AnyFetch/restify-json-filtering

Easy filtering of JSON output in restify

restify-json-filtering

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This is a custom restify formatter to filter properties on JSON objects according to some custom param fields

How does this work?

Let's say you have an endpoint /search returning the following data:

{
  "count": 2,
  "next_page": "http://example.org/page3",
  "prev_path": "http://example.org/page1",
  "facets": {
    "owners": {
      "user": 0,
      "admin": 2
    },
    "creators": {
      "user": 1,
      "admin": 2
    }
  },
  "documents": [
    {
      "id": 1,
      "name": "My document",
      "snippet": "Some textual content"
    },
    {
      "id": 2,
      "name": "My other document",
      "snippet": "Some textual content"
    }
  ]
}

Once you setup this lib, when loading /search?fields=count,documents.id you'll see:

{
  "count": 2,
  "documents": [
    {
      "id": 1
    },
    {
      "id": 2
    }
  ]
}

Syntax

This should be a comma separated list of fields you want to retrieve. Arrays are "ignored" (see example above).

Leaving the parameter empty will not do any filtering. Adding a trailing . (dot) can be used to remove the content of an object (to count the number of items in an array without loading all the data).

How to use

var restify = require('restify');
// Replace "fields" by any name -- this will be used for the filtering data.
var restifyJsonFilterer = require('restify-json-filtering')('fields');

var server = restify.createServer({
  formatters: {
    'application/json': restifyJsonFilterer
  }
});

// You need to add *at least* this middleware
server.use(restify.queryParser());

Support: support@anyfetch.com.