How to read an array with LLD from JSON with macros?

[galvcom]

Hello, no native English speaker here, I have an api that gives me data of two components that form one device, let say something like:

| ----------------------- |
|| component A ||
| ----------------------- | ====> API call ===> JSON response
|| component B ||
| ----------------------- |
Device A

So after some preprocessing in python I get the following json structure:

[
{
  "{#DEVICETYPE}": "a",
  "{#UTCTIMESTAMPNS}": #################,
  "{#DEVICEID}": "ID-#################",
 ...
 ...
  "{#ACTIVEALERTS}": [
    ##,
    ##,
    ##
  ],
  "{#LATLNG}": [
    Lat,
    Lng
  ]
},
{
  "{#DEVICETYPE}": "b",
  "{#UTCTIMESTAMPNS}": #################,
  "{#DEVICEID}": "ID-#################",
 ...
 ...
  "{#DEVICEAID}":  "ID-#################"
}​​
]

My first try was to add all data at once (component a and b) but this don't work, so i followed this method:
- First modify the output of python preprocessing to only send one component data at once.
- Use an item to catch all data of each component.
- Use discovery rule with the previous item to generate a host for each one of the components and assign them another template for discover each characteristic of the json and filter the response to match only the actual host id.

- In the template assigned to each new discovered host i have item prototypes that get the data using a script with the macro value (I know maybe this isn't the best method)

var test = JSON.parse(value);
var alarms = test.valor;
return alarms;​

- This work somehow but for the items that have an array in the json i can't get the array only the macro value.

- In the "cache" item i get the right value

Can anyone guide me to make this work?

In addition to this, I have the problem that the API generates multiple outputs for each component, but zabbix only gets the first match for each component. Is there a method to use the "additional" outputs as new data inputs on already created hosts? Or should I limit the data to the first occurrence in the preprocessing part?