javascript - How to retrieve POST data in NodeJS that was passed using CURL?

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I am trying to pass some parameters to
my localhost (which is using nodejs) with a CURL command, but my localhost isn't reading
them correctly.

I am doing my POST request to my
localhost like this:

curl --data
            "db_name=auto&old_db=Lab.tar.gz&new_db=627999E00_10.tgz" 
 --noproxy
            localhost 
 -H "Accept: text/plain" 
 -H "Content-Type: text/plain"
            

 -X POST
            http://localhost:8084/auto

And
I try to retrieve my data params with node like
this:

app.post('/auto',function(req,res){

            var db_name=req.body.db_name; //undefined
 var old_db=req.body.old_db;
            //undefined
 var new_db=req.body.new_db; //undefined

            ...

});

But
db_name,old_db,new_db
are all always undefined.

Also, req.body is an
empty object {}

And
req.url is just
/auto

How to I retrieve
the parameters that I passed with my curl program in
node?

==================
Versions

• NodeJS
  v6.5.0


• ExpressJS
  v3.14.0


• CURL
  v7.22.0

==================
Updates

My
ExpressJs configuration is the
following:

app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.urlencoded());
app.use(app.router);

app.use(express.static(_path.join(__dirname,
            '..',
            'Client')));

Also I
tried some other curl
variations:

curl --noproxy
            localhost 
 -H "Accept: text/plain" 
 -H "Content-Type:
            application/json" 
 -X POST 
 -d
            "{'db_name':'auto','old_db':'Lab.tar.gz','new_db':'627999E00_10.tgz'}"
            


            http://localhost:8084/auto

Answer

Finally got it to work with the help from
@J.Chen and @hanshenrik !

If I change the format
of the --data in my CURL request to be a JSON
object (like {'key':'value',...}) instead of a
string
(key=value&...),

AND
if I remove the -H
"Accept: text/plain" -H "Content-Type: application/json" from the CURL
request,

Then my nodeJS Application finally sees
the parameters in
req.body.

So
my final code is:

curl --noproxy
            localhost 
 -X POST 
 -d
            "{'db_name':'auto','old_db':'Lab.tar.gz','new_db':'627999E00_10.tgz'}" 

            http://localhost:8084/auto

And
my NodeJS code
is:

app.post('/auto',function(req,res){

            var parseMe = Object.keys(req.body)[0];
 var parsedParams =
            JSON.parse(parseMe);

 var db_name=parsedParams.db_name; 

            var old_db=parsedParams.old_db; 
 var new_db=parsedParams.new_db; 

            ...
});