Source: example_entry.js

/*
 * tradable: ok
 * _id: auto
 * icon: from wiki
 * tags: ok
 * trading_tax: ok
 * en: ok
 * icon_format: auto
 * thumb: auto
 * rarity: ok,
 * mod_max_rank: ok,
 * url_name: auto
 */

/**
 *  <p>Defines an well formed entry in the warframe-market DB. Used merely as a 
 *  consultation example. For more information check the official repo.</p>
 *
 *  @see {@link https://bitbucket.org/42bytes/warframe.market-items}    
 */
let serration = {
    "tradable": true,
    "_id": "54a74454e779892d5e515596",
    "icon": "icons/en/Serration.711b19665b2acbac445c68c9e8f8b550.png",
    "tags": [
        "mod",
        "rifle",
        "uncommon"
    ],
    "trading_tax": 4000,
    "icon_format": "port",
    "en": {
        "item_name": "Serration",
        "wiki_link": "http://warframe.wikia.com/wiki/Serration",
        "drop": [{
            "name": "GrineerScorpion",
            "link": null
        }, {
            "name": "InfestedElectric Crawler",
            "link": null
        }, {
            "name": "InfestedNauseous Crawler",
            "link": null
        }, {
            "name": "Tier 2Defense Reward",
            "link": null
        }, {
            "name": "Tier 1/2/3Survival Reward",
            "link": null
        }, {
            "name": "Spy 2.0 Reward",
            "link": null
        }],
        "description": "<p>The Serration mod increases the base damage of primary weapons (excluding shotguns) by 15% per rank, at a maximum of 165% at rank 10.</p>"
    },
    "thumb": "icons/en/thumbs/Serration.711b19665b2acbac445c68c9e8f8b550.128x128.png",
    "rarity": "uncommon",
    "mod_max_rank": 10,
    "url_name": "serration"
};