promisekit: warning: wait() called on main thread!

[jesuasir007]

I have face this issues when calling the transaction or balance ,this will be delay our app ,anyone give me a solution for this ?
web3swift in swift 5

[skywinder]

can you provide examples to reproducw of the code and output log errors?

[dangell7]

Its because your calling wait() in the main thread. Use dispatch.

DispatchQueue.global(qos: .userInitiated).async {
        let dispatchGroup = DispatchGroup()
        dispatchGroup.enter()
        // DO STUFF
        dispatchGroup.leave()
    }

Thats sorta what you do.

Or dont call wait and use a completion handler.

[jesuasir007]

ok

[jesuasir007]

I have run with background and main thread to return a data .

[skywinder]

@dangell7 thanks again for the help! would be happy to send you rewards from GitCoin grant program !