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string bytecode throws error in ContractFactory

See original GitHub issue

Here is the line of code to initialize a contract with ContractFactory:

 const factory = new ContractFactory(abi, bytecode, wallet);

When abi is an array […] and bytecode is in JS object {…}, the execution of the above is fine. However when bytecode comes in string and passed in to ContractFactory as JSON.parse(bytecode), then there is an error:

     Possible Unhandled Promise Rejection (id: 0):
    SyntaxError: JSON Parse error: Unexpected identifier "object" parse@[native code]

If both abi and bytecode are in string, how to pass them to ContractFactory in correct format? The doc says the abi is interface and bytecode is string.

Issue Analytics

State:
Created 3 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

emclabcommented, Jan 22, 2021

Absolutely! Many thanks.

0reactions

ricmoocommented, Jan 22, 2021

Actually looking at the code, it does support natively the bytecode object from Solidty.

You should not convert it to a string using toString(). That discards it’s structure. If you need to serialize it as a string, you need to use JSON.stringify(bytecode).

Let me know if that works.

(Note: if you are storing this in your database, it would save your db a lot of space-time to store just the value of "object" instead)

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