# Prepare dynamic playlist input
<a name="prepare-dynamic-playlist-input"></a>

In the specified event (which must be currently running), manually prepare the specified dynamic playlist input either at the specified time or immediately.

The input being prepared must not be already Active.

## HTTP Request and Response
<a name="prepare-dynamic-playlist-http-request-and-response"></a>

### HTTP URL
<a name="prepare-dynamic-playlist-http-url"></a>

```
POST http://<Live IP address>/live_events/<event ID>/prepare_input
```

### Body of HTTP
<a name="prepare-dynamic-playlist-body-of-http"></a>

XML content consisting of one of the following:
+ One input\_id tag that contains the ID of the input to prepare.

Or
+ One input\_label tag that contains the input\_label of the input to prepare.

Or
+ One prepare\_input element that contains:
  + One input\_id tag that contains the ID of the input to prepare or one input\_label tag that contains the input\_label of the input to prepare.
  + One utc\_time tag that contains the time at which to prepare the input, in UTC time, down to the seconds and (optionally) fractional seconds.

### Response
<a name="prepare-dynamic-playlist-response"></a>

The entire <input> element for the specified input.

## Example 1
<a name="prepare-dynamic-playlist-example"></a>

### Request
<a name="prepare-dynamic-playlist-example-request"></a>

In the event with the ID 31, prepare the input with the label “live\_news\_feed”.

```
POST http://10.4.136.92/live_events/31/prepare_input
----------------------------------------------------
<input_id>live_news_feed</input_id>
```

### Response
<a name="prepare-dynamic-playlist-response"></a>

The response returns the entire <input> element. In this example, this input has the ID 194.

```
<?xml version="1.0" encoding="UTF-8"?>
  <input>
    <active>true</active>
    <id>194</id>
    <input_label>live_news_feed</input_label>
    <loop_source>false</loop_source>
    <status>pending</status>
    .
    .
    .
    <network_input>
      <id>296</id>
      <uri>udp://10.255.10.41:5001</uri>
    </network_input>
    <video_selector>
      <id>2</id>
      .
      .
      .
    </video_selector>
    <audio_selector>
      <id>2</id>
      .
      .
      .
    </audio_selector>
    <input_info>
      .
      .
      .
    </input_info>
  </input>
```

## Example 2
<a name="prepare-dynamic-playlist-example-2"></a>

In the event with the ID 31, prepare the input with the ID 103 and activate the input at 2015123T235959.999:

```
<prepare_input>
  <input_id>103</input_id>
  <utc_time>2015123T235959.999</utc_time>
</prepare_input>
```