uptimed | uptime record daemon keeping track of the highest uptimes

Update your uptime-chart.component.ts file-

The issue is that the two objects you are creating don't contain the same properties. Arrays will report the information based on the properties in the first object. So if the first object fails, then all the others will report back the same four properties when the array is output.

My suggestion for dealing with this in the most simple way is to add the additional properties to the failing object, setting the values as $null. This should see that your CSV receives all the properties as intended.

First, a nitpick. The getaddrinfo() code should be incorporated into the initserver() function, and the linked list of socket structures freed (using freeaddrinfo()) after the loop. This makes the code much more maintainable; you want to keep tightly coupled implementations close together.

Exactly what is the difference between these two methods?

Binding to the wildcard address (i.e., using NULL node and AI_PASSIVE flag when obtaining suitable socket descriptions using getaddrinfo()) means the socket is bound to all network interfaces as a set, not to a specific network interface. When you bind to a specific node name, you bind to a specific network interface.

In practice, it means that if additional network interfaces become available at run time, the kernel will consider them when routing packets to/from sockets bound to the wildcard address.

It really should be a choice made by each system administrator, as there are use cases where the service (your application) should listen for incoming connections on all network interfaces, but also other use cases where the service should listen for incoming connections on a specific or some specific interfaces only. A typical case is when a machine is connected to multiple networks. It is surprisingly common for servers. For practical cases, see e.g. how the Apache web server can be configured.

Personally, I would rewrite OP's initServer() function to look something like the following:

There is a relatively simple typo in the getaddrinfo call