在 Azure Service Bus 团队的帮助下，我找到了这个问题的解决方案(实际上，他们给了我这个解决方案).messageBody 的基本元素应该使用 AMQP 类型正确编码.

With help of Azure Service Bus team, I was able to find a solution to this problem (in fact, they gave me this solution). Essentially elements of messageBody should be properly encoded using AMQP types.

以下代码有效:

  var messageBody = {
    'from-sequence-number': client.types.wrap_long(1),
    'message-count': client.types.wrap_int(5)
  };

  const msg = {
    application_properties: {
      operation: 'com.microsoft:peek-message'
    },
    body: messageBody,
    reply_to: 'receiver-link'
  };