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(Unicode C) Simple REST ExampleDemonstrates a very simple RESTful API call to get a stock time series daily (quotes) from Alpha Vantage.
#include <C_CkRestW.h> void ChilkatSample(void) { HCkRestW rest; BOOL bTls; int port; BOOL bAutoReconnect; BOOL success; const wchar_t *responseJson; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. rest = CkRestW_Create(); // Connect to the REST server. bTls = TRUE; port = 443; bAutoReconnect = TRUE; success = CkRestW_Connect(rest,L"www.alphavantage.co",port,bTls,bAutoReconnect); if (success != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkRestW_Dispose(rest); 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 = CkRestW_AddQueryParam(rest,L"function",L"TIME_SERIES_DAILY"); success = CkRestW_AddQueryParam(rest,L"symbol",L"AAPL"); success = CkRestW_AddQueryParam(rest,L"apikey",L"my_api_key"); responseJson = CkRestW_fullRequestNoBody(rest,L"GET",L"/query"); if (CkRestW_getLastMethodSuccess(rest) != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkRestW_Dispose(rest); return; } wprintf(L"%s\n",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" // } // } // } CkRestW_Dispose(rest); } |
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