server.mime.fromBase64String

(FintechOS Studio 21.1.0 and later)

Returns the MIME type of a string encoded using the Base64 scheme.

Syntax

function server.mime.fromBase64String(source: string): string

Return Value

Returns a string containing the MIME type if it matches one of the known MIME types or null otherwise.

Examples

Get the MIME type of a file stored in the upload location

In this example:

• We retrieve the Base64 encoded contents of the unknownFile file using the getBase64Encoded function.
• We extract the file's MIME type and store in the fileType variable.

Copy

var fileType = server.mime.fromBase64String(getBase64Encoded('unkownFile'))