ReqParamsIfUnmodifiedSince Property
Contains the If-Unmodified-Since request header property.
Syntax
httpclient.getReqParamsIfUnmodifiedSince([callback]) httpclient.setReqParamsIfUnmodifiedSince( reqParamsIfUnmodifiedSince, [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 getReqParamsIfUnmodifiedSince([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 setReqParamsIfUnmodifiedSince([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
Contains the If-Unmodified-Since request header field. This property makes the requested method conditional: when If-Unmodified-Since field is set, only the unmodified entities will be returned by the server.
This property is not available at design time.
Data Type
String