Zig

Outlook Send Email with Attachments

See more Outlook Examples

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

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // 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.

    const http = try chilkat.Http.init();
    defer http.deinit();

    // 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.setAuthToken("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.
    const attach1 = try chilkat.BinData.init();
    defer attach1.deinit();
    attach1.loadFile("qa_data/pdf/fishing.pdf") catch {};
    const attach2 = try chilkat.BinData.init();
    defer attach2.deinit();
    attach2.loadFile("qa_data/msword/sample.docx") catch {};

    // 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.
    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.updateString("message.subject", "Sample Email with Attachments") catch {};
    json.updateString("message.body.contentType", "Text") catch {};
    json.updateString("message.body.content", "This is the plain-text body...") catch {};

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

    json.updateString("message.attachments[0].\"@odata.type\"", "#microsoft.graph.fileAttachment") catch {};
    json.updateString("message.attachments[0].name", "fishing.pdf") catch {};
    json.updateString("message.attachments[0].contentType", "application/pdf") catch {};
    json.updateInt("message.attachments[0].size", attach1.getNumBytes()) catch {};
    json.updateBool("message.attachments[0].isInline", false) catch {};
    json.updateBd("message.attachments[0].contentBytes", "base64", attach1) catch {};

    json.updateString("message.attachments[1].\"@odata.type\"", "#microsoft.graph.fileAttachment") catch {};
    json.updateString("message.attachments[1].name", "sample.docx") catch {};
    json.updateString("message.attachments[1].contentType", "application/vnd.openxmlformats-officedocument.wordprocessingml.document") catch {};
    json.updateInt("message.attachments[1].size", attach2.getNumBytes()) catch {};
    json.updateBool("message.attachments[1].isInline", false) catch {};
    json.updateBd("message.attachments[1].contentBytes", "base64", attach2) catch {};

    json.updateBool("saveToSentItems", true) catch {};

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

    // Send the HTTP POST (i.e. send the HTML email)
    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpJson("POST", "https://graph.microsoft.com/v1.0/me/sendMail", json, "application/json", resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        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 (resp.getStatusCode() != 202) {
        json.load(try resp.getBodyStr(alloc)) catch {};
        json.setEmitCompact(false);
        std.debug.print("{s}\n", .{try json.emit(alloc)});
        std.debug.print("Failed, response status code = {d}\n", .{resp.getStatusCode()});
    } else {
        std.debug.print("Outlook Mail with Attachments Sent.\n", .{});
    }
}