Base 64 to attachment conversion

[supriya pratapa]

We have a base64 response and want to convert this base64 into attachment and attach it to a record in ServiceNow.

(function() {

    var base64Payload = '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';

    var base64Bytes = GlideStringUtil.base64DecodeAsBytes(base64Payload);

    var ByteArrayInputStream = Packages.java.io.ByteArrayInputStream;

    var inputStream = new ByteArrayInputStream(base64Bytes);

    var gr = new GlideRecord('incident');

    var recordSysId = '57af7aec73d423002728660c4cf6a71c';

    if (!gr.get(recordSysId)) {

        gs.error('Record not found: incident sys_id=' + recordSysId);

        return;

    }

    var gsa = new GlideSysAttachment();

    gsa.write(gr.getUniqueValue(),gr.getTableName(),'test10.pdf', 'application/pdf', inputStream);

    gs.info('Attachment created successfully.');

})();

The attachment is attached to the record but unable to open the file.

[Ankur Bawiskar]

@supriya pratapa 

you are writing the above script in scoped app or global scope?

[supriya pratapa]

Global scope

[Ankur Bawiskar]

@supriya pratapa 

if you are writing the above script in global scope then use this logic

This will work and when you download file will show correct data if the base64 encoded string is valid

var base64Payload = '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';

var gr = new GlideRecord('incident');
var recordSysId = '57af7aec73d423002728660c4cf6a71c';
if (!gr.get(recordSysId)) {
    gs.error('Record not found: incident sys_id=' + recordSysId);
    return;
} else {
    var fileName = 'test10.pdf';
    var contentType = 'application/pdf';
    var ecc = new GlideRecord('ecc_queue');
    ecc.initialize();
    ecc.agent = "AttachmentCreator";
    ecc.topic = "AttachmentCreator";
    ecc.name = fileName + ":" + contentType;
    ecc.source = "incident:" + gr.sys_id;
    ecc.payload = base64Payload;
    ecc.insert();
}

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏

[supriya pratapa]

Hi @Ankur Bawiskar , Facing the same error.