Showing 0 to 0 of 0 entries (filtered from NaN total entries) For Node js server side processing.

I get response for Node js server side processing as given below
data […]
fieldErrors []
files {}
options {}

But for php server side processing,i get

draw 5
recordsTotal 11
recordsFiltered 11
data […].

Using node js server side processing and keeping serverSide:"true" gives Showing 0 to 0 of 0 entries (filtered from NaN total entries), and also search is not working,

Thanks in advance