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(Unicode C) Outlook Send HTML Email with Embedded Images and AttachmentsThis example sends an HTML email with both embedded images and attachments. Other examples exist for:
This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com
#include <C_CkHttpW.h> #include <C_CkStringBuilderW.h> #include <C_CkBinDataW.h> #include <C_CkJsonObjectW.h> #include <C_CkHttpResponseW.h> void ChilkatSample(void) { HCkHttpW http; BOOL bCrlf; HCkStringBuilderW sbHtmlBody; HCkBinDataW jpgStarfish; HCkBinDataW jpgHedgeHogs; HCkBinDataW attach1; HCkBinDataW attach2; HCkJsonObjectW json; HCkHttpResponseW resp; // Important: This example requires Chilkat v9.5.0.68 or greater. // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http = CkHttpW_Create(); // Use your previously obtained access token here: // See the following examples for getting an access token: // Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint). // Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint). // Refresh Access Token (Azure AD v2.0 Endpoint). // Refresh Access Token (Azure AD Endpoint). CkHttpW_putAuthToken(http,L"MICROSOFT_GRAPH_ACCESS_TOKEN"); // To send mail, we'll POST to the following endpoint: // // POST /users/{id | userPrincipalName}/sendMail // // (The special keyword "me" may be used in place of a principal name.) // // This example will send HTML email containing the following HTML body. // After the // <html> // <head> // <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> // <meta content="text/html; charset=utf-8"> // </head> // <body bgcolor="#FFFFFF"> // <font face="Calibri">This is a test <b>HTML email with embedded images</b>.<br> // <br> // <img alt="" src="cid:starfish"><br> // <img alt="" src="cid:hedgehogs"><br> // </font> // </body> // </html> // Build the HTML body... bCrlf = TRUE; sbHtmlBody = CkStringBuilderW_Create(); CkStringBuilderW_AppendLine(sbHtmlBody,L"<html>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<head>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<meta content=\"text/html; charset=utf-8\">",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"</head>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<body bgcolor=\"#FFFFFF\">",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<font face=\"Calibri\">This is a test <b>HTML email with embedded images</b>.<br>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<br>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<img alt=\"\" src=\"cid:starfish\"><br>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"<img alt=\"\" src=\"cid:hedgehogs\"><br>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"</font>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"</body>",bCrlf); CkStringBuilderW_AppendLine(sbHtmlBody,L"</html>",bCrlf); // Load the embedded image files. jpgStarfish = CkBinDataW_Create(); CkBinDataW_LoadFile(jpgStarfish,L"qa_data/jpg/starfish.jpg"); jpgHedgeHogs = CkBinDataW_Create(); CkBinDataW_LoadFile(jpgHedgeHogs,L"qa_data/jpg/hedgehogs.jpg"); // Load files that are to be attached (not inline images) attach1 = CkBinDataW_Create(); CkBinDataW_LoadFile(attach1,L"qa_data/pdf/fishing.pdf"); attach2 = CkBinDataW_Create(); CkBinDataW_LoadFile(attach2,L"qa_data/msword/sample.docx"); // The body of the POST request contains JSON that specifies the email subject, body, // recipients, etc. This example will build the following JSON HTML email with // two embedded images and two attachments. // // The only difference between an embedded inline image and an attachment is that the // inline image must have a cid that corresponds to the "cid:" found in the "src" attribute // of an IMG tag within the HTML body of the email. (The inline image is also marked as "isInline", // whereas the attachments are not, but I don't know if this actually makes a difference..) // // { // "message": { // "subject": "Sample HTML Email with Embedded Images and Attachments", // "body": { // "contentType": "html", // "content": "The HTML body goes here..." // }, // "toRecipients": [ // { // "emailAddress": { // "name": "Chilkat Software", // "address": "admin@chilkat.io" // } // }, // { // "emailAddress": { // "address": "chilkat.support@gmail.com" // } // } // ], // "ccRecipients": [ // { // "emailAddress": { // "name": "Chilkat Blog", // "address": "admin@cknotes.com" // } // } // ], // "attachments": [ // { // "@odata.type": "#microsoft.graph.fileAttachment", // "name": "starfish.jpg", // "contentType": "image/jpeg", // "size": 6497, // "isInline": true, // "contentId": "starfish", // "contentLocation": null, // "contentBytes": "base64_data_here" // }, // { // "@odata.type": "#microsoft.graph.fileAttachment", // "name": "hedgehogs.jpg", // "contentType": "image/jpeg", // "size": 48845, // "isInline": true, // "contentId": "hedgehogs", // "contentLocation": null, // "contentBytes": "base64_data_here" // }, // { // "@odata.type": "#microsoft.graph.fileAttachment", // "name": "fishing.pdf", // "contentType": "application/pdf", // "size": <theActualSize>, // "isInline": false, // "contentBytes": "base64_data_here" // }, // { // "@odata.type": "#microsoft.graph.fileAttachment", // "name": "sample.docx", // "contentType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document", // "size": <theActualSize>, // "isInline": false, // "contentBytes": "base64_data_here" // } // ] // }, // "saveToSentItems": true // } // // Build the above JSON. json = CkJsonObjectW_Create(); CkJsonObjectW_UpdateString(json,L"message.subject",L"Sample HTML Email with Embedded Images and Attachments"); CkJsonObjectW_UpdateString(json,L"message.body.contentType",L"html"); CkJsonObjectW_UpdateString(json,L"message.body.content",CkStringBuilderW_getAsString(sbHtmlBody)); CkJsonObjectW_UpdateString(json,L"message.toRecipients[0].emailAddress.name",L"Chilkat Software"); CkJsonObjectW_UpdateString(json,L"message.toRecipients[0].emailAddress.address",L"admin@chilkat.io"); CkJsonObjectW_UpdateString(json,L"message.toRecipients[1].emailAddress.address",L"chilkat.support@gmail.com"); CkJsonObjectW_UpdateString(json,L"message.ccRecipients[0].emailAddress.name",L"Chilkat Blog"); CkJsonObjectW_UpdateString(json,L"message.ccRecipients[0].emailAddress.address",L"admin@cknotes.com"); CkJsonObjectW_UpdateString(json,L"message.attachments[0].\"@odata.type\"",L"#microsoft.graph.fileAttachment"); CkJsonObjectW_UpdateString(json,L"message.attachments[0].name",L"starfish.jpg"); CkJsonObjectW_UpdateString(json,L"message.attachments[0].contentType",L"image/jpeg"); CkJsonObjectW_UpdateInt(json,L"message.attachments[0].size",CkBinDataW_getNumBytes(jpgStarfish)); CkJsonObjectW_UpdateBool(json,L"message.attachments[0].isInline",TRUE); // This contentId must match the "cid:" in the HTML CkJsonObjectW_UpdateString(json,L"message.attachments[0].contentId",L"starfish"); CkJsonObjectW_UpdateNull(json,L"message.attachments[0].contentLocation"); CkJsonObjectW_UpdateBd(json,L"message.attachments[0].contentBytes",L"base64",jpgStarfish); CkJsonObjectW_UpdateString(json,L"message.attachments[1].\"@odata.type\"",L"#microsoft.graph.fileAttachment"); CkJsonObjectW_UpdateString(json,L"message.attachments[1].name",L"hedgehogs.jpg"); CkJsonObjectW_UpdateString(json,L"message.attachments[1].contentType",L"image/jpeg"); CkJsonObjectW_UpdateInt(json,L"message.attachments[1].size",CkBinDataW_getNumBytes(jpgHedgeHogs)); CkJsonObjectW_UpdateBool(json,L"message.attachments[1].isInline",TRUE); // This contentId must match the "cid:" in the HTML CkJsonObjectW_UpdateString(json,L"message.attachments[1].contentId",L"hedgehogs"); CkJsonObjectW_UpdateNull(json,L"message.attachments[1].contentLocation"); CkJsonObjectW_UpdateBd(json,L"message.attachments[1].contentBytes",L"base64",jpgHedgeHogs); CkJsonObjectW_UpdateString(json,L"message.attachments[2].\"@odata.type\"",L"#microsoft.graph.fileAttachment"); CkJsonObjectW_UpdateString(json,L"message.attachments[2].name",L"fishing.pdf"); CkJsonObjectW_UpdateString(json,L"message.attachments[2].contentType",L"application/pdf"); CkJsonObjectW_UpdateInt(json,L"message.attachments[2].size",CkBinDataW_getNumBytes(attach1)); CkJsonObjectW_UpdateBool(json,L"message.attachments[2].isInline",FALSE); CkJsonObjectW_UpdateBd(json,L"message.attachments[2].contentBytes",L"base64",attach1); CkJsonObjectW_UpdateString(json,L"message.attachments[3].\"@odata.type\"",L"#microsoft.graph.fileAttachment"); CkJsonObjectW_UpdateString(json,L"message.attachments[3].name",L"sample.docx"); CkJsonObjectW_UpdateString(json,L"message.attachments[3].contentType",L"application/vnd.openxmlformats-officedocument.wordprocessingml.document"); CkJsonObjectW_UpdateInt(json,L"message.attachments[3].size",CkBinDataW_getNumBytes(attach2)); CkJsonObjectW_UpdateBool(json,L"message.attachments[3].isInline",FALSE); CkJsonObjectW_UpdateBd(json,L"message.attachments[3].contentBytes",L"base64",attach2); CkJsonObjectW_UpdateBool(json,L"saveToSentItems",TRUE); // ------------------------------------------------------------- // Important: This example requires Chilkat v9.5.0.68 or greater. // ------------------------------------------------------------- // Send the HTTP POST (i.e. send the HTML email) resp = CkHttpW_PostJson3(http,L"https://graph.microsoft.com/v1.0/me/sendMail",L"application/json",json); if (CkHttpW_getLastMethodSuccess(http) != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkHttpW_Dispose(http); CkStringBuilderW_Dispose(sbHtmlBody); CkBinDataW_Dispose(jpgStarfish); CkBinDataW_Dispose(jpgHedgeHogs); CkBinDataW_Dispose(attach1); CkBinDataW_Dispose(attach2); CkJsonObjectW_Dispose(json); return; } // The send succeeded if the response status code = 202. // In the success case, there is no response body. (We just get the response code to know that it succeeded.) if (CkHttpResponseW_getStatusCode(resp) != 202) { CkJsonObjectW_Load(json,CkHttpResponseW_bodyStr(resp)); CkJsonObjectW_putEmitCompact(json,FALSE); wprintf(L"%s\n",CkJsonObjectW_emit(json)); wprintf(L"Failed, response status code = %d\n",CkHttpResponseW_getStatusCode(resp)); } else { wprintf(L"Outlook HTML Mail Sent.\n"); } CkHttpResponseW_Dispose(resp); CkHttpW_Dispose(http); CkStringBuilderW_Dispose(sbHtmlBody); CkBinDataW_Dispose(jpgStarfish); CkBinDataW_Dispose(jpgHedgeHogs); CkBinDataW_Dispose(attach1); CkBinDataW_Dispose(attach2); CkJsonObjectW_Dispose(json); } |
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