Hi, I would like to receive `List<Stirng>` in a `GET` request what's the most efficient way to...

# ktor

[Danish Ansari]

Hi, I would like to receive List<Stirng> in a GET request what's the most efficient way to do so?

I'm currently doing like this but was hoping if I can receive List<String> without any manual operation

val keywords = call.request.queryParameters["keywords"]?.split(',') // List<String>?

GET url will be like ?keywords=a,b,c

[Łukasz Bednarczyk]

You can try to use Location and set List<String> as a param

[Danish Ansari]

Sorry I'm quite new and didn't understand what you just said. Can you show some small example or redirect to some doc regrading the same?

[Łukasz Bednarczyk]

Locations | Ktor 🙂

[Łukasz Bednarczyk]

Do you understand how does it work?

[Danish Ansari]

Thanks

[Danish Ansari]

figuring out

[Big Chungus]

Also call.request.queryParameters.getAll("key")

[Big Chungus]

Then you make a request by passing in multiple key=one&key=two...

[Danish Ansari]

@Big Chungus thanks but wouldn't that make things hefty for the client?

[Big Chungus]

Well it's a standard http way of defining areay-like query parameters

[Big Chungus]

Plus remember that client will be building query in code, so it can just use loop or map function to prefix stuff with key

[Danish Ansari]

ok thanks, well then I think I'll go by getAll method because I don't I think I should add new plugin just for such a simple use case. right?

[Big Chungus]

Ktor might even support comma separated params with getAll. Give it a go, I haven't tried it myself that way

[Danish Ansari]

NO comma separated didn't work, but the way you mentioned worked

[Big Chungus]

Good to know!

[Matteo Mirk]

@Danish Ansari the client, unless is someone using curl or similar, should be using an appropriate library that will abstract away the complexity of building a URL query string