[bugfix] Reading of message annotations (#182)

* Fix on reading of message annotations

* Remove unused test

* Fix broken test

---------

Co-authored-by: magne <magnello@coders51.com>

src/amqp10/decoder.ts

@@ -23,6 +23,7 @@ export const FormatCode = {
   Map32: 0xd1,
   Null: 0x40,
   ULong0: 0x44,
+  Ubyte: 0x50,
   SmallUlong: 0x53,
   ULong: 0x80,
   Uint: 0x70,

src/amqp10/encoder.ts

@@ -1,6 +1,13 @@
 import { inspect } from "node:util"
 import { isDate } from "node:util/types"
-import { Message, MessageApplicationProperties, MessageProperties } from "../publisher"
+import {
+  AmqpByte,
+  Message,
+  MessageAnnotations,
+  MessageAnnotationsValue,
+  MessageApplicationProperties,
+  MessageProperties,
+} from "../publisher"
 import { DataWriter } from "../requests/data_writer"
 
 const FormatCodeType = {
@@ -23,6 +30,7 @@ const FormatCode = {
   Null: 0x40,
   SmallUlong: 0x53,
   Uint: 0x70,
+  Ubyte: 0x50,
   Int: 0x71,
   Timestamp: 0x83,
 } as const
@@ -35,14 +43,14 @@ const PropertySizeDescription =
 
 type MessageApplicationPropertiesList = { key: string; value: string | number }[]
 
-type MessageAnnotationsList = { key: string; value: string | number }[]
+type MessageAnnotationsList = { key: string; value: MessageAnnotationsValue }[]
 
 export function amqpEncode(
   writer: DataWriter,
   { content, messageProperties, applicationProperties, messageAnnotations }: Message
 ): void {
   writer.writeUInt32(messageSize({ content, messageProperties, applicationProperties, messageAnnotations }))
-  writeMessageAnnotations(writer, toList(messageAnnotations))
+  writeMessageAnnotations(writer, toAnnotationsList(messageAnnotations))
   writeProperties(writer, messageProperties)
   writeApplicationProperties(writer, toList(applicationProperties))
   writeContent(writer, content)
@@ -53,7 +61,7 @@ export function messageSize({ content, messageProperties, applicationProperties,
     lengthOfContent(content) +
     lengthOfProperties(messageProperties) +
     lengthOfApplicationProperties(toList(applicationProperties)) +
-    lengthOfMessageAnnotations(toList(messageAnnotations))
+    lengthOfMessageAnnotations(toAnnotationsList(messageAnnotations))
   )
 }
 
@@ -121,7 +129,11 @@ function writeMessageAnnotations(writer: DataWriter, messageAnnotationsList: Mes
     .filter((elem) => elem.key)
     .forEach((elem) => {
       amqpWriteString(writer, elem.key)
-      typeof elem.value === "string" ? amqpWriteString(writer, elem.value) : amqpWriteIntNumber(writer, elem.value)
+      if (elem.value instanceof AmqpByte) {
+        amqpWriteByte(writer, elem.value)
+      } else {
+        typeof elem.value === "string" ? amqpWriteString(writer, elem.value) : amqpWriteIntNumber(writer, elem.value)
+      }
     })
 }
 
@@ -188,8 +200,12 @@ function getPropertySize(properties: MessageProperties): number {
   )
 }
 
-function getListSize(list: MessageApplicationPropertiesList | MessageAnnotationsList): number {
-  return list.reduce((sum, elem) => sum + getSizeOf(elem.key) + getSizeOf(elem.value), 0)
+function getListSize(list: MessageAnnotationsList): number {
+  return list.reduce(
+    (sum: number, elem: { key: string; value: MessageAnnotationsValue }) =>
+      sum + getSizeOf(elem.key) + getSizeOf(elem.value),
+    0
+  )
 }
 
 function amqpWriteString(writer: DataWriter, data?: string): void {
@@ -242,6 +258,11 @@ function amqpWriteIntNumber(writer: DataWriter, data?: number): void {
   writer.writeInt32(data)
 }
 
+function amqpWriteByte(writer: DataWriter, data: AmqpByte): void {
+  writer.writeByte(FormatCode.Ubyte)
+  writer.writeByte(data.byteValue)
+}
+
 function amqpWriteBuffer(writer: DataWriter, data?: Buffer): void {
   if (!data || !data.length) {
     return amqpWriteNull(writer)
@@ -269,11 +290,15 @@ function amqpWriteDate(writer: DataWriter, date?: Date): void {
   writer.writeUInt64(BigInt(date.getTime()))
 }
 
-function getSizeOf(value?: string | Date | number | Buffer): number {
+function getSizeOf(value?: string | Date | number | Buffer | AmqpByte): number {
   if (!value) {
     return 1
   }
 
