Ethers.js: How to disable console.log

[jeansoonsik]

Normally our application logging with a standard format to console in docker environment, the logging is directly capture from console output. I am facing an issue that the smart contract having multiple functions with a same name, the ethers will output a warning message to console.

WARNING: Multiple definitions for XXXX

Do you have any idea to disable the console.log inside ethers library?

[ricmoo]

I probably should add something to the errors to disable warnings. There isn’t anything easy to do until I update that though. Do you need function overloading? That itself can lead to bugs... :s

[ricmoo]

As I think about this more, I think future versions won’t allow ambiguous calls. If there is a transfer(uint) and transfer(address) then both explicit functions will be available, but calling transfer will throw an ambiguous call exception.

I’ll experiment with this in the v5 branch tomorrow.

For v4, I’ll just add an errors.disableWarnings = true option.

[ricmoo]

You should now be able to set the internal log level:

ethers.errors.setLogLevel("debug");

ethers.errors.setLogLevel("default");
ethers.errors.setLogLevel("info");

ethers.errors.setLogLevel("warn");

ethers.errors.setLogLevel("error");

ethers.errors.setLogLevel("off");

Let me know if that works for you.

Thanks! :)

[ricmoo]

Closing this now, but I monitor closed issues. Let me know if there are any issues, or feel free to re-open. :)

Thanks! :)

[wighawag]

How do I disable log in v5 ?
I'd like to get rid of these duplicate definition message in the log

[ricmoo]

Ah yes, I noticed a few weeks ago I have not added that yet. I will add it today.

[wighawag]

Any update on this ?

[ricmoo]

Ah yes, I just added this the other day, but haven’t published the change yet.

I’ll do that today with a few other changes that need to be published.

[ricmoo]

By the way, this should be available in the latest published version. :)

[RobertoSnap]

Useing "ethers": "^5.0.0-beta.175",

Getting this while trying to turn of this logs:

[ricmoo]

I think you need ethers.utils.Logger.setLogLevel instead. Let me know if that doesn’t solve it...

[wighawag]

With "ethers": "^5.0.0-beta.175",
and

const ethers = require('ethers');
ethers.utils.Logger.setLogLevel('off');

I get the following error :

TypeError: ethers.utils.Logger.setLogLevel is not a function

Was it added in beta.175 ?

[ricmoo]

There was a bug that prevented warnings from being properly suppressed. Please try out 5.0.0-beta.177 and use the ethers.utils.Logger.setLogLevel("off") to try it out.

Let me know if there are any problems. :)

[wighawag]

I still get the issue

TypeError: ethers.utils.Logger.setLogLevel is not a function in some project where the dependency on ethers is "ethers": "^5.0.0-beta.181",

I guess it is related to how other project depend on other ethers packages
I noticed the various packages have a dependency on "@ethersproject/logger": ">=5.0.0-beta.129",

it should be "@ethersproject/logger": ">=5.0.0-beta.136", no ?

[wighawag]

I workaround it by adding

"resolutions": {
    "@ethersproject/logger": "5.0.0-beta.136"
 }

[ajb413]

I'm using 5.0.7 in my ts rollup build:

src/index.ts:9:33 - error TS2345: Argument of type '"off"' is not assignable to parameter of type 'LogLevel'.

9 ethers.utils.Logger.setLogLevel('off'); // turn off warnings

Found 1 error.

Shouldn't this work? Is there an export of LogLevel on the ethers class? Thank you.

[ricmoo]

@ajb413

It’s an enum, so can you try Logger.levels.OFF instead of the string "off"? Let me know if that still doesn’t work.

[ajb413]

whoops wrong browser tab, meant to post in https://github.com/ethers-io/ethers.js/issues/947

anyway:

ethers.utils.Logger.setLogLevel(ethers.utils.Logger.levels.ERROR); // turn off warnings

is the cure, I only want to turn off warnings because an ABI has an overloaded event that was triggering the warning. Thank you @ricmoo !!