1 files changed, 33 insertions, 0 deletions
diff --git a/src/types.ts b/src/types.ts
index 3bed01547..0c661915e 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -26,8 +26,23 @@ export interface ECSignature {
     s: string;
 }
 
+export type OrderAddresses = [string, string, string, string, string];
+
+export type OrderValues = [
+    BigNumber.BigNumber, BigNumber.BigNumber, BigNumber.BigNumber,
+    BigNumber.BigNumber, BigNumber.BigNumber, BigNumber.BigNumber
+];
+
+export interface TxData {
+    from: string;
+}
+
 export interface ExchangeContract {
     isValidSignature: any;
+    fill: (
+        orderAddresses: OrderAddresses, orderValues: OrderValues, fillAmount: BigNumber.BigNumber,
+        shouldCheckTransfer: boolean, v: number, r: string, s: string, txData: TxData,
+    ) => ContractResponse;
 }
 
 export const SolidityTypes = strEnum([
@@ -35,3 +50,21 @@ export const SolidityTypes = strEnum([
     'uint256',
 ]);
 export type SolidityTypes = keyof typeof SolidityTypes;
+
+export enum ExchangeContractErrs {
+    ERROR_FILL_EXPIRED, // Order has already expired
+    ERROR_FILL_NO_VALUE, // Order has already been fully filled or cancelled
+    ERROR_FILL_TRUNCATION, // Rounding error too large
+    ERROR_FILL_BALANCE_ALLOWANCE, // Insufficient balance or allowance for token transfer
+    ERROR_CANCEL_EXPIRED, // Order has already expired
+    ERROR_CANCEL_NO_VALUE, // Order has already been fully filled or cancelled
+};
+
+export interface ContractResponse {
+    logs: ContractEvent[];
+}
+
+export interface ContractEvent {
+    event: string;
+    args: any;
+}