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Mini Shell
Mini Shell
module.exports = {
/**
* Expose an action/function triggerable via PM2 or PM2.io
* @memberof TX2
* @param {string} action_name Name of the action
* @param {object} [opts] Optional parameter
* @param {function} fn Function to be called
*
* @example <caption>Action without arguments</caption>
* tx2.action('run_query', (cb) => {
* cb({ success: true })
* })
* @example <caption>Action with arguments</caption>
* tx2.action('run_query', arg1, (cb) => {
* cb({ success: arg1 })
* })
*/
action(action_name, opts, fn) {
if (!fn) {
fn = opts
opts = null
}
if (!action_name)
return console.error('[PMX] action.action_name is missing')
if (!fn)
return console.error('[PMX] emit.data is mission')
// Notify the action
this.send({
type : 'axm:action',
data : {
action_name : action_name,
opts : opts,
arity : fn.length
}
})
let reply = (data) => {
if (data.length) {
data._length = data.length
delete data.length
}
this.send({
type : 'axm:reply',
data : {
return : data,
action_name : action_name
}
})
}
process.on('message', (data) => {
if (!data) return false
// Notify the action
if (data && (data == action_name || data.msg == action_name))
this.event('action triggered', { action_name, opts })
// In case 2 arguments has been set but no options has been transmitted
if (fn.length === 2 && typeof(data) === 'string' && data === action_name)
return fn({}, reply)
// In case 1 arguments has been set but options has been transmitted
if (fn.length === 1 && typeof(data) === 'object' && data.msg === action_name)
return fn(reply)
/**
* Classical call
*/
if (typeof(data) === 'string' && data === action_name)
return fn(reply)
/**
* If data is an object == v2 protocol
* Pass the opts as first argument
*/
if (typeof(data) === 'object' && data.msg === action_name)
return fn(data.opts, reply)
})
}
}
Zerion Mini Shell 1.0