+  if (value instanceof AmqpByte) {
+    return 1 + 1
+  }
+
   if (typeof value === "string") {
     const count = Buffer.from(value).length
     return count <= 255 ? 1 + 1 + count : 1 + 4 + count
@@ -300,3 +325,10 @@ function toList(applicationProperties?: MessageApplicationProperties): MessageAp
     return { key: elem[0], value: elem[1] }
   })
 }
+
+function toAnnotationsList(annotations?: MessageAnnotations): MessageAnnotationsList {
+  if (!annotations) return []
+  return Object.entries(annotations).map((elem) => {
+    return { key: elem[0], value: elem[1] }
+  })
+}

src/publisher.ts

@@ -15,7 +15,24 @@ import { PublishRequestV2 } from "./requests/publish_request_v2"
 
 export type MessageApplicationProperties = Record<string, string | number>
 
-export type MessageAnnotations = Record<string, string | number>
+export type MessageAnnotations = Record<string, MessageAnnotationsValue>
+
+export type MessageAnnotationsValue = string | number | AmqpByte
+
+export class AmqpByte {
+  private value: number
+
+  constructor(value: number) {
+    if (value > 255 || value < 0) {
+      throw new Error("Invalid byte, value must be between 0 and 255")
+    }
+    this.value = value
+  }
+
+  public get byteValue() {
+    return this.value
+  }
+}
 
 export interface MessageProperties {
   contentType?: string
@@ -54,7 +71,7 @@ export interface Message {
 export interface MessageOptions {
   messageProperties?: MessageProperties
   applicationProperties?: Record<string, string | number>
-  messageAnnotations?: Record<string, string | number>
+  messageAnnotations?: Record<string, MessageAnnotationsValue>
 }
 
 export interface Publisher {

src/response_decoder.ts

@@ -411,6 +411,9 @@ export function decodeFormatCode(dataResponse: DataReader, formatCode: number, s
       return dataResponse.readUInt32()
     case FormatCode.SmallUlong:
       return dataResponse.readInt8() // Read a SmallUlong
+    case FormatCode.Ubyte:
+      dataResponse.forward(1)
+      return dataResponse.readUInt8()
     case FormatCode.ULong:
       return dataResponse.readUInt64() // Read an ULong
     case FormatCode.List0:

test/e2e/declare_consumer.test.ts

@@ -1,13 +1,19 @@
 import { expect } from "chai"
+import { randomUUID } from "crypto"
+import { readFileSync } from "fs"
+import path from "path"
 import { Client, Publisher } from "../../src"
 import {
+  AmqpByte,
   Message,
   MessageAnnotations,
   MessageApplicationProperties,
-  MessageProperties,
   MessageHeader,
+  MessageProperties,
 } from "../../src/publisher"
 import { Offset } from "../../src/requests/subscribe_request"
+import { BufferDataReader } from "../../src/response_decoder"
+import { getMaxSharedConnectionInstances, range } from "../../src/util"
 import {
   createClient,
   createConsumer,
@@ -16,20 +22,14 @@ import {
   createStreamName,
 } from "../support/fake_data"
 import { Rabbit, RabbitConnectionResponse } from "../support/rabbit"
-import { getMaxSharedConnectionInstances, range } from "../../src/util"
-import { BufferDataReader } from "../../src/response_decoder"
 import {
+  decodeMessageTesting,
   eventually,
   expectToThrowAsync,
-  username,
-  password,
-  createClassicPublisher,
-  decodeMessageTesting,
   getTestNodesFromEnv,
+  password,
+  username,
 } from "../support/util"
-import { readFileSync } from "fs"
-import path from "path"
-import { randomUUID } from "crypto"
 
 describe("declare consumer", () => {
   let streamName: string
@@ -241,32 +241,23 @@ describe("declare consumer", () => {
     await eventually(async () => expect(messageAnnotations).eql([annotations]))
   }).timeout(10000)
 
-  it("messageAnnotations are ignored by a classic driver", async () => {
+  it("messageAnnotations with bytes are read correctly", async () => {
     const messageAnnotations: MessageAnnotations[] = []
-    const annotations = createAnnotations()
-    const classicPublisher = await createClassicPublisher()
-    await classicPublisher.ch.assertQueue("testQ", {
-      exclusive: false,
-      durable: true,
-      autoDelete: false,
-      arguments: {
-        "x-queue-type": "stream", // Mandatory to define stream queue
-      },
-    })
-    classicPublisher.ch.sendToQueue("testQ", Buffer.from("Hello"), {
-      headers: {
-        messageAnnotations: annotations,
-      },
-    })
+    const annotations = { test: new AmqpByte(123) }
+    await rabbit.createStream("testQ")
+    await client.declareConsumer(
+      { stream: "testQ", offset: Offset.next(), consumerRef: "test" },
+      (message: Message) => {
+        messageAnnotations.push(message.messageAnnotations ?? {})
+      }
+    )
 
-    await client.declareConsumer({ stream: "testQ", offset: Offset.first() }, (message: Message) => {
-      messageAnnotations.push(message.messageAnnotations || {})
-    })
+    const testP = await client.declarePublisher({ stream: "testQ" })
+    await testP.send(Buffer.from("Hello"), { messageAnnotations: annotations })
 
     await eventually(async () => {
-      expect(messageAnnotations).not.eql([annotations])
-      await classicPublisher.ch.close()
-      await classicPublisher.conn.close()
+      const [messageAnnotation] = messageAnnotations
+      expect(messageAnnotation).to.eql({ test: 123 })
     })
   }).timeout(10000)