Creating an Attachment to an Expense Item via Rest API

Summary:

Content (required):

Has anyone had success posting a payload for this rest api?

"Create an attachment record for a specific attachment identifier"

/fscmRestApi/resources/11.13.18.05/expenseReports/{expenseReportsUniqID}/child/Expense/{ExpenseUniqID}/child/Attachments

We're getting a 400 Bad Request "Unable to Parse Payload" when we attempt to send the response.

This is our payload

"Expense": [

{:

"Attachments":[

{:

"DatatypeCode":"Text",

"CategoryName":"Receipts",

"FileName":"test"

"FileContents":"test",

"Title":"test",

"Description":"test"

}:

]:

}:

]:

}:

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):