Objective-C

Simple REST Example

See more REST Examples

Demonstrates a very simple RESTful API call to get a stock time series daily (quotes) from Alpha Vantage. Objective-C

#import <CkoRest.h>
#import <NSString.h>

BOOL success = NO;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

CkoRest *rest = [[CkoRest alloc] init];

//  Connect to the REST server.
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
success = [rest Connect: @"www.alphavantage.co" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

//  Get a stock quote:
//  Sending GET request to https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=MSFT&apikey=my_api_key
success = [rest AddQueryParam: @"function" value: @"TIME_SERIES_DAILY"];
success = [rest AddQueryParam: @"symbol" value: @"AAPL"];
success = [rest AddQueryParam: @"apikey" value: @"my_api_key"];
NSString *responseJson = [rest FullRequestNoBody: @"GET" uriPath: @"/query"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

NSLog(@"%@",responseJson);

//  Sample response:
//  {
//      "Meta Data": {
//          "1. Information": "Daily Prices (open, high, low, close) and Volumes",
//          "2. Symbol": "AAPL",
//          "3. Last Refreshed": "2019-12-06",
//          "4. Output Size": "Compact",
//          "5. Time Zone": "US/Eastern"
//      },
//      "Time Series (Daily)": {
//          "2019-12-06": {
//              "1. open": "267.4800",
//              "2. high": "271.0000",
//              "3. low": "267.3000",
//              "4. close": "270.7100",
//              "5. volume": "25447644"
//          },
//          "2019-12-05": {
//              "1. open": "263.7900",
//              "2. high": "265.8900",
//              "3. low": "262.7300",
//              "4. close": "265.5800",
//              "5. volume": "18661343"
//          },
//          "2019-12-04": {
//              "1. open": "261.0700",
//              "2. high": "263.3100",
//              "3. low": "260.6800",
//              "4. close": "261.7400",
//              "5. volume": "16810388"
//          },
//  ...
//          "2019-07-18": {
//              "1. open": "204.0000",
//              "2. high": "205.8800",
//              "3. low": "203.7000",
//              "4. close": "205.6600",
//              "5. volume": "18582161"
//          }
//      }
//  }