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dean

v0.1.2

Published

Proxy routing table with cluster support

Downloads

6

Readme

dean

Build Status

Author

Evan Lucas

License

MIT

Installation

$ npm install -g dean

Tests

$ npm test

Coverage

$ npm run cover

API

Dean

Constructor

opts can contain the following:

| Key | Description | | --- | ----- | | key | The session id (connect.sid) can also pass session-key | | bindAddress | The ip to bind (0.0.0.0) | | port | The listening port (8040) | | https | https options (key, cert) | | timeout | Proxy timeout (0) | | max-sockets | Max number of sockets for the http agent | | redis | Object containing redis options (port, host, socket, db) | | trace | jstrace instance |

redis note: the redis key can also contain a redisClient. This should be an instance of redis.createClient. redis.socket will take priority over redis.host and redis.port.

Params

| Name | Type(s) | Description | | ---- | ------- | ----------- | | opts | Object | The options |


Dean.listen()

Listen for requests

Examples:

// just a callback
dean.listen(function() {
  console.log('listening on port', dean.port)
})

// with a port
dean.listen(8044, function() {
  console.log('listening on port', 8044)
})

// with a port and host
dean.listen(8044, '127.0.0.1', function() {
  console.log('listening at', '127.0.0.1:8044')
})
Params

| Name | Type(s) | Description | | ---- | ------- | ----------- | | port | Number | The port on which we should listen (optional) | | host | String | The bindAddress (optional) | | cb | Function | function() |


Dean.close()

Closes the server and stops accepting requests

Params

| Name | Type(s) | Description | | ---- | ------- | ----------- | | cb | Function | function() |


Dean.addDrone()

Adds a new drone to the rotation

Example

// all of the following will be accepted
// '0.0.0.0:4043'
dean.addDrone('0.0.0.0:4043')
dean.addDrone('4043')
dean.addDrone(4043)
dean.addDrone({
  port: 4043
, host: '0.0.0.0'
})
Params

| Name | Type(s) | Description | | ---- | ------- | ----------- | | drone | String, Object, Number | The drone to add |


Dean.removeDrone()

Removes a drone from the rotation

Example

dean.removeDrone('0.0.0.0:4043')
Params

| Name | Type(s) | Description | | ---- | ------- | ----------- | | drone | String | The drone to remove |


Instrumentation

Instrumentation is optional via jstrace.

The following probes are exposed:

  • dean:proxy:web:start
    • target will be the request's target
    • method will be the request method
    • url will be the request url
  • dean:proxy:web:end
    • target will be the request's target
    • method will be the request method
    • url will be the request url
    • duration will be the duration of the request in ms
  • dean:drone:add
    • drone will be the added drone
  • dean:drone:remove
    • drone will be the removed drone

An example script has been provided at ./scripts/trace.js. To test it out:

$ jstrace ./scripts/trace.js

# Then in another terminal
$ npm test