# Query String parameters returns empty

**URL:** https://community.wowza.com/t/query-string-parameters-returns-empty/51560
**Category:** Wowza Streaming Engine
**Created:** [July 2, 2018, 4:21pm UTC](https://community.wowza.com/t/query-string-parameters-returns-empty/51560 "2018-07-02T16:21:37Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![ali\_hassan](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@ali\_hassan](https://community.wowza.com/u/ali_hassan)
#### Post date: [July 2, 2018, 4:21pm UTC](https://community.wowza.com/t/query-string-parameters-returns-empty/51560/1 "2018-07-02T16:21:37Z")

</div>

In CheckQueryString querystring always get empty.

```auto
String querystring = stream.getClient().getQueryStr();

```

and url which is use is

```auto
rtmp://localhost:1935/myapp/?79ab25d0-770f-427a-ab2f-27e62eeb9e3b_km

rtmp://localhost:1935/myapp/?u=km

```

in both cases its “”.

I just copied application.xml of vod and only replaced application name VOD to myapp, rest it is same of application.xml of vod.

And using smil file to play videos but that in that case it throws this error

```auto
MediaReaderH264.open[myapp/_definst_]: Not found: C:/Program Files (x86)/Wowza Media Systems/Wowza Streaming Engine 4.7.5/content/.: java.io.FileNotFoundException: C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.7.5\content (Access is denied)|at java.io.RandomAccessFile.open0(Native Method)|at java.io.RandomAccessFile.open(Unknown Source)|at java.io.RandomAccessFile.<init>(Unknown Source)|at com.wowza.io.WowzaRandomAccessFile.<init>(WowzaRandomAccessFile.java:12)|at com.wowza.io.DirectRandomAccessReader.open(DirectRandomAccessReader.java:236)|

```

However full access is given to content folder and all files in this folder.