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(Unicode C) Firebase PATCH - Updating DataUses the PATCH method to update record with new information. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:
#include <C_CkFileAccessW.h> #include <C_CkRestW.h> #include <C_CkAuthGoogleW.h> #include <C_CkJsonObjectW.h> void ChilkatSample(void) { HCkFileAccessW fac; const wchar_t *accessToken; HCkRestW rest; BOOL success; HCkAuthGoogleW authGoogle; HCkJsonObjectW pigNameUpdate; const wchar_t *jsonResponse; // Uses the PATCH method to update a Firebase record. // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example assumes a JWT authentication token, if required, has been previously obtained. // See Get Firebase Access Token from JSON Service Account Private Key for sample code. // Load the previously obtained Firebase access token into a string. fac = CkFileAccessW_Create(); accessToken = CkFileAccessW_readEntireTextFile(fac,L"qa_data/tokens/firebaseToken.txt",L"utf-8"); if (CkFileAccessW_getLastMethodSuccess(fac) != TRUE) { wprintf(L"%s\n",CkFileAccessW_lastErrorText(fac)); CkFileAccessW_Dispose(fac); return; } rest = CkRestW_Create(); // Make the initial connection (without sending a request yet). // Once connected, any number of requests may be sent. It is not necessary to explicitly // call Connect before each request. success = CkRestW_Connect(rest,L"chilkat.firebaseio.com",443,TRUE,TRUE); if (success != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkFileAccessW_Dispose(fac); CkRestW_Dispose(rest); return; } authGoogle = CkAuthGoogleW_Create(); CkAuthGoogleW_putAccessToken(authGoogle,accessToken); CkRestW_SetAuthGoogle(rest,authGoogle); // Chilkat's sample data (pig-rescue data) is publicly readable at: https://chilkat.firebaseio.com/.json // This data is publicly readable, but not writable. You'll need to // run against your own database.. // We're going to update "Molly II" to "Molly III" pigNameUpdate = CkJsonObjectW_Create(); CkJsonObjectW_AppendString(pigNameUpdate,L"name",L"Molly III"); // The string content of the last arg passed is {"name":"Molly III"} jsonResponse = CkRestW_fullRequestString(rest,L"PATCH",L"/pig-rescue/animal/-KI3bD-FU_Dake7sYOiP.json",CkJsonObjectW_emit(pigNameUpdate)); if (CkRestW_getLastMethodSuccess(rest) != TRUE) { // Something happened in the communications (either no request was sent, or no response was received. // (The Chilkat REST API also has lower-level methods where an app can send the request in one call, // and then receive the response in another call.) wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkFileAccessW_Dispose(fac); CkRestW_Dispose(rest); CkAuthGoogleW_Dispose(authGoogle); CkJsonObjectW_Dispose(pigNameUpdate); return; } // Check the response status code. A 200 response status indicates success. if (CkRestW_getResponseStatusCode(rest) != 200) { wprintf(L"%s\n",CkRestW_responseStatusText(rest)); wprintf(L"%s\n",jsonResponse); wprintf(L"Failed.\n"); CkFileAccessW_Dispose(fac); CkRestW_Dispose(rest); CkAuthGoogleW_Dispose(authGoogle); CkJsonObjectW_Dispose(pigNameUpdate); return; } // When successful, the response contains the data written. wprintf(L"%s\n",jsonResponse); wprintf(L"Success.\n"); CkFileAccessW_Dispose(fac); CkRestW_Dispose(rest); CkAuthGoogleW_Dispose(authGoogle); CkJsonObjectW_Dispose(pigNameUpdate); } |
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