Optimise async request / code [For Beginners]

[void09]

As far as number of lines go, you can combine the creation of http client, 
request, and checking for content in one line. Also, although you made an async 
proc, you use waitFor in a for loop, for each future, which will make the 
program behave just like doing non async http requests, it will make each http 
request sequentially, only start a new one after the future/proc is complete. 
To avoid this you can replace the for loop with "waitFor all futures" 
<https://nim-lang.org/docs/asyncfutures.html#all%2Cvarargs%5BFuture%5BT%5D%5D>

So the code would look like:
    
    
    import std/[httpclient, asyncdispatch, strutils]
    
    const urls = @[
      "https://www.google.com";,
      "https://www.yahoo.com";]
    
    proc getContent(url: string): Future[void] {.async.} =
      echo url & " " & $(await 
newAsyncHttpClient().getContent(url)).contains("tag")
    
    var futures : seq[Future[void]]
    
    for url in urls: futures.add(getContent(url))
    
    waitFor all futures
    
    Run