I have an `AsyncHTTPClient`. It
1\. Gets content from a server that returns a json formatted string
2\. From that string, my script looks for specific json nodes that describes
the media the `AsyncHTTPClient` should download. And then the client downloads
the file.
Now I am using the await keyword in front of the returned string but the
compiler complains:
> Error: Invalid node kind in 'await', got: nnkVarTy
proc main() {.async.}=
if os.paramCount() < 2:
quit("Argument required. Usage: $threadgrabber <Thread link> <Relative
download directory>")
else:
var
boardAndThread = parseBoardAndThread(os.paramStr(1))
downPath = getCurrentDir() & "/" & os.paramStr(2)
board = boardAndThread[0]
thread = boardAndThread[1]
if not downPath.existsDir():
echo "Local path not recognized. Using directory: ", downPath
createDir downPath
var
webClient = newAsyncHttpClient()
link = getAPILink(board, thread)
await var j: string = getContent(webClient, link)
for node in parseJson(j)["posts"]:
if node{"tim"} != nil:
var
tim = node["tim"].getInt()
ext = node["ext"].getStr()
echo("Downloading ", node.mediaLink(board, thread), " as ",
fmt"{tim}", "...")
var downloadFuture = webClient.downloadFile(node.mediaLink(board,
thread), fmt"{downPath}/{tim}.{ext}")
downloadFuture.callback=
proc() =
echo fmt"Downloading {time}.{ext} Complete"
waitFor main()
Run
The main reason I want to use an asynchttpclient is because I want to request
the client to download multiple files asynchronously. Any pointers?
