(C) Outlook Send Email with Attachments

This example sends a plain-text email with attachments. Other examples exist for:

• Sending plain-text email.
• Sending HTML email.
• Sending HTML email with embedded images.
• Sending HTML email with embedded images and attachments.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

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#include <C_CkHttp.h>
#include <C_CkBinData.h>
#include <C_CkJsonObject.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    HCkBinData attach1;
    HCkBinData attach2;
    HCkJsonObject json;
    HCkHttpResponse 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 = CkHttp_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).

    CkHttp_putAuthToken(http,"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.)
    // 

    // Load the files to be attached.
    attach1 = CkBinData_Create();
    CkBinData_LoadFile(attach1,"qa_data/pdf/fishing.pdf");
    attach2 = CkBinData_Create();
    CkBinData_LoadFile(attach2,"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 plain-text email:
    // 

    // 	{
    // 	  "message": {
    // 	    "subject": "Sample Email with Attachments",
    // 	    "body": {
    // 	      "contentType": "Text",
    // 	      "content": "This is the plain-text body..."
    // 	    },
    // 	    "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": "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 = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"message.subject","Sample Email with Attachments");
    CkJsonObject_UpdateString(json,"message.body.contentType","Text");
    CkJsonObject_UpdateString(json,"message.body.content","This is the plain-text body...");

    CkJsonObject_UpdateString(json,"message.toRecipients[0].emailAddress.name","Chilkat Software");
    CkJsonObject_UpdateString(json,"message.toRecipients[0].emailAddress.address","admin@chilkat.io");
    CkJsonObject_UpdateString(json,"message.toRecipients[1].emailAddress.address","chilkat.support@gmail.com");
    CkJsonObject_UpdateString(json,"message.ccRecipients[0].emailAddress.name","Chilkat Blog");
    CkJsonObject_UpdateString(json,"message.ccRecipients[0].emailAddress.address","admin@cknotes.com");

    CkJsonObject_UpdateString(json,"message.attachments[0].\"@odata.type\"","#microsoft.graph.fileAttachment");
    CkJsonObject_UpdateString(json,"message.attachments[0].name","fishing.pdf");
    CkJsonObject_UpdateString(json,"message.attachments[0].contentType","application/pdf");
    CkJsonObject_UpdateInt(json,"message.attachments[0].size",CkBinData_getNumBytes(attach1));
    CkJsonObject_UpdateBool(json,"message.attachments[0].isInline",FALSE);
    CkJsonObject_UpdateBd(json,"message.attachments[0].contentBytes","base64",attach1);

    CkJsonObject_UpdateString(json,"message.attachments[1].\"@odata.type\"","#microsoft.graph.fileAttachment");
    CkJsonObject_UpdateString(json,"message.attachments[1].name","sample.docx");
    CkJsonObject_UpdateString(json,"message.attachments[1].contentType","application/vnd.openxmlformats-officedocument.wordprocessingml.document");
    CkJsonObject_UpdateInt(json,"message.attachments[1].size",CkBinData_getNumBytes(attach2));
    CkJsonObject_UpdateBool(json,"message.attachments[1].isInline",FALSE);
    CkJsonObject_UpdateBd(json,"message.attachments[1].contentBytes","base64",attach2);

    CkJsonObject_UpdateBool(json,"saveToSentItems",TRUE);

    // -------------------------------------------------------------
    // Important: This example requires Chilkat v9.5.0.68 or greater.
    // -------------------------------------------------------------

    // Send the HTTP POST (i.e. send the HTML email)
    resp = CkHttp_PostJson3(http,"https://graph.microsoft.com/v1.0/me/sendMail","application/json",json);
    if (CkHttp_getLastMethodSuccess(http) != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkBinData_Dispose(attach1);
        CkBinData_Dispose(attach2);
        CkJsonObject_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 (CkHttpResponse_getStatusCode(resp) != 202) {
        CkJsonObject_Load(json,CkHttpResponse_bodyStr(resp));
        CkJsonObject_putEmitCompact(json,FALSE);
        printf("%s\n",CkJsonObject_emit(json));
        printf("Failed, response status code = %d\n",CkHttpResponse_getStatusCode(resp));
    }
    else {
        printf("Outlook Mail with Attachments Sent.\n");
    }

    CkHttpResponse_Dispose(resp);


    CkHttp_Dispose(http);
    CkBinData_Dispose(attach1);
    CkBinData_Dispose(attach2);
    CkJsonObject_Dispose(json);

    }