SmartDataProvider Sophia example
Sophia SmartDataProvider example overview
This example implements 2 contracts and 2 behaviours- client-side and server-side.
Client contract's behaviour:
Client asks for the data (in our case - simply hardcoded exchange rates), the server, which uses oracles to provide an information (currently hardcoded).
Server contract's behaviour:
When server contract is deployed, contract's address will be registered as an oracle in Aeternity blockchain. The information(in our case - exchange rates) and contracts key are also initialized and stored at the time of contract initialization. Server makes validations of the request and returns a requested data.
Ensure that you have installed forgAE project
How to deploy the contract
This command will deploy the contract in the local network.
The configuration of deployment is written in
How to run the tests
All tests should be passing.
get_exchange_rate(oracle_interface, currency)- the function takes 2 arguments -
oracle_interfacewhich is the server-side contract's address and
currencywhich is the name of currency. The return type of this function is a
get_oracle_address()- the function which returns the oracle address. Return type is
process_response(oracle, query)- the function starts processing user's request,
oracleis the key of the oracle, registered in a state of the server's contract and the
querywhich is a request to the server. Return type is