AshV/DownloadAllDynamics365EmailAttachments.html

## DownloadAllDynamics365EmailAttachments.html
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.2.2/jszip.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.8/FileSaver.min.js"></script>
</head>
<body>
    <button onclick="getAttachmentList()">Download All Attachmenta</button>
    <script>
        function getAttachmentList() {
            var emailId = parent.Xrm.Page.data.entity.getId();
            parent.Xrm.Utility.showProgressIndicator("Preparind attachments download...");
            parent.Xrm.WebApi
                .retrieveMultipleRecords("activitymimeattachment",
                    "$select=activitymimeattachmentid,mimetype,filename&$filter=_objectid_value eq " + emailId)
                .then(listAttachment, function (err) {
                    Xrm.Utility.closeProgressIndicator();
                    alert("Error occured : " + err);
                });
        }

        function listAttachment(attachmentList) {
            attachmentList.entities.forEach((record) => {
                console.log(record);
            });
            Promise.all(
                attachmentList.entities.map(record =>
                    parent.Xrm.WebApi.retrieveRecord("activitymimeattachment",
                        record.activitymimeattachmentid,
                        "$select=activitymimeattachmentid,mimetype,filename,body")
                )
            ).then(filesData => {
                saveToZip("EmailAttachments.zip", filesData)
            }, (err) => {
                Xrm.Utility.closeProgressIndicator();
                alert("Error occured" + err);
            });
        }

        function saveToZip(filename, filesData) {
            const zip = new JSZip()
            const folder = zip.folder('Files')
            filesData.forEach((attachment) => {
                folder.file(attachment.filename, atob(attachment.body), { binary: true })
            });
            zip.generateAsync({ type: "blob" })
                .then(blob => saveAs(blob, filename))
                .catch(e => console.log(e));
        }
    </script>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<meta charset="utf-8" />
	<title></title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.2.2/jszip.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.8/FileSaver.min.js"></script>
	</head>
	<body>
	<button onclick="getAttachmentList()">Download All Attachmenta</button>
	<script>
	function getAttachmentList() {
	var emailId = parent.Xrm.Page.data.entity.getId();
	parent.Xrm.Utility.showProgressIndicator("Preparind attachments download...");
	parent.Xrm.WebApi
	.retrieveMultipleRecords("activitymimeattachment",
	"$select=activitymimeattachmentid,mimetype,filename&$filter=_objectid_value eq " + emailId)
	.then(listAttachment, function (err) {
	Xrm.Utility.closeProgressIndicator();
	alert("Error occured : " + err);
	});
	}

	function listAttachment(attachmentList) {
	attachmentList.entities.forEach((record) => {
	console.log(record);
	});
	Promise.all(
	attachmentList.entities.map(record =>
	parent.Xrm.WebApi.retrieveRecord("activitymimeattachment",
	record.activitymimeattachmentid,
	"$select=activitymimeattachmentid,mimetype,filename,body")
	)
	).then(filesData => {
	saveToZip("EmailAttachments.zip", filesData)
	}, (err) => {
	Xrm.Utility.closeProgressIndicator();
	alert("Error occured" + err);
	});
	}

	function saveToZip(filename, filesData) {
	const zip = new JSZip()
	const folder = zip.folder('Files')
	filesData.forEach((attachment) => {
	folder.file(attachment.filename, atob(attachment.body), { binary: true })
	});
	zip.generateAsync({ type: "blob" })
	.then(blob => saveAs(blob, filename))
	.catch(e => console.log(e));
	}
	</script>
	</body>
	</html>