Upgrade contract_templates to work with ethers 4.0

1 files changed, 3 insertions, 5 deletions

diff --git a/packages/contract_templates/partials/callAsync.handlebars b/packages/contract_templates/partials/callAsync.handlebars
index 94752691d..dd1b90212 100644
--- a/packages/contract_templates/partials/callAsync.handlebars
+++ b/packages/contract_templates/partials/callAsync.handlebars
@@ -8,10 +8,8 @@ async callAsync(
     const inputAbi = self._lookupAbi(functionSignature).inputs;
     [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
     BaseContract.strictArgumentEncodingCheck(inputAbi, [{{> params inputs=inputs}}]);
-    const ethersFunction = self._lookupEthersInterface(functionSignature).functions.{{this.name}}(
-        {{> params inputs=inputs}}
-    ) as ethers.CallDescription;
-    const encodedData = ethersFunction.data;
+    const ethersFunction = self._lookupEthersInterface(functionSignature).functions.{{this.name}};
+    const encodedData = ethersFunction.encode([{{> params inputs=inputs}}]);
     const callDataWithDefaults = await BaseContract._applyDefaultsToTxDataAsync(
         {
             to: self.address,
@@ -21,7 +19,7 @@ async callAsync(
         self._web3Wrapper.getContractDefaults(),
     );
     const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
-    let resultArray = ethersFunction.parse(rawCallResult);
+    let resultArray = ethersFunction.decode(rawCallResult);
     const outputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).outputs;
     resultArray = BaseContract._formatABIDataItemList(outputAbi, resultArray, BaseContract._lowercaseAddress.bind(this));
     resultArray = BaseContract._formatABIDataItemList(outputAbi, resultArray, BaseContract._bnToBigNumber.bind(this));