module mq

message queue module

object

Message

Create a message object, seeMessage

1
Message mq.Message;

---

HttpHandler

Createhttpprotocol handler object, seeHttpHandler

1
HttpHandler mq.HttpHandler;

---

Handler

Create a message handler object, pass the value of the built-in handler and return it directly

1
Handler mq.Handler;

Return result:

• Returns the handler that encapsulates the handler function

hdlr accepts built-in message handlers, handler functions, chained processing arrays, and route objects:

• Function javascript function, which will be used for processing
• HandlerBuilt-in processor, which will be used for processing
• Chaining arrays is equivalent to returning newmq.Chain(hdlr), seeChain
• Route object, equivalent to returning newmq.Routing(hdlr), seeRouting

The syntax of the message handler function is as follows:

1
function func(v) {}

The parameter v is the message being processed, and there are four types of returned results:

• Function javascript function that will be used for the next stage of processing
• HandlerBuilt-in processor, which will be used for the next stage of processing
• Chaining arrays, equivalent to newmq.Chain(v), seeChain
• routing object, equivalent to newmq.Routing(v), seeRouting

No return or other return results will end message processing.

---

Chain

Create a message handler chain processing object, seeChain

1
Chain mq.Chain;

---

Routing

Create a message handler route object, seeRouting

1
Routing mq.Routing;

static function

nullHandler

Create an empty handler object, and the secondary handler object returns directly without any processing

1
static Handler mq.nullHandler();

Return result:

• Handler, returns an empty handler

---

invoke

Process a message or object using the given handler

1
2
static mq.invoke(Handler hdlr,
    object v) async;

Call parameters:

• hdlr:Handler, specifies the processor to use
• v:object, specifies the message or object to process

Unlike the handler's invoke method, this method will loop through each handler's return handler until the handler returns null.