Crate cloudevents

This crate implements the CloudEvents Spec for Rust.

use cloudevents::{EventBuilder, AttributesReader, EventBuilderV10};
use chrono::{Utc, DateTime};
use url::Url;

let event = EventBuilderV10::new()
    .id("my_event.my_application")
    .source("http://localhost:8080")
    .ty("example.demo")
    .time(Utc::now())
    .build()?;

println!("CloudEvent Id: {}", event.id());
match event.time() {
    Some(t) => println!("CloudEvent Time: {}", t),
    None => println!("CloudEvent Time: None")
}

This crate includes:

• The Event data structure, to represent CloudEvent (version 1.0 and 0.3)
• The EventBuilder trait and implementations, to create Event instances
• The implementation of serde::Serialize and serde::Deserialize for Event to serialize/deserialize CloudEvents to/from JSON
• Traits and utilities in message to implement Protocol Bindings
• Feature-guarded modules for various Protocol Binding implementations, e.g. actix, axum, reqwest, warp, rdkafka

Feature flags

Cloudevents uses a set of feature flags to conditionally compile only the module associated with the Protocol Binding you need:

• actix: Enables the [binding::actix] protocol binding module. This extends the [actix_web::HttpRequest] with a to_event function, the [actix_web::HttpResponseBuilder] with an event function, and implementations for [actix_web::FromRequest] and [actix_web::Responder] in order to take advantage of actix-web’s Extractors and Responders
• reqwest: Enables the [binding::reqwest] protocol binding module.
• warp: Enables the [binding::warp] protocol binding module.
• axum: Enables the [binding::axum] protocol binding module.
• rdkafka: Enables the [binding::rdkafka] protocol binding module to seamlessly consume/produce cloudevents within Kafka messages.

Re-exports

• pub use event::Data;
• pub use event::Event;
• pub use event::AttributesReader;
• pub use event::AttributesWriter;
• pub use event::EventBuilder;
• pub use event::EventBuilderV03;
• pub use event::EventBuilderV10;

Modules

• binding
  Provides protocol binding implementations for crate::Event.
• event
  Provides Event data structure, EventBuilder and other facilities to work with Event.
• message
  Provides facilities to implement Protocol Bindings.

Macros

• header_value_to_str