How can i pass my proxy settings to node-geocoder?

[fahadsubzwari924]

I have my node.js server running on a vm along with a proxy on it. Now i am using node-geocoder to get lat lng from node-geocoder like this

 const NodeGeocoder = require('node-geocoder');
 var geocoder = NodeGeocoder(constants.config.geocoderOptions);


const geoCodeAddress = await geocoder.geocode(address.location);

now it's throwing an error due to proxy like this

request to https://maps.googleapis.com/maps/api/geocode/json?sensor=false&key=my-key&address=Korangi%20Creek failed, reason: getaddrinfo ENOTFOUND maps.googleapis.com maps.googleapis.com:443

So how can i pass my proxy settings in node-geocoder ?

[pdavies011010]

The README shows how to override the fetch method:

// Set specific http request headers:
const nodeFetch = require('node-fetch');

const geocoder = NodeGeocoder({
  provider: 'google',
  fetch: function fetch(url, options) {
    return nodeFetch(url, {
      ...options,
      headers: {
        'user-agent': 'My application <[email protected]>',
        'X-Specific-Header': 'Specific value'
      }
    });
  }
});

In there you can add any options you want, including theoretically overriding the agent using something like the http-proxy-agent module:

const nodeFetch = require('node-fetch');
const HttpProxyAgent = require('http-proxy-agent');
const options = {
    provider: 'openstreetmap',
    fetch: function (url, options) {
      // Configure to use the proxy from HTTP_PROXY or http_proxy env variable
      let proxy = process.env.http_proxy || process.env.HTTP_PROXY;
      if (proxy) {
        options.agent = new HttpProxyAgent(proxy);
      }

      return nodeFetch(url, {
        ...options,
      });
    },
  };

[pdavies011010]

Also note that node-geocoder uses node-fetch version 2, and you will need to use v2 as well in the above example. I have tried using it with node-fetch v3 but it had problems (caused my unit tests to hang indefinitely, not sure what the underlying issue actually was). I will open an issue about it and if possible will create a PR to upgrade to node-fetch v3.