diff options
Diffstat (limited to 'packages/web3-wrapper/src/web3_wrapper.ts')
| -rw-r--r-- | packages/web3-wrapper/src/web3_wrapper.ts | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/packages/web3-wrapper/src/web3_wrapper.ts b/packages/web3-wrapper/src/web3_wrapper.ts index ace6a2d61..ed2d0a119 100644 --- a/packages/web3-wrapper/src/web3_wrapper.ts +++ b/packages/web3-wrapper/src/web3_wrapper.ts @@ -315,6 +315,9 @@ export class Web3Wrapper { */ public async callAsync(callData: CallData, defaultBlock?: BlockParam): Promise<string> { const rawCallResult = await promisify<string>(this._web3.eth.call)(callData, defaultBlock); + if (rawCallResult === '0x') { + throw new Error('Contract call failed (returned null)'); + } return rawCallResult; } /** |