Posting a new PostGIS feature type to GeoServer using the REST config API

node_geoserver_addfeature.js

//callback should be like function(err){//do stuff}
function registervector(datasetName, callback){
    //dataset name is the name of the PostGIS table
   process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0"; //my dev SSL is self-signed. don't do this in production.
   var https = require('https'); //using SSL because of basic auth in this example
   var auth = 'Basic ' + new Buffer('username' + ':' + 'p@s$w0rd').toString('base64'); //strong passwords please
   //build the object to post
   var post_data = {'featureType': {'name': datasetName}};
   //be sure to turn it into a string
   var s = JSON.stringify(post_data);
   var post_options = {
      host: 'my.geoserver.io',
      port: '443',
      path: '/rest/workspaces/myworkspace/datastores/mypgdatastore/featuretypes',
      method: 'POST',
      headers: {
        'Content-Length': s.length,
        'Content-Type': 'application/json',
	'Authorization': auth
      }
   }
   // Set up the request
   var post_req = https.request(post_options, function(res) {
      res.setEncoding('utf8');
      //201 is good, anything else is RIP
      if (res.statusCode === 201){
          res.on('data', function (chunk) {
          });
        //since we're good, call back with no error
	callback(null);
      }
      else{
          res.on('data', function (chunk) {
              //something went wrong so call back with error message
             callback(chunk);
          });
      }
   });
   // post the data
   post_req.write(s);
   post_req.end();
};
   
//here's how you call it
registervector('mytable', function(err){
	if(err){
		//RIP
		console.log(err);
	}
	else{
		//your table will appear as a new layer in GeoServer admin UI
		console.log('success');
	}
});