I want to add two new header properties to all my api requests, instead of adding it one by one, is there a way I could append the new header properties, to the existing headers, that way I get to define the new header once and call it everywhere I need it. Something like:

So instead of this:

headers: {
                'Content-Type': 'application/json',
                'float-app': 'app Name',
                'float-version': 'version',
            },

I could do something like this:

newHeader: {
        'float-app': 'app Name',
        'float-version': 'version name',
      }

headers: {
       'Content-Type': 'application/json',
       newHeader,
     },

Currently with the above approach, I'm getting this:

headers: {
           'Content-Type': 'application/json',
              {
                'float-app': 'app Name',
                'float-version': 'version name',
              },
         },

Is there something I'm missing please?