> For the complete documentation index, see [llms.txt](https://docs.langstack.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.langstack.com/welcome/get-started/learn-langstack/introduction-to-entities/exercise-2-customer-records/step-2-test-the-api.md).

# Step 2: Test the API

In Step 2, test the created API by providing the values of the variables startcount, count, and startjoindate.

* To test the API, click on the \[Test] button.

<figure><img src="https://media.langstack.com/documentation/media/images/code/training_manual/chapter_5/testapi.png" alt=""><figcaption></figcaption></figure>

* The Test API box will display the “Entity actions” toggle button disabled.&#x20;
* To allow the Entity to be updated or created with entity actions, click the “Entity actions” toggle button.

{% hint style="info" %}
Note: If “Entity actions” is not enabled, testing an API using entity actions will result in the status of “failed” in the response.&#x20;
{% endhint %}

<figure><img src="https://media.langstack.com/documentation/media/images/code/training_manual/chapter_5/apitestenableentity.png" alt=""><figcaption></figcaption></figure>

* Add values for the Query Strings as per the data available for querying in the target entity. For example:&#x20;
  * startcount=10&#x20;
  * count=5&#x20;
  * startjoindate=2015-01-01

<figure><img src="https://media.langstack.com/documentation/media/images/code/training_manual/chapter_5/ch5ex2testqs.png" alt=""><figcaption></figcaption></figure>

* Click the \[Test API] button.

![](/files/PdhmxckEauCKfl5KNfvB)

* The records are displayed in the Body.

{% embed url="<https://media.langstack.com/documentation/media/images/code/training_manual/chapter_5/ch5ex2testapibody.png>" %}