Dfinity Oracles is a framework for building blockchain oracles for the Internet Computer.
Dfinity Crypto Oracle Example is a sample project using Dfinity Oracles to retrieve the current ETH and BTC prices from a number of different cryptocurrency exchanges, summarize them, and write the results to a software canister.
Dfinity Weather Oracle Example is another sample project, using Dfinity Oracles to retrieve current weather conditions in various cities.
Also see the Dfinity Oracles tutorial for step-by-step instructions about writing oracles from scratch.
To build the crypto oracle:
go build
To run the crypto oracle:
./dfinity-crypto-oracle