如何使用node-ews软件包阅读带正文和附件的未读邮件

Question

我可以使用这个node-ews包发送电子邮件，但我找不到合适的示例来读取收件箱文件夹中的电子邮件，并从电子邮件中获取正文和附件。

我已经看过微软的文档，例如https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/how-to-work-with-exchange-mailbox-items-by-using-ews-in-exchange#get-an-item-by-using-the-ews-managed-api，但示例是用C#、C++或VB提供的。

但我想用Nodejs来做这件事。

Answer 1

您可以使用以下代码通过FindItem函数从收件箱中获取电子邮件，然后使用GetItem函数读取每封电子邮件

 // Read emails from Inbox
    var ewsFunction = 'FindItem';
    var ewsArgs = {
        'attributes': {
            'Traversal': 'Shallow'
        },
        'ItemShape': {
            't:BaseShape': 'IdOnly',
            't:AdditionalProperties': {
            't:FieldURI': {
                'attributes': {
                'FieldURI': 'item:Subject'
                }
            }
          }
        },
        'ParentFolderIds' : {
            'DistinguishedFolderId': {
            'attributes': {
                'Id': 'inbox'
            }
          }
        }
    };
    // Itreate over all the emails and store Id and ChangeKey.
    ews.run(ewsFunction, ewsArgs, ewsSoapHeader)
    .then(result => {
        // Iterate over the result and extract Id and ChangeKey of the messages and pass those to GetItem function to read messages
    })
    
    // For reading individual messages returned by FindItem (using Id and ChangeKey)
    var ewsFunction = 'GetItem';
      var ewsArgs = {
        'ItemShape': {
          'BaseShape': 'Default',
          't:AdditionalProperties': {
            't:FieldURI': {
                'attributes': {
                'FieldURI': 'item:Attachments'
                }
            }
            }
          },
        'ItemIds' : {
          'ItemId': {
            'attributes': {
              'Id': Id,
              'ChangeKey' : ChangeKey
            }
          }
        }
      };
      await ews.run(ewsFunction, ewsArgs, ewsSoapHeader)
      .then(result => {
          // Iterate over the result and extract meesage
      })