Vagrant cant connect to local host - docker

Question

Hello i am having trouble with vagrant setup.
So i am trying to ping serverless API which runs on http://localhost:3000/ (and it's outside vagrant project).
Right now my vagrant project runs on https://localhost:4443/.
Overall trying to CURL request from vagrant project to another serverless project.
Tried to use http://localhost:3000/ in CURL request but getting Failed to connect to localhost port 3000: Connection refused
Tried to use VM ip 10.0.2.15 address same
Tried to do port forwarding in vagrantfile config.vm.network :forwarded_port, guest: 3000, host: 3000 and use machine IP address 192.168.0.16, getting empty response from server, when i try to do telnet 192.168.0.16 3000 getting
Trying 192.168.0.16...
Connected to 192.168.0.16.
Escape character is '^]'.
Connection closed by foreign host.
Any idea what to try?

Answer 1

I had to use VM IP address something like
curl -X GET http://10.0.2.2:3000

Answer 2

These errors may be caused due to follow reasons, ensure the following steps are followed. To connect the local host with the local virtual machine(host). Here, I'am connecting http://localhost:3001/ to the http://abc.test Steps to be followed:
1.We have to allow CORS, placing Access-Control-Allow-Origin: in header of request may not work. Install a google extension which enables a CORS request.*
2.Make sure the credentials you provide in the request are valid.
3.Make sure the vagrant has been provisioned. Try vagrant up --provision this make the localhost connect to db of the homestead.
Try changing the content type of the header. header:{ 'Content-Type' : 'application/x-www-form-urlencoded; charset=UTF-8;application/json' }
this point is very important.