Question 215848 in Visual Studio Code Question posted in
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Visual Studio Code – Office.context.mailbox.item.subject.getAsync is not a function

Requirement:
Get email subject from outlook inbox by outlook add-in API.

Environment:

  1. Outlook add-in (sideload)
  2. "Mailbox" MinVersion="1.1"
  3. Visual studio code

Code:

async function ReadEmailSubject() {
  document.getElementById("email-subject").innerText = ""; 
  Office.context.mailbox.item.subject.getAsync(function (result) {
    var emailSubjectDiv = document.getElementById("email-subject");
    if (result.status === Office.AsyncResultStatus.Succeeded) {

        var emailSubject = result.value;
        emailSubjectDiv.innerText = emailSubject;
    } else {

        console.error("Failed to get email subject: " + result.error.message);
        emailSubjectDiv.innerText = "Failed to get email body: " + result.error.message;
    }
  });
}

Debug console:

TypeError: Office.context.mailbox.item.subject.getAsync is not a function
    at _callee2$ (e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:28:39)
    at tryCatch (e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1)
    at Generator.<anonymous> (e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1)
    at Generator.next (e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1)
    at asyncGeneratorStep (e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1)
    at _next (e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1)
    at e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1
    at new Promise (<anonymous>)
    at e:office-add-insOutlookyo-mainOutlook Add-insrctaskpanetaskpane.js:2:1
    at _ReadEmailSubject (https://localhost:3000/taskpane.js:266:28) {stack: 'TypeError: Office.context.mailbox.item.subjec…t (https://localhost:3000/taskpane.js:266:28)', message: 'Office.context.mailbox.item.subject.getAsync is not a function'}

What I have tried:

  1. change "Mailbox" MinVersion="1.1"
  2. use "Office.context.mailbox.item.subject.getAsync({asyncContext: "Getting email subject" },function (result){…})"
    The error still appeared.
Tags:

2

Answers


  1. 0

    It is not clear where and when the ReadEmailSubject is called in the add-in. But the following code works fine on my machine in Outlook for Desktop:

    let item;

Office.initialize = function () {
    item = Office.context.mailbox.item;
    // Checks for the DOM to load using the jQuery ready method.
    $(document).ready(function () {
        // After the DOM is loaded, app-specific code can run.
        // Get the subject of the item being composed.
        getSubject();
    });
}

// Get the subject of the item that the user is composing.
function getSubject() {
    item.subject.getAsync(
        function (asyncResult) {
            if (asyncResult.status == Office.AsyncResultStatus.Failed){
                write(asyncResult.error.message);
            }
            else {
                // Successfully got the subject, display it.
                write ('The subject is: ' + asyncResult.value);
            }
        });
}

// Write to a div with id='message' on the page.
function write(message){
    document.getElementById('message').innerText += message; 
}

    You can find a bunch of sample Outlook add-ins to verify what is wrong with your code, for example, see https://github.com/OfficeDev/Office-Add-in-samples/tree/main/Samples/outlook-verify-sensitivity-label .

    Login or Signup to reply.
  2. 0

    This API is available in compose scenarios only. You will get this error if you try to use this API in read scenarios.

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