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kotlinlang

Hello sorry for noob question,
I'd like to ask about how could I get query parameters in array
for example I have this endpoint,

I want to get books that have genre romance or comedy from this route
<http://localhost:3001/books?genre=romance&amp;genre=comedy>

I'm using this code
```
val genre = call.request.queryParameters["genre"]
```

but only return the first genre which is `romance`

I don't have a answer to your question, but why do you use the query parameter multiple times? You could define it as commar separated list:
<http://localhost:3001/books?genre=romance,comedy>
This would be easy to use and is used in most publicly available websites.

You should use array notation, genre[]=romance&amp;genre[]=comedy

```
val genres = call.request.queryParameters.getAll("genre")
```