Can't print google's vision API results to app screen - swift

Question

I'm using Google's Vision API to identify certain features in an image. I have the Logo Detection working as the logo comes up in my terminal, but I can't get it to appear on my app screen. It continually prints "No logos found" - here's my code :
//Get logo annotations
let logoAnnotations: JSON = logoResponses["logoAnnotations"]
let numLogos: Int = logoAnnotations.count
var logos: Array<String> = []
if numLogos > 0 {
var allResultsText:String = "Logos: "
for index in 0..<numLogos {
let logo = logoAnnotations[index]["logo"].stringValue
logos.append(logo)
}
for logo in logos {
if logos[logos.count - 1] != logo {
allResultsText += "\(logo), "
} else {
allResultsText += "\(logo)."
}
}
self.allResults.text = allResultsText
} else {
self.allResults.text = "No logos found"
}
}
This is the JSON response I'm getting:
[
{
"boundingPoly": {
"vertices": [
{
"x": 210,
"y": 139
},
{
"x": 229,
"y": 139
},
{
"x": 229,
"y": 179
},
{
"x": 210,
"y": 179
}
]
},
"mid": "/m/04lg33",
"score": 0.18314756,
"description": "Ralph Lauren Corporation"
}
]
How am I to access the value returned for the logo description, this case Ralph Lauren Corporation?

Answer 1

I corrected the issue in my code. Here is the functioning code for anyone that needs it:
let logoAnnotations: JSON = responses["logoAnnotations"]
let numLogos: Int = logoAnnotations.count
var logos: Array<String> = []
if numLogos > 0 {
var logoResultsText:String = " ,"
for index in 0..<numLogos {
let logo = logoAnnotations[index]["description"].stringValue
logos.append(logo)
}
for logo in logos {
if logos[logos.count - 1] != logo {
logoResultsText += ", \(logo), "
} else {
logoResultsText += "\(logo)."
}
}
self.logoResults.text = logoResultsText
} else {
self.logoResults.text = ""
}
I was calling the incorrect index from the logoAnnotations array.