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(Unicode C) WhatsApp - Send a Text MessageDemonstrates how to use the messages endpoint to send text messages to your customers. For more information, see https://developers.facebook.com/docs/whatsapp/api/messages/text
#include <C_CkHttpW.h> #include <C_CkJsonObjectW.h> #include <C_CkHttpResponseW.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { HCkHttpW http; BOOL success; HCkJsonObjectW json; HCkHttpResponseW resp; HCkStringBuilderW sbResponseBody; HCkJsonObjectW jResp; int respStatusCode; const wchar_t *id; int i; int count_i; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http = CkHttpW_Create(); // Implements the following CURL command: // curl -X POST https://example.com/v1/messages \ // -H "Authorization: Bearer your-auth-token" \ // -d ' // { // "preview_url": false, // "recipient_type": "individual", // "to": "whatsapp-id-or-group-id", // "type": "text", // "text": { // "body": "your-text-message-content" // } // }' // Use the following online tool to generate HTTP code from a CURL command // Convert a cURL Command to HTTP Source Code // Use this online tool to generate code from sample JSON: // Generate Code to Create JSON // The following JSON is sent in the request body. // { // "preview_url": false, // "recipient_type": "individual", // "to": "whatsapp-id-or-group-id", // "type": "text", // "text": { // "body": "your-text-message-content" // } // } json = CkJsonObjectW_Create(); CkJsonObjectW_UpdateBool(json,L"preview_url",FALSE); CkJsonObjectW_UpdateString(json,L"recipient_type",L"individual"); CkJsonObjectW_UpdateString(json,L"to",L"whatsapp-id-or-group-id"); CkJsonObjectW_UpdateString(json,L"type",L"text"); CkJsonObjectW_UpdateString(json,L"text.body",L"your-text-message-content"); // Adds the "Authorization: Bearer your-auth-token" header. CkHttpW_putAuthToken(http,L"your-auth-token"); resp = CkHttpW_PostJson3(http,L"https://example.com/v1/messages",L"application/json",json); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkHttpW_Dispose(http); CkJsonObjectW_Dispose(json); return; } sbResponseBody = CkStringBuilderW_Create(); CkHttpResponseW_GetBodySb(resp,sbResponseBody); jResp = CkJsonObjectW_Create(); CkJsonObjectW_LoadSb(jResp,sbResponseBody); CkJsonObjectW_putEmitCompact(jResp,FALSE); wprintf(L"Response Body:\n"); wprintf(L"%s\n",CkJsonObjectW_emit(jResp)); respStatusCode = CkHttpResponseW_getStatusCode(resp); wprintf(L"Response Status Code = %d\n",respStatusCode); if (respStatusCode >= 400) { wprintf(L"Response Header:\n"); wprintf(L"%s\n",CkHttpResponseW_header(resp)); wprintf(L"Failed.\n"); CkHttpResponseW_Dispose(resp); CkHttpW_Dispose(http); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbResponseBody); CkJsonObjectW_Dispose(jResp); return; } CkHttpResponseW_Dispose(resp); // Sample JSON response: // (Sample code for parsing the JSON response is shown below) // { // "messages": [ // { // "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU" // } // ] // } // Sample code for parsing the JSON response... // Use the following online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat. // See this example explaining how this memory should be used: const char * functions. i = 0; count_i = CkJsonObjectW_SizeOfArray(jResp,L"messages"); while (i < count_i) { CkJsonObjectW_putI(jResp,i); id = CkJsonObjectW_stringOf(jResp,L"messages[i].id"); i = i + 1; } CkHttpW_Dispose(http); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbResponseBody); CkJsonObjectW_Dispose(jResp); } |
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