alagarr/dist/src/request/middleware/meta.js

Alagarr is a request-response helper library that removes the boilerplate from your Node.js serverless functions and helps make your code portable.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const state = new Map([['invocationCount', 0]]);
function meta(request) {
    const invocationCount = Number(state.get('invocationCount'));
    return Object.assign({}, request, { meta: Object.assign({}, request.meta, { coldStart: !invocationCount, invocationCount: state
                .set('invocationCount', invocationCount + 1)
                .get('invocationCount') }) });
}
exports.default = meta;