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August 29, 2015 14:04
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NSString *textString = @"APPL"; | |
NSString *query = [NSString stringWithFormat:@"select * from yahoo.finance.quotes where symbol in (\"%@\")", textString]; | |
NSString *escapedStoreUrl = [@"store://datatables.org/alltableswithkeys" stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]]; | |
NSString *escapedQuery = [query stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]]; | |
NSString *urlString = [NSString stringWithFormat:@"http://query.yahooapis.com/v1/public/yql?q=%@&env=%@&format=json", escapedQuery, escapedStoreUrl]; | |
NSMutableURLRequest *mutableRequestGET = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:urlString]]; | |
[mutableRequestGET setHTTPMethod:@"GET"]; | |
NSData *dataResponse = [NSURLConnection sendSynchronousRequest:mutableRequestGET returningResponse:nil error:nil]; | |
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ | |
NSError *error; | |
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:dataResponse options:kNilOptions error:&error]; | |
// Enumerate through JSON | |
NSDictionary *productSets = [[[json objectForKey:@"query"] objectForKey:@"results"] objectForKey:@"quote"]; | |
/* If you want to get one key independently, replace the id | |
* of objectForKey with "symbol", "AverageDailyVolume", etc. | |
* (and uncomment the line below.!) | |
*/ | |
//NSString *lastTradeDate = [productSets objectForKey:@"LastTradeDate"]; | |
for (NSString *sub in productSets) { | |
NSLog(@"%@: %@",sub,[productSets objectForKey:sub]); | |
} | |
dispatch_async(dispatch_get_main_queue(), ^{ | |
// Update UI accordingly with data from above. | |
}); | |
}); |
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