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Release async-nats/v0.33.0

0.33.0

Overview

This release introduces last planned breaking changes and stabilizes the async API.

Subject in publish methods

The biggest change is how subjects are handled. Until now, publish was of type String:

client.publish("subject".to_string(), "data".into()).await?;

This was easy to understand and reason about, but had two downsides:

1. It was always allocating
2. It was cumbersome for codebases working with &'static str

The signature has been change into:

// Signature
async fn publish(subject: impl ToSubject, payload: Bytes)
// Usage
client.publish("subject", "data".into()).await?;

This is not only more concise, but also allows avoiding allocations when subject is static, or when it is Subject type that can be cheaply cloned leveraging memory optimized bytes::Bytes mechanism under the hood.

Service API improvements

Beyond that, there were a lot of improvements to Service API to address cross-language compatibility issues. All structures are now tested against common cross-language json schemas. Thanks @​jadamcrain for all the feedback, issues nad PRs related to Service API!

Docs improvements

Despite every method having documentation with examples, we were aware that sometimes its hard to navigate the docs to find what someone is looking for. This was addressed by adding module-level docs.

Added

• Add subject type by @​caspervonb in nats-io/nats.rs#952 & @​Jarema in nats-io/nats.rs#1147
• Add custom serialized for last_error, update schemas by @​piotrpio in nats-io/nats.rs#1140
• Add JetStream, kv, object store and service to top level docs examples by @​Jarema in nats-io/nats.rs#1154
• Add compression option to kv by @​Jarema in nats-io/nats.rs#1143
• Add TLS first support by @​Jarema in nats-io/nats.rs#1136

Changed

• Use muxed inbox to handle jetstream publishes by @​paolobarbolini in nats-io/nats.rs#1130
• Make object store structures more resilient by @​Jarema in nats-io/nats.rs#1127

Fixed

• Fix service Info to include endpoints info by @​Jarema in nats-io/nats.rs#1119
• Fix service defaults by @​Jarema in nats-io/nats.rs#1150
• Fix calculating average processing time as total time / # requests by @​jadamcrain in nats-io/nats.rs#1152

... (truncated)

• 4c8337c Release async-nats/v0.33.0
• 57d6b72 Remove println from service code
• 27ad14a chore: fix fmt
• 27fbab4 chore: fix sync TLS authentication for EC keys
• 375047b Add jetstream, kv, object store and service to top level docs examples
• 7aa1a2f Add nats by example link
• e0b1e4d Fix calculating average processing time for service API
• 67b2798 Make description always serialized
• 9bb47e6 Add schema tests for service
• ff44cda Sanitize service endpoint name if not provided
• Additional commits viewable in compare view

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