URL slash '/' get double encoded. Changed to %2F instead of / in Android Api Retrofit Kotl-CodePudding

I'm getting an Api response as this

X-Amz-Credential=0XCA1HQW6NU67Z1FP3U1/20221011/us-east-1/s3/aws4_request

But when I send this value as query parameters in the next Api, It is automatically converted into

X-Amz-Credential=0XCA1HQW6NU67Z1FP3U1%2F20221011%2Fus-east-1%2Fs3%2Faws4_request

wherever there is / it is converted into %2F, So the Api is failing as 400 Bad request.

CodePudding user response：

I think you can fix it by first decoding the original response and then sending it as a query param to next request. You can use one of the below methods for decoding:

import android.net.Uri

Uri.decode(response)

import java.net.URLDecoder

URLDecoder.decode(response, "utf-8")

For response = 0XCA1HQW6NU67Z1FP3U1/20221011/us-east-1/s3/aws4_request, the decoded response will be 0XCA1HQW6NU67Z1FP3U1/20221011/us-east-1/s3/aws4_request

CodePudding user response：

You can use the encoded property of retrofit's @Query annotation to mark the value as already encoded, preventing it from being URL encoded again.

For example:

@Query(value = "credential", encoded = true) credential: String