dart_nats 1.1.1

A Dart client for the NATS messaging system. Design to use with Dart and flutter.

1.1.1

• Fix defect #42: Ensure newInbox always appends a dot suffix (.) to inboxPrefix to conform to hierarchical NATS subject structures (_INBOX.> gateway callout authorization policy).
• Retain backward compatibility: Do not append double dots (..) if the prefix argument already ends with a dot.

1.1.0

• Add JetStream, Key-Value, and Object Store API enhancements and handle-based classes:
  • Introduce JsStream class wrapping JetStream stream operations (info, purge, consumer, createConsumer).
  • Introduce generic Consumer<T> class with fetch (for pull batching) and messages() (stream for push deliver or continuous pull polling in the background).
  • Introduce AccountInfo API mapping JetStream tier resource usage and account details.
  • Add support for numReplicas and maxAge properties in StreamConfig.
  • Support flexible payload publishing using publishPayload<T> on the JetStream class.
• Key-Value Store API updates:
  • Add create and update methods supporting optimistic concurrency control (via PubOpts).
  • Add getRevision to retrieve historical values.
  • Support tracking and emitting key-value entry operations (KeyValueOp like put, delete, and purge).
  • Filter out deleted and purged keys automatically in KeyValue.get().
• Object Store API updates:
  • Introduce ObjectStoreConfig supporting replicas, maxBytes, and ttl.
  • Add addLink and addBucketLink methods to align with standard NATS conventions (aliasing/replacing old putLink and putBucketLink).
  • Update list() to correctly track tombstones and filter deleted object metadata.
  • Add helper methods putBytes and getBytes.
• Performance and refactoring improvements:
  • Optimize NATS protocol parser by replacing dynamic List growth/sublisting with direct byte processing on a manual buffer manager.
  • Clean up and document API definitions, including configuration options, exception models, and platform stubs.

1.0.0

• Add NATS JetStream Support (Stream/Consumer management, Publish/Subscribe, Pull mode with Ack/Nak/Term)
• Add NATS Key-Value (KV) Store (Put, Get, Delete, Purge, Watch)
• Add NATS Object Store (128 KiB chunking, automatic SHA-256 validation)

0.6.5

• Issue resolved when app is in background. Thanks nileshsoni97 for contribution.

0.6.4

• Fix Uint8List and List

0.6.3

• fix Exposing Security Context#31.
• Fix missing headers in request response.

0.6.2

• fix a bug that does not correctly parse headers containing the ':' character. Thank https://github.com/CoryHagerman for contribution.

0.6.1

• fix nkeys decode issue

0.6.0

• Support verbos acknowledge
• Chang pub, pubString to async
• Header support (hpub and hmsg)

0.5.1

• Add retry

0.5.0

• Add nkeys publicKey privateKey functions
• Revamp rqeust
• Custom inbox prefix
• Inbound structure data

0.4.9

• fix #22 error when connect to nats://demo.nats.io

0.4.8

• fix #23 Unsupported operation: Platform._version with WebSocket

0.4.7

• add generic type to client.request()
• fix reconnect issue
• fix retry issue

0.4.6

• fix bug #16 Connect to invalid ws connection does not give error

0.4.5

• fix bug wss: connecting bug

0.4.4

• fix bug #20 larger MSG payloads not always working, check if full payload present in buffer

0.4.2

• TLS support

0.4.1

• fix wss://host:port

0.4.0

• client.connect() support with url schema example ws://host:port or nats://nost:port
• tls:// not support yet
• discontinue client.tcpConnect()
• add nkey authentication
• add jwt authentication

0.3.5

• Update readme

0.3.4

• Support TCP socket as 0.2.x by client.tcpConnect()

0.3.3

• Update package dependencies

0.3.2

• Fix flutter web Nuid() error

0.3.1

• Add statusStream
• Add request timeout

0.3.0

• Change transport from socket to WebSock
• Support Flutter Web

0.2.0

• Add user passwor authentication
• Add token authentication
• Convert to Null safety
• Dart SDK version 2.12.0 - 3.0.0
• fix inbox security

0.1.8

• fix request error on second request

0.1.7

• add async support for ping()
• add message.respondString

0.1.6+1

• Improve receive buffer handling

0.1.6

• async connect
• fix defect message delay when sub receive continuous message

0.1.5+1

• fix defect

0.1.5

• request/respond function
• change some wording from payload to data

0.1.4+1

• add inbox to generate unique inbox subject
• add nuid to generate unique id

0.1.3+4

• refactor code
• add commend

0.1.3+1

• add string api client.pubString and message.string
• fix defect: pub sub non ascii
• fix defect: message include \r or \n
• revamp message decoding

0.1.2

• change api from string to byte array

0.1.1

• publish can be buffered.

0.1.0+4

• Update sample code

0.1.0+3

• Update sample code

0.1.0+2

• Update readme

0.1.0+1

• Add readme

0.0.2+1

• Add change log

0.0.2

• Refactor code

0.0.1

• Initial experimental version