index.js

const fetch = require("node-fetch");
const authentication = require("./token.json");

async function scoreUsers() {
    let body = {
        script: {
            lang: "painless",
            inline: "if (ctx._source.containsKey('contributions')) { ctx._source.calculated_skill = Math.log(0.05 * ctx._source.followers + 0.05 * ctx._source.public_repos + 0.05 * ctx._source.contributions) / 6  } else { ctx._source.calculated_skill = 0 }"
        }
    }

    try {
        let queryPromise = await fetch('http://tindev.gijsweterings.nl/es/backusers/_update_by_query', 
        {
            method: "POST",
            headers: {
                Authorization: authentication.token,
                contentType: "application/json"
            },
            body: JSON.stringify(body)
        });
        let query = await queryPromise.json();

        console.log("updated " + query.updated + "/" + query.total + " users in " + query.batches + " batches");
    }
    catch(e) {
        console.error(e);
    }
}


scoreUsers();