B4X
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.
Chilkat B4X Downloads

B4X
Dim success As Boolean = False

'  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.

Dim http As ChilkatHttp
http.Initialize("http")

'  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).

http.AuthToken = "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.
Dim attach1 As ChilkatBinData
attach1.Initialize
attach1.LoadFile("qa_data/pdf/fishing.pdf")
Dim attach2 As ChilkatBinData
attach2.Initialize
attach2.LoadFile("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.
Dim json As ChilkatJsonObject
json.Initialize
json.UpdateString("message.subject", "Sample Email with Attachments")
json.UpdateString("message.body.contentType", "Text")
json.UpdateString("message.body.content", "This is the plain-text body...")

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

json.UpdateString("message.attachments[0]." & Chr(34) & "@odata.type" & Chr(34), "#microsoft.graph.fileAttachment")
json.UpdateString("message.attachments[0].name", "fishing.pdf")
json.UpdateString("message.attachments[0].contentType", "application/pdf")
json.UpdateInt("message.attachments[0].size", attach1.NumBytes)
json.UpdateBool("message.attachments[0].isInline", False)
json.UpdateBd("message.attachments[0].contentBytes", "base64", attach1)

json.UpdateString("message.attachments[1]." & Chr(34) & "@odata.type" & Chr(34), "#microsoft.graph.fileAttachment")
json.UpdateString("message.attachments[1].name", "sample.docx")
json.UpdateString("message.attachments[1].contentType", "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
json.UpdateInt("message.attachments[1].size", attach2.NumBytes)
json.UpdateBool("message.attachments[1].isInline", False)
json.UpdateBd("message.attachments[1].contentBytes", "base64", attach2)

json.UpdateBool("saveToSentItems", True)

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

'  Send the HTTP POST (i.e. send the HTML email)
Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpJson("POST", "https://graph.microsoft.com/v1.0/me/sendMail", json, "application/json", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


'  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 resp.StatusCode <> 202 Then
    json.Load(resp.BodyStr)
    json.EmitCompact = False
    Log(json.Emit)
    Log("Failed, response status code = " & resp.StatusCode)
Else
    Log("Outlook Mail with Attachments Sent.")
End If