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https://github.com/apache/pulsar-dotpulsar
The official .NET client library for Apache Pulsar
https://github.com/apache/pulsar-dotpulsar
dotnet event-streaming messaging pubsub pulsar queuing streaming
Last synced: 4 days ago
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The official .NET client library for Apache Pulsar
- Host: GitHub
- URL: https://github.com/apache/pulsar-dotpulsar
- Owner: apache
- License: apache-2.0
- Created: 2018-11-07T18:22:16.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2024-12-05T19:51:51.000Z (7 days ago)
- Last Synced: 2024-12-05T20:30:45.532Z (7 days ago)
- Topics: dotnet, event-streaming, messaging, pubsub, pulsar, queuing, streaming
- Language: C#
- Homepage: https://pulsar.apache.org/
- Size: 13.4 MB
- Stars: 235
- Watchers: 42
- Forks: 64
- Open Issues: 16
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
Awesome Lists containing this project
- awesome-pulsar - dotpulsar
README
# DotPulsar
The official .NET client library for [Apache Pulsar](https://pulsar.apache.org/).
DotPulsar is written entirely in C# and implements Apache Pulsar's [binary protocol](https://pulsar.apache.org/docs/en/develop-binary-protocol/).
## What's new?
Have a look at the [changelog](CHANGELOG.md).
## Getting Started
Let's take a look at a "Hello world" example, where we first produce a message and then consume it. Note that the topic and subscription will be created if they don't exist.
First, we need a Pulsar setup. See [Pulsar docs](https://pulsar.apache.org/docs/getting-started-home/) for how to set up a local standalone Pulsar instance.
Install the NuGet package [DotPulsar](https://www.nuget.org/packages/DotPulsar/) and run the follow code example:
```csharp
using DotPulsar;
using DotPulsar.Extensions;
const string myTopic = "persistent://public/default/mytopic";
// connecting to pulsar://localhost:6650
await using var client = PulsarClient.Builder().Build();
// produce a message
await using var producer = client.NewProducer(Schema.String).Topic(myTopic).Create();
await producer.Send("Hello World");
// consume messages
await using var consumer = client.NewConsumer(Schema.String)
.SubscriptionName("MySubscription")
.Topic(myTopic)
.InitialPosition(SubscriptionInitialPosition.Earliest)
.Create();
await foreach (var message in consumer.Messages())
{
Console.WriteLine($"Received: {message.Value()}");
await consumer.Acknowledge(message);
}
```
For a more in-depth tour of the API, please visit the [Wiki](https://github.com/apache/pulsar-dotpulsar/wiki).
## Supported features
- [X] Service discovery
- [X] Automatic reconnect
- [X] TLS connections
- [X] Pulsar Proxy
- [X] Producer - send with custom metadata
- [X] Producer - send with event time, sequence id, and delayed message delivery
- [X] Producer - send with key and ordering key
- [X] Producer - partitioned topics
- [X] Consumer - subscription with initial position and priority level
- [X] Consumer - subscription types exclusive, shared, failover, and key shared
- [X] Consumer - receive and single + cumulative acknowledge
- [X] Consumer/Reader - seek on message-id and publish time
- [X] Consumer - unsubscribe
- [X] Consumer - compacted topics
- [X] Consumer - partitioned topics
- [X] Reader API
- [X] Read/Consume/Acknowledge batched messages
- [X] Telemetry
- [Tracing](https://github.com/apache/pulsar-dotpulsar/wiki/Tracing)
- [Metrics](https://github.com/apache/pulsar-dotpulsar/wiki/Metrics)
- [X] Authentication
- TLS Authentication
- JSON Web Token Authentication
- Custom Authentication
- [X] [Message compression](https://github.com/apache/pulsar-dotpulsar/wiki/Compression)
- LZ4
- ZLIB
- ZSTD
- SNAPPY
- [X] Schemas
- Boolean
- Bytes (using byte[] and ReadOnlySequence\)
- String (UTF-8, UTF-16, and US-ASCII)
- INT8, INT16, INT32, and INT64
- Float and Double
- Time (using TimeSpan)
- Timestamp and Date (using DateTime)
For a horizontal comparison with more language-specific clients, see [Client Feature Matrix](https://pulsar.apache.org/client-feature-matrix/).
## Roadmap
Help prioritizing the roadmap is most welcome, so please reach out and tell us what you want and need.
## Join Our Community
Apache Pulsar has a [Slack instance](https://pulsar.apache.org/contact/), and there you'll find us in the #dev-dotpulsar channel.
## Versioning
We use [SemVer](http://semver.org/) for versioning. For the versions available, see the [tags on this repository](https://github.com/apache/pulsar-dotpulsar/tags).
## Authors
* **Daniel Blankensteiner** - *Initial work* - [Danske Commodities](https://github.com/DanskeCommodities)
Contributions are welcomed and greatly appreciated. See also the list of [contributors](https://github.com/apache/pulsar-dotpulsar/contributors) who participated in this project. Read the [CONTRIBUTING](CONTRIBUTING.md) guide for how to participate.
If your contribution adds Pulsar features for C# clients, you need to update both the [Pulsar docs](https://pulsar.apache.org/docs/client-libraries/) and the [Client Feature Matrix](https://pulsar.apache.org/client-feature-matrix/). See [Contribution Guide](https://pulsar.apache.org/contribute/site-intro/#pages) for more details.
## License
This project is licensed under [Apache License, Version 2.0](https://apache.org/licenses/LICENSE-2.0).