabled consumer contract, created a subscription and 3.3 LINK funded it, encrypted and uploaded secrets, sent a request that returns bytes decoded on-chain; uses OpenAI API via Functions, a 300000 gas callback, and notes a 256 byte limit on responses.
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chapters (9)
- 0:00Welcome
- 14:20Chainlink Functions overview
- 33:24Mental models for Functions
- 55:01Setting up the development environment
- 1:08:14Deploy consumer contract
- 1:23:16Create and fund subscription
- 1:42:40Secure API secrets
- 1:54:28Make Functions request
- 2:01:43Developer resources
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