@profusion/apollo-federation-upload/build/FormData.js

This library makes it easier to support file uploads to your federated micro-services. It uses the [Apollo](https://www.apollographql.com/docs/apollo-server/data/file-uploads/) server's solution. It works by simply redirecting the file uploaded stream to

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const form_data_1 = __importDefault(require("form-data"));
class FormData extends form_data_1.default {
    /*
      This is a workaround to make node-fetch to work properly
      with unknown length streams, which was not released yet.
      https://github.com/node-fetch/node-fetch/pull/707
     */
    getLength(callback) {
        const cb = (err, length) => {
            if (err || !Number.isNaN(length)) {
                callback(err, length);
            }
            else {
                callback(null, null);
            }
        };
        super.getLength(cb);
    }
    getLengthSync() {
        const len = super.getLengthSync();
        return Number.isNaN(len) ? null : len;
    }
}
exports.default = FormData;