CODEWITHSUNDEEP
node.jsloopbackjs
Alexander Mills
Alexander Mills

Reputation: 100496

Accessing Loopback config data from middleware

Say we are in Loopback middleware, such as

app.use(function(req,res,next){

    // I am not sure what key to use here in the getter...
    const config = app.get('?');

});

I want to access the overall config that Loopback is using.

I tried:

const config = app.get('config');
const config = app.get('env');
const config = app.get('datasources');

nothing gives me quite what I want.

Interestingly, this gives me:

console.log(app.get('restApiRoot'));
=> '/api'

so that's a clue to what's going on, but I want to get the parent object(s) for the above data.

how can we access the configuration that Loopback has loaded. The configuration of course varies by environment variables etc.

I want to log what datasources.x.js file was loaded and what config.x.js file was loaded, and any other server configuration info I can capture.

Having a lot of trouble figuring out how to do this.

This seems to be the same question I have: https://github.com/strongloop/loopback/issues/1526

but they point me to the void that is Google Groups and I searched through there and couldn't find what the answer to this question.

Upvotes: 2

Views: 824

Answers (1)

Overdrivr
Overdrivr

Reputation: 6606

This behavior is actually inherited from Express.

The entire config is stored in the app.settings object, with app.get(key) and app.set(key,value) just acting as getter/setter.

Doing console.log(app.settings); (in server/server.js for instance) it on a fresh loopback install returns the following:

{ 'x-powered-by': true,
  etag: 'weak',
  'etag fn': [Function: wetag],
  env: 'development',
  'query parser': 'extended',
  'query parser fn': [Function: parseExtendedQueryString],
  'subdomain offset': 2,
  'trust proxy': false,
  'trust proxy fn': [Function: trustNone],
  view: [Function: View],
  views: 'C:\\Users\\*******\\Documents\\GitHub\\lbtest\\views',
  'jsonp callback name': 'callback',
  host: '0.0.0.0',
  port: 3000,
  restApiRoot: '/api',
  remoting:
   { context: { enableHttpContext: false },
     rest: { normalizeHttpPath: false, xml: false },
     json: { strict: false, limit: '100kb' },
     urlencoded: { extended: true, limit: '100kb' },
     cors: false,
     errorHandler: { disableStackTrace: false } },
  legacyExplorer: false,
  'loopback-component-explorer': { mountPath: '/explorer' },
  url: 'http://localhost:3000/' }

Upvotes: 2

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