====Reject====

This [[capture:welcome|Capture]] layer rejects or hides the current frame if certain conditions are met.

A rejected frame is not stored in the database. A hidden frame is stored, but is marked as 'hidden' so it will not be included in downloads.

===Parameters===

^Name^Default^Meaning^
|if||//Optional// - if true, the frame is rejected|
|required||//Optional// - a list of strings. The frame //must// contain //all// of these attribute names.|
|action|ignore|Either //ignore// or //hide//.|

===Description===

This function rejects or hides captures based on conditions.

This is normally used to filter out bad data - for example, unusually short product batches, times when no data was available, or setting reasonable limits on values.

Note that you **ignore** a frame, all processing will stop (later layers won't be run). If you **hide** a frame, the later layers will still be processed as normal.

===Example===

<code javascript>
{
   "type": "reject",
   "required": ["Machine.Speed"],
   "action": "ignore"
}
</code>

The layer will not record the capture unless it contains the attribute 'Machine.Speed'.

<code javascript>
{
   "type": "reject",
   "if": "{Duration} < 120",
   "action": "hide"
}
</code>

The layer will hide the capture if it takes less than 2 minutes.