Goroutines and channels

[royal pendant]

Hi guys, have a function that checks proxy from a list. Response sends in a channel and then in main function reads from it, but nothing happens, idk what to do((((
Also have this panic( Pls help me

[stoic token]

You are not showing everything, first please consider providing the full console output
if there's panic: prefix you should also include it, if there's stack traces, you should also include it
the screenshot of code is not really helpful since the error is vague and you did not say much about it

you are also doing parallelism incorrectly, consider removing the last for loop out, and changing it to for range respchan instead of dats

[royal pendant]

Okay, will provide more info

[fallen spindle]

in main function, you only call one time SendReqBuy, but after called this function, your code in for range , but for range need recieve number of dats lens , but your code need recieve number of dats , and you only can recieve one mesage

[stoic token]

you did not provide the code so i cant say much other then whatever thing you use did not expect timeout to be exceeded

if you are using unreliable proxies they may be dead thus resulting in the timeout

[stoic token]

your code should be made to handle erratic and uncooperative network/proxy

consider not panicing on err!=nil

there you go

your code is told to panic if there's an error

so it does precisely what you told it to do

you should implement a state to retry failures, and if it fails enough times, give up on it by using another proxy, or exit the whole app by panicking if there's no usable proxy

[royal pendant]

problem in channels i suppose

[stoic token]

there is nothing to do with channel

this is the problem

you are not handling the error

you are panicking at sight of any error

[royal pendant]

Now i return an error

and nothing happens

[stoic token]

i dont know about your code so i cant say much

you need to handle when errors are returned too

making it return an error wont solve problems

[stoic token]

you should try using the debugger to see what's happening then

[stoic token]

my instinct tells me you havent move the second for loop out of the first for loop

right now you are trying to

for {
  go startJob(resultCh)
  for result:= range resultCh {
    doThing(result)
  }
}

which means only the first job ever get started

what you want is to

for {
  go startJob(resultCh)
}
for result:= range resultCh {
    doThing(result)
}

[royal pendant]

can i dm you?