Hosting static angular2 app on nginx and proxying

How do I get angular2 routes to work and proxy http requests to a rest api on another machine?

I have an angular2 web application on an nginx server which serves the static html files. I have a separate rest api hosted on a different machine with a different IP address. I have set the location to / in my nginx config file to allow the angular2 routes to work correctly. I have also added a location /api/ which i hoped would intercept any api requests and proxy them to my backend api.

My nginx conf with proxy set to http://swapi.co for test purposes.

events {
  worker_connections  4096;  ## Default: 1024
}

http {
  server {
    listen       80;
    server_name  localhost;

    root   /usr/share/nginx/html;
    index  index.html index.htm;
    include /etc/nginx/mime.types;

    location / {
         # If you want to enable html5Mode(true) in your angularjs app for pretty URL
         # then all request for your angularJS app will be through index.html
         try_files $uri /index.html;
    }

    # /api will server your proxied API that is running on same machine different port
    # or another machine. So you can protect your API endpoint not get hit by public directly
    location /api/ {
        proxy_pass http://swapi.co;
        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;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    #Static File Caching. All static files with the following extension will be cached for 1 day
    location ~* .(jpg|jpeg|png|gif|ico|css|js)$ {
        expires 1d;
    }
  } 
}

My angular2 service

import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { Observable } from 'rxjs/Observable';

@Injectable()
export class Service {

  private url: string = '/api/people/';
  constructor (private http: Http) {}

  getPeople () {
    return this.http.get(this.url)
                  .map(res => res.json());
  }
}

Any help would be much appreciated.

Got it to proxy requests correctly in my development environment. Added to the http block and pointed proxy pass to the upstream api value

upstream api {
  server 192.168.0.15:9998;
}

Complete config:

events {
  worker_connections  4096;  ## Default: 1024
}

http {

  # Change this depending on environment
  upstream api {
    server 192.168.0.1:9998;
  }

  server {
    listen       80;
    server_name  localhost;

    root   /usr/share/nginx/html;
    index  index.html index.htm;
    include /etc/nginx/mime.types;

    location / {
      # If you want to enable html5Mode(true) in your angularjs app for pretty URL
      # then all request for your angularJS app will be through index.html
      try_files $uri /index.html;
    }

    # /api will server your proxied API that is running on same machine different port
    # or another machine. So you can protect your API endpoint not get hit by public directly
    location /api {
      proxy_pass http://api;
      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;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    #Static File Caching. All static files with the following extension will be cached for 1 day
    location ~* .(jpg|jpeg|png|gif|ico|css|js)$ {
      expires 1d;
    }
  }
}