Karate - filter a specific json key from response based on another static array - karate

Question

I have the following JSON response (reference name: "list") and
[
{
"key": "101",
"val": {
"portCall": {
"id": 12664978
},
"status": "in-port"
}
},
{
"key": "102",
"val": {
"portCall": {
"id": 12415798
},
"status": "in-port"
}
},
{
"key": "103",
"val": {
"status": "on-voyage",
"voyage": {
"id": "7kynv-7lq85"
}
}
},
{
"key": "104",
"val": {
"status": "on-voyage",
"voyage": {
"id": "7kynv-2385"
}
}
}
]
also, I have an array list of few key values, evImos = [101,102,104]
In that, I have to identify the first key in the "list" response that has status as "on-voyage". So, the result should be "104".
I have tried the following and I need some help to make it work. Any help would be appreciated.
* def function getFirst = function(evImos) { for (let num of evImos) { let results = list.filter(d => d["key"] === num && d["val"]["status"] === "on-voyage"); if(results.length === 1) { karate.log(num); return num; } } }
* list.forEach(getFirst(evImos))

Answer 1

I'll just give you one hint. This one line will convert the whole thing in to a form that is much easier for you to validate:
* def temp = {}
* list.forEach(x => temp[x.key] = x.val.status)
Which gives you:
{
"101": "in-port",
"102": "in-port",
"103": "on-voyage",
"104": "on-voyage"
}
Now you can do:
* def isOnVoyage = function(key){ return temp[key] == 'on-voyage' }
Also read this: https://stackoverflow.com/a/59162760/143475

Answer 2

Thanks, to #Peter.
Based on his hint, I just tweaked it a little bit to match my requirement and it worked for me.
Here is the working copy for anyone to refer in the future.
* def temp = {}
* list.forEach(x => temp[x.key] = x.val.status)
* def isOnVoyage = function(keys){ for (let key of keys) { if(temp[key] == 'on-voyage'){ karate.log(key); karate.set('num', key); break; }}}
* isOnVoyage(evImos)