# Module kotlinx-coroutines-rx3 Utilities for [RxJava 3.x](https://github.com/ReactiveX/RxJava). Coroutine builders: | **Name** | **Result** | **Scope** | **Description** | --------------- | --------------------------------------- | ---------------- | --------------- | [rxCompletable] | `Completable` | [CoroutineScope] | Cold completable that starts coroutine on subscribe | [rxMaybe] | `Maybe` | [CoroutineScope] | Cold maybe that starts coroutine on subscribe | [rxSingle] | `Single` | [CoroutineScope] | Cold single that starts coroutine on subscribe | [rxObservable] | `Observable` | [ProducerScope] | Cold observable that starts coroutine on subscribe | [rxFlowable] | `Flowable` | [ProducerScope] | Cold observable that starts coroutine on subscribe with **backpressure** support Integration with [Flow]: | **Name** | **Result** | **Description** | --------------- | -------------- | --------------- | [Flow.asFlowable] | `Flowable` | Converts the given flow to a cold Flowable. | [Flow.asObservable] | `Observable` | Converts the given flow to a cold Observable. | [ObservableSource.asFlow] | `Flow` | Converts the given cold ObservableSource to flow Suspending extension functions and suspending iteration: | **Name** | **Description** | -------- | --------------- | [CompletableSource.await][io.reactivex.rxjava3.core.CompletableSource.await] | Awaits for completion of the completable value | [MaybeSource.awaitSingle][io.reactivex.rxjava3.core.MaybeSource.awaitSingle] | Awaits for the value of the maybe and returns it or throws an exception | [MaybeSource.awaitSingleOrNull][io.reactivex.rxjava3.core.MaybeSource.awaitSingleOrNull] | Awaits for the value of the maybe and returns it or null | [SingleSource.await][io.reactivex.rxjava3.core.SingleSource.await] | Awaits for completion of the single value and returns it | [ObservableSource.awaitFirst][io.reactivex.rxjava3.core.ObservableSource.awaitFirst] | Awaits for the first value from the given observable | [ObservableSource.awaitFirstOrDefault][io.reactivex.rxjava3.core.ObservableSource.awaitFirstOrDefault] | Awaits for the first value from the given observable or default | [ObservableSource.awaitFirstOrElse][io.reactivex.rxjava3.core.ObservableSource.awaitFirstOrElse] | Awaits for the first value from the given observable or default from a function | [ObservableSource.awaitFirstOrNull][io.reactivex.rxjava3.core.ObservableSource.awaitFirstOrNull] | Awaits for the first value from the given observable or null | [ObservableSource.awaitLast][io.reactivex.rxjava3.core.ObservableSource.awaitFirst] | Awaits for the last value from the given observable | [ObservableSource.awaitSingle][io.reactivex.rxjava3.core.ObservableSource.awaitSingle] | Awaits for the single value from the given observable Note that `Flowable` is a subclass of [Reactive Streams](https://www.reactive-streams.org) `Publisher` and extensions for it are covered by [kotlinx-coroutines-reactive](../kotlinx-coroutines-reactive) module. Conversion functions: | **Name** | **Description** | -------- | --------------- | [Job.asCompletable][kotlinx.coroutines.Job.asCompletable] | Converts job to hot completable | [Deferred.asSingle][kotlinx.coroutines.Deferred.asSingle] | Converts deferred value to hot single | [Scheduler.asCoroutineDispatcher][io.reactivex.rxjava3.core.Scheduler.asCoroutineDispatcher] | Converts scheduler to [CoroutineDispatcher] [CoroutineScope]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-coroutine-scope/index.html [CoroutineDispatcher]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-coroutine-dispatcher/index.html [ProducerScope]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.channels/-producer-scope/index.html [Flow]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-flow/index.html [rxCompletable]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/rx-completable.html [rxMaybe]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/rx-maybe.html [rxSingle]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/rx-single.html [rxObservable]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/rx-observable.html [rxFlowable]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/rx-flowable.html [Flow.asFlowable]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/as-flowable.html [Flow.asObservable]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/as-observable.html [ObservableSource.asFlow]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/as-flow.html [io.reactivex.rxjava3.core.CompletableSource.await]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await.html [io.reactivex.rxjava3.core.MaybeSource.awaitSingle]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-single.html [io.reactivex.rxjava3.core.MaybeSource.awaitSingleOrNull]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-single-or-null.html [io.reactivex.rxjava3.core.SingleSource.await]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await.html [io.reactivex.rxjava3.core.ObservableSource.awaitFirst]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-first.html [io.reactivex.rxjava3.core.ObservableSource.awaitFirstOrDefault]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-first-or-default.html [io.reactivex.rxjava3.core.ObservableSource.awaitFirstOrElse]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-first-or-else.html [io.reactivex.rxjava3.core.ObservableSource.awaitFirstOrNull]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-first-or-null.html [io.reactivex.rxjava3.core.ObservableSource.awaitSingle]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/await-single.html [kotlinx.coroutines.Job.asCompletable]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/as-completable.html [kotlinx.coroutines.Deferred.asSingle]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/as-single.html [io.reactivex.rxjava3.core.Scheduler.asCoroutineDispatcher]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-rx3/kotlinx.coroutines.rx3/as-coroutine-dispatcher.html # Package kotlinx.coroutines.rx3 Utilities for [RxJava 3.x](https://github.com/ReactiveX/RxJava).