(Lianja) Simple REST Example

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

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loRest = createobject("CkRest")

// Connect to the REST server.
llBTls = .T.
lnPort = 443
llBAutoReconnect = .T.
llSuccess = loRest.Connect("www.alphavantage.co",lnPort,llBTls,llBAutoReconnect)
if (llSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    return
endif

// Get a stock quote:
// Sending GET request to https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=MSFT&apikey=my_api_key
llSuccess = loRest.AddQueryParam("function","TIME_SERIES_DAILY")
llSuccess = loRest.AddQueryParam("symbol","AAPL")
llSuccess = loRest.AddQueryParam("apikey","my_api_key")
lcResponseJson = loRest.FullRequestNoBody("GET","/query")
if (loRest.LastMethodSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    return
endif

? lcResponseJson

// 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"
//         }
//     }
// }


release loRest