How to join Json response element - arrays

Question

I am making a call to the OpenWeatherApi am facing a dilemma. I am pulling the response, but only need specific data elements. I am successfully pulling certain elements, but am having trouble pulling the CITY element.
This is the response from the API call:
{
"coord": {
"lon": -122.4,
"lat": 45.64
},
"weather": [
{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}
],
"base": "stations",
"main": {
"temp": 287.5,
"pressure": 1022,
"humidity": 82,
"temp_min": 284.25,
"temp_max": 289.25
},
"visibility": 16093,
"wind": {
"speed": 0.96,
"deg": 10.5029
},
"clouds": {
"all": 1
},
"dt": 1537854780,
"sys": {
"type": 1,
"id": 2321,
"message": 0.0172,
"country": "US",
"sunrise": 1537884050,
"sunset": 1537927234
},
"id": 420040945,
"name": "Vancouver",
"cod": 200
}
This is my mapping for the specific elements I need:
const main = response.data["main"]
const sys = response.data["sys"]
const city = response.data.name;
const weather = response.data["weather"][0]
const data = Object.assign(main, weather, sys, city)
res.send(data)
console.log(data)
Finally, this is the response from my mapping:
{
"0": "C",
"1": "i",
"2": "n",
"3": "c",
"4": "i",
"5": "n",
"6": "n",
"7": "a",
"8": "t",
"9": "i",
"temp": 293.74,
"pressure": 1018,
"humidity": 90,
"temp_min": 293.15,
"temp_max": 294.25,
"id": 2179,
"main": "Rain",
"description": "light rain",
"icon": "10n",
"type": 1,
"message": 0.0044,
"country": "US",
"sunrise": 1537874932,
"sunset": 1537918192
}
As you can see, CITY is split up into separate elements. If I only pull CITY, it pulls the accurate City just fine, as
"Cincinnati"
not
"name": "Cincinnati".
How can I join the elements for form the city, or recreate the "name": "City" element altogether?

Answer 1

you are getting wrong result because city is an array and its getting spread. change your code to below code
Object.assign({}, main, weather, sys, {city})
or
Object.assign({}, main, weather, sys, {name:city})
Solution is to convert array value to object property.