NGINX: what's wrong with my nginx configuration

Question

I have an angular application served by nginx, this angular application is negotiating with the rest of the server on the same server.

I have the following server configuration in my / etc / nginx / sites -available /

"default" and "app" The Angular application runs correctly, by default the server listens for 80.

  server{
    listen 80 default_server;
    listen [::]:80 default_server;


    root /var/www/html;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    location / {

            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            try_files $uri $uri/ /index.html ;
    }

}

Then in my server block "application", which should redirect requests to the backup server,

server{
    listen [::]:80 ;

    server_name xxx.com;

    location / {

        proxy_pass http://127.0.0.1:8082;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }

}

angular POST API, 405 ( ), , nginx, ( 8082), OPTIONS , POST , , , CORS REST-. , , . , .

EDIT: MY-

Accept:*/*
Accept-Encoding:gzip, deflate
Accept-Language:en-US,en;q=0.9
Access-Control-Request-Headers:content-type
Access-Control-Request-Method:POST
Cache-Control:no-cache
Connection:keep-alive
Host:example.com
Origin:http://example.com
Pragma:no-cache
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36

My Os Ubuntu: 16.04, nginx: 1.10.3.

Answer 1

:

 server{
    listen 80 default_server;
    listen [::]:80 default_server;
    root /var/www/html;
    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;
    server_name _;
    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ /index.html ;
    }
    location /api/ {
        proxy_pass http://127.0.0.1:8082/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

apis, '/api/' URL.

CORS, :

  if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Credentials' 'true';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        # Custom headers and headers various browsers *should* be OK with but aren't
        #
        add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
        #
        # Tell client that this pre-flight info is valid for 20 days
        #
        add_header 'Access-Control-Max-Age' 1728000;
        add_header 'Content-Type' 'text/plain charset=UTF-8';
        add_header 'Content-Length' 0;
            return 204;
  }