ContentType Property

The value of the content-type header of the message which was encoded/decoded.

Syntax

 mime.getContentType([callback])
 mime.setContentType( contentType, [callback])

Default Value

""

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for the getContentType([callback]) method is defined as:

function(err, data){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'data' is the value returned by the method.

The callback for the setContentType([callback]) method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This property contains the value of the content-type header of the message which was encoded/decoded. The class filters it out from the MessageHeaders. It shows the user about the type of the parts and their relation to each other.

The content-type attributes such as filename, boundary, charset etc are held in this property.

Data Type

String