Some are simple functions answering a direct value.
Some are external calls to various sources, and give an asynchronous answer.
In this case your Sensor needs to have a special Input function.
1 - you call the library for an external query.
2 - the library finds the info.
3 - the library calls the Input function inside your Sensor injecting the requested data inside an array.
4 - your Input function has now all you needed and will trigger other functions inside the Sensor instance
the Input function inside your Sensor
| Custom.prototype.Input=function(arr,key){ } | |
arr - the array containing the requested info
key - a string value used to identify the answer
all calls to a lib usually contain a key, the key is then sent back to Input, so you can recognise the call.
getPoloniexPair(pair,amount,key,id)
An example call to a lib from a Sensor, the lib calls the internet and sends back an array of data to Input
getPoloniexPair("BTC_ETH",5,"QUESTION 1",this.id);
now the lib calls the internet
...
after a while Input is triggered
| Custom.prototype.Input=function(arr,key){ // arr now contains informations about Bitcoin and Ethereum // key now = "QUESTION 1" } Wherever you are, you may be interested in calling that Input function, that belongs to a specific Sensor, and in passing it some informations, so you need the id of the Sensor: Sensor[id].Input(your_arr,"your_key"); This is why when you call a lib, usually you have to pass to it the id of the calling Instance, so the system can call you back at the right location. All Libraries are listed here: |
