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Questions tagged [oracle]

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2 votes
1 answer

Are EOS smart contract self executing? Can a contract monitor an external API call from a weather site and send a transaction if it's sunny?

Ethereum contracts require someone to execute the contract and are not self aware. Are EOS contracts self executing if some external thing happens like the weather changing when detected from a ...
Patoshi パトシ's user avatar
4 votes
3 answers

How can a contract obtain and process variable data from the outside world?

Suppose I have a contract which depends on the current price of a real-world asset (like the price of gold). How would the contract obtain that price? How would I ensure that every time the contract ...
expaand's user avatar
  • 654
3 votes
1 answer

How can I call third party APIs from inside a smart contract at a set time or interval?

In a scenario where a smart contract needs to check against a third party service (Let's say an API with weather information from a trusted source like and make a decision on moving ...
INNVTV's user avatar
  • 131