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fun zipApi1AndApi2(): Observable<Pair<Media, okhttp3.Response>> {
return Api.api1().flatMap { response1 ->
if (response1.isSuccessful) {
var uploadUrl = response1.headers().get(ApiUtils.Header.LOCATION)
uploadUrl?.let { url ->
Api.api2(url).map { response2 -> Pair(response1, response2) }
} ?: run {
throw Exceptions.propagate(NullPointerException("Media upload URL is empty"))
}
} else
Observable.error(ApiRequestException(response1))
}
}
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