I am using IBM Watson APIs - Alchemy Data news
The problem is, I am using swift - objective C bridging and in between I am stuck with the function that returns a value. How do I use that value in my objective C code?
Here is my swift class
@objc class alchemyNews : NSObject {
func getNewsList() -> NewsResponse {
let apiKey = "api-key"
let alchemyDataNews = AlchemyDataNews(apiKey: apiKey)
let start = "now-1d" // yesterday
let end = "now" // today
let query = [
"q.enriched.url.title": "O[IBM^Apple]",
"return": "enriched.url.title,enriched.url.entities.entity.text,enriched.url.entities.entity.type"
]
let failure = { (error: NSError) in print(error) }
alchemyDataNews.getNews(start, end: end, query: query, failure: failure) { news in
print(news)
}
let response : NewsResponse = alchemyDataNews.getNews(start, end: end) { news in
return news
}
return response
}
}
I want to have alchemyDataNews.getNews print value to be display. So I am calling this function in my Objective C class in this way.
@property (strong, nonatomic) AlchemyDataNews *getnews;
-(void)loadNews
{
self.getnews = [[AlchemyDataNews alloc]init];
[self.getnews getNewsList];
}
But what to do now? This will just call the function and not give me the response so that I can put it in array and display in tableview.
I think the issue is getNewsList
returns an instance of NewsResponse
, you should store it in a variable and then use it.
self.getnews = [[AlchemyDataNews alloc]init];
NewsResponse *newResponse = [self.getnews getNewsList];
// now you can use 'newResponse'
// ...
Hope that helped.