Retorfit query param taking & and ? together-CodePudding

I have to execute the following API call

URL https://devipapi.octavehi.com/api/state/select-list-items?countryId=236

The retrofit function I create is

@GET("country/state/select-list-items?")
suspend fun fetchStates(@Query("countryId") id: Int): Response<List<ServerState>>

But I get this URL returned from retrofit

https://devipapi.octavehi.com/api/country/state/select-list-items?&countryId=236

ampercent (&) get appended along with ?

How to fix this?

CodePudding user response：

Remove '?' from the @GET

@GET("country/state/select-list-items")
suspend fun fetchStates(@Query("countryId") id: Int): Response<List<ServerState>>

CodePudding user response：

Solved by

@GET("city/select-list-items")
suspend fun fetchCities(@Query(value="stateId", encoded = true) id: Int): Response<List<ServerCity>>