# Dynamic dropdown options

The example rule code below loads a dropdown field's options by calling a REST web service on the load of a step.  The returned data is used to load the options.

```
const response = await fetch('https://dog.ceo/api/breeds/list/all');
const dogs = await response.json();
// set the options to the keys of the returned object
DropdownDogs.options = Object.keys(dogs.message);
```


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.feathery.io/platform/build-forms/advanced-logic/examples/api-connectors/dynamic-dropdown-options.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.