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(Unicode C) Send GMail with AttachmentsDemonstrates how to send an email containing attachments using the GMail REST API.
#include <C_CkEmailW.h> #include <C_CkStringBuilderW.h> #include <C_CkHttpW.h> #include <C_CkHttpResponseW.h> void ChilkatSample(void) { BOOL success; HCkEmailW email; const wchar_t *cid; HCkStringBuilderW sbHtml; int numReplacements; const wchar_t *mimeType; HCkStringBuilderW sbMime; HCkHttpW http; const wchar_t *url; BOOL sendGzipped; HCkHttpResponseW resp; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Use the Chilkat Email API to create or load an email. email = CkEmailW_Create(); // The From name/address don't need to be specified. // GMail will automatically use your Gmail address if the following 2 lines are omitted. CkEmailW_putFromName(email,L"My Name"); CkEmailW_putFromAddress(email,L"my_account_name@gmail.com"); CkEmailW_AddTo(email,L"John Smith",L"somebody@somewhere.com"); // To add more recipients, make additional calls to AddTo or AddCC, one per recipient... CkEmailW_putSubject(email,L"This is a test GMail email created using Chilkat."); CkEmailW_putCharset(email,L"utf-8"); CkEmailW_AddPlainTextAlternativeBody(email,L"This is a test"); // Create an HTML email body with an embedded image. cid = CkEmailW_addRelatedFile(email,L"qa_data/jpg/starfish.jpg"); sbHtml = CkStringBuilderW_Create(); CkStringBuilderW_Append(sbHtml,L"<html><body>This is a <b>test</b><br><img src=\"cid:STARFISH_CID\"/></body></html>"); numReplacements = CkStringBuilderW_Replace(sbHtml,L"STARFISH_CID",cid); CkEmailW_AddHtmlAlternativeBody(email,CkStringBuilderW_getAsString(sbHtml)); // Add some attachments.. mimeType = CkEmailW_addFileAttachment(email,L"qa_data/helloWorld.pdf"); if (CkEmailW_getLastMethodSuccess(email) != TRUE) { wprintf(L"Failed to add PDF attachment.\n"); CkEmailW_Dispose(email); CkStringBuilderW_Dispose(sbHtml); return; } mimeType = CkEmailW_addFileAttachment(email,L"qa_data/msword/sample2.docx"); if (CkEmailW_getLastMethodSuccess(email) != TRUE) { wprintf(L"Failed to add MS-Word attachment.\n"); CkEmailW_Dispose(email); CkStringBuilderW_Dispose(sbHtml); return; } // OK.. we now have an HTML email with 2 attachments.. sbMime = CkStringBuilderW_Create(); CkEmailW_GetMimeSb(email,sbMime); // Send the email. (GMail has a 5MB limit on the total email size.) http = CkHttpW_Create(); CkHttpW_putAuthToken(http,L"GMAIL-ACCESS-TOKEN"); // Send using the simple upload request for the Gmail API url = L"https://www.googleapis.com/upload/gmail/v1/users/me/messages/send?uploadType=media"; sendGzipped = TRUE; resp = CkHttpW_PTextSb(http,L"POST",url,sbMime,L"utf-8",L"message/rfc822",FALSE,sendGzipped); if (CkHttpW_getLastMethodSuccess(http) != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkEmailW_Dispose(email); CkStringBuilderW_Dispose(sbHtml); CkStringBuilderW_Dispose(sbMime); CkHttpW_Dispose(http); return; } // A status code of 200 indicates success. wprintf(L"Response status code: %d\n",CkHttpResponseW_getStatusCode(resp)); wprintf(L"Response body:\n"); wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp)); CkHttpResponseW_Dispose(resp); // The response body contains JSON. // Use the online tool at Generate JSON Parsing Code // to generate JSON parsing code. // A sample successful JSON response: // { // "id": "166f0d4ac39e50bf", // "threadId": "166f0d4ac39e50bf", // "labelIds": [ // "SENT" // ] // } CkEmailW_Dispose(email); CkStringBuilderW_Dispose(sbHtml); CkStringBuilderW_Dispose(sbMime); CkHttpW_Dispose(http); } |
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