Oracle & HTTP Call
An oracle helps you to do external HTTP calls to an API.
  • You can register an oracle with only one line of code:
// SYNTAX
oracle(name, permission, base_url).
// EXAMPLE
oracle(coindesk, r, 'api.coindesk.com/v1/bpi').
  • The oraclenamemust be in snake_case OR camelCase
  • The second parameter should always ber(only READ permission is available ATM)
  • Then, you must use the get_http() predicate whenever you want to get data from the oracle:
// SYNTAX
get_http(oracle_name, path, Output).
// EXAMPLE
prompt :-
get_http(coindesk, '/currentprice.json', Output),
set(coindesk, Output).
The Output name must be in PascalCase.
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