#loop until FULL_FILE is set in fetch_blob.. this is for bad/slow connections
            while [ "$FULL_FILE" != "1" ];do
                local token="$(curl -fsSL "$authBase/token?service=$authService&scope=repository:$image:pull" | jq --raw-output '.token')"
                fetch_blob "$token" "$image" "$layerDigest" "$dir/$layerTar" --progress
                sleep 1
            done

while :; do
            #if the file already exists.. we will be resuming..
            if [ -f "$targetFile" ];then
                #getting current size of file we are resuming
                CUR=`stat --printf="%s" $targetFile`
                #use curl to get headers to find content-length of the full file
                LEN=`curl -I -fL "${curlArgs[@]}" "$blobRedirect"|grep content-length|cut -d" " -f2`

                #if we already have the entire file... lets stop curl from erroring with 416
                if [ "$CUR" == "${LEN//[!0-9]/}" ]; then
                    FULL_FILE=1
                    break
                fi
            fi

            HTTP_CODE=`curl -w %{http_code} -C - --tr-encoding --compressed --progress-bar -fL "${curlArgs[@]}" "$blobRedirect" -o "$targetFile"`
            if [ "$HTTP_CODE" == "403" ]; then
                #token expired so the server stopped allowing us to resume, lets return without setting FULL_FILE and itll restart this func w new token
                FULL_FILE=0
                break
            fi

            if [ "$HTTP_CODE" == "416" ]; then
                FULL_FILE=1
                break
            fi

            sleep 1
        done