Perl

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. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

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

my $rest = Chilkat2::Rest->new;

# Connect to the REST server.
my $bTls = 1;
my $port = 443;
my $bAutoReconnect = 1;
my $success = $rest->Connect('www.alphavantage.co', $port, $bTls, $bAutoReconnect);
if (!$success) {
    print $rest->LastErrorText, "\n";
    exit;
}

# 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', 'TIME_SERIES_DAILY');
$success = $rest->AddQueryParam('symbol', 'AAPL');
$success = $rest->AddQueryParam('apikey', 'my_api_key');
my $responseJson = $rest->FullRequestNoBody('GET', '/query');
if (!$rest->LastMethodSuccess) {
    print $rest->LastErrorText, "\n";
    exit;
}

print $responseJson, "\n";

# 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"
#         }
#     }
# }