com.ocadotechnology.sttp.oauth2.AccessTokenProvider.scala Maven / Gradle / Ivy
package org.polyvariant.sttp.oauth2
import cats.implicits._
import org.polyvariant.sttp.oauth2.common._
import org.polyvariant.sttp.oauth2.common.Error.OAuth2Error
import org.polyvariant.sttp.oauth2.json.JsonDecoder
import eu.timepit.refined.types.string.NonEmptyString
import sttp.client3.SttpBackend
import sttp.model.Uri
import sttp.monad.MonadError
import sttp.monad.syntax._
trait AccessTokenProvider[F[_]] {
/** Request new token with given scope from OAuth2 provider.
*
* The scope is the scope of the application we want to communicate with.
*/
def requestToken(scope: Option[Scope]): F[ClientCredentialsToken.AccessTokenResponse]
}
object AccessTokenProvider {
/** Create instance of AccessTokenProvider with sttp backend.
*
* `clientId`, `clientSecret` are parameters of your application.
*/
def apply[F[_]](
tokenUrl: Uri,
clientId: NonEmptyString,
clientSecret: Secret[String]
)(
backend: SttpBackend[F, Any]
)(
implicit decoder: JsonDecoder[ClientCredentialsToken.AccessTokenResponse],
oAuth2ErrorDecoder: JsonDecoder[OAuth2Error]
): AccessTokenProvider[F] =
new AccessTokenProvider[F] {
implicit val F: MonadError[F] = backend.responseMonad
override def requestToken(scope: Option[Scope]): F[ClientCredentialsToken.AccessTokenResponse] =
ClientCredentials
.requestToken(tokenUrl, clientId, clientSecret, scope)(backend)
.map(_.leftMap(OAuth2Exception.apply))
.flatMap(_.fold(F.error, F.unit))
}
}