Startpoints

A startpoint is the on-chain interface for your contract to call your midpoint. All calls to a midpoint begin with a call to callMidpoint() at the startpoint contract for a given chain.

Midpoint Chain ID	Chain	Startpoint Address
1	Ethereum	0x8343b2CBE03748f8170b977BD8e1e85098D81B05
5	Goerli Testnet	0x9BEa2A4C2d84334287D60D6c36Ab45CB453821eB
10	Optimism	0x0cabEDbDB07C2AFc7D840cF34A2A7CC46DA446BD
137	Polygon	0x80Ab1b74Fc8E57aE586854A876692D9088e78483
420	Optimism Goerli Testnet	0xa89c2f3A20cED98cd39AFd0Ab5B207C46Fb2Cdf3
3141	Filecoin Hyperspace Testnet	0x0705c34AA032354A7966776098E0c12cc5539Bc8
42161	Arbitrum One	0x0cabEDbDB07C2AFc7D840cF34A2A7CC46DA446BD
80001	Polygon Mumbai Testnet	0x47a4905D4C2Eabd58abBDFEcBaeB07F1A29b660c
421613	Arbitrum Goerli Testnet	0x1063051eFe824703E1cf36206A8FA361545E9b54

event callOracleEvent(uint64 _midpointId, uint256 _requestId, address _contract);
event callOracleEventData(uint64 _midpointId, bytes _data, uint256 _requestId, address _contract);

uint256 private rollingRequestId;

constructor() {
    rollingRequestId = 0;
}

function callMidpoint(uint64 _id) public returns (uint256 requestId) {
    rollingRequestId = rollingRequestId + 1;
    emit callOracleEvent(_id, rollingRequestId, msg.sender);
    return rollingRequestId;
}

function callMidpoint(uint64 _id, bytes calldata _data) public returns (uint256 requestId) {
    rollingRequestId = rollingRequestId + 1;
    emit callOracleEventData(_id, _data, rollingRequestId, msg.sender);
    return rollingRequestId;
}