# API Monitoring

### Video

{% embed url="<https://www.youtube.com/watch?v=D_fB8orGNsU>" %}

Astera lets users monitor live metrics for all deployed APIs using a Visualization Dashboard.

Select the *Plots Explorer* view in the Server Browser.

<figure><img src="https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/2ImpqUs4OzrJgCl3HNSJ/13-Plots-Explorer.PNG" alt=""><figcaption></figcaption></figure>

This will open a new view.

![](https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/dxQDGyPFtBVjoiWwQze3/02-Monitoring-Dashboard.PNG)

Right-click on the option present underneath the *Dashboard* node and select *Open Dashboard* from the context menu.

![](https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/9sMswRZWhJrskyFIWrZ3/03-Open-Dashboard.PNG)

Selecting this will open the dashboard window.

![](https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/51y6bRWIlLB9eV5bNDPQ/05.png)

The dashboard shows various performance metrics and graphs which can be used to monitor the deployed APIs. These include,

*Total number of requests*

*Requests per second* - Measures the throughput of the API server, gauging the number of requests the server can handle in a time unit of a second.

*Average response duration* - This is a critical KPI that signifies the average time taken for an API to respond.

*Most Recent Logs Record* - Lists the 10 most recent requests catered along with detailed information about the server and client.

*Requests by Response Status* - This shows the percentage of each of the different responses for the deployed APIs.

*Requests by Timespan* - A bar graph that highlights the traffic received as per the number of requests received with time.

*Average Response Duration by Timespan* - A line graph showing the average response durations with time.

![](https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/byQNPq4fhtZ2VIsPSCCI/08.png)

Using the Data Range filter, all these metrics and graphs can also be filtered by a data view.

![](https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/Bg1zyuSEP5C1qYq8Re7p/06.png)

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**Note:** The source table for the dashboard can be configured to purge.
{% endhint %}

From the Server Explorer, right-click on the cluster node and open *Cluster Settings.* Here, you can set the *Purge REST Request Info After* value to enable purging the source table.

A value of 0 signifies that the table would never be purged.

![07](https://content.gitbook.com/content/zEifS4h8yurLAAwiGNX2/blobs/hUmm0ImfFBYcdLjqPGHW/07.png)

This concludes API Monitoring in Astera.