@adobe/pdftools-extract-node-sdk/src/internal/http/http-handler.js

The Document Services PDF Tools Extract Node.js SDK provides APIs for extracting elements and renditions from PDF

/*
 * Copyright 2019 Adobe
 * All Rights Reserved.
 *
 * NOTICE: Adobe permits you to use, modify, and distribute this file in
 * accordance with the terms of the Adobe license agreement accompanying
 * it. If you have received this file from a source other than Adobe,
 * then your use, modification, or distribution of it requires the prior
 * written permission of Adobe.
 */

/* eslint no-param-reassign:0 */

function handleJsonHttp(http) {
	const newHttp = Object.create(http);
	newHttp.call = function (options, content, multiPartData) {
		let self = this,
			type = options && self.getHeader(options.headers, 'Content-Type'),
			promise1,
			promise2;
		// Convert to a string if needed.
		if (typeof content !== 'string' && type && /json;|json$/.test(type)) {
			content = JSON.stringify(content);
		}
		const handleResult = (result, contentType) => {
			// Convert from a string if needed.
			if (typeof result.content === 'string' && contentType && /json;|json$/.test(contentType) && result.status !== 204) {
				result.content = JSON.parse(result.content);
			}
		};

		promise1 = http.call(options, content, multiPartData);
		promise2 = new Promise((resolve, reject) => {
			promise1.then(result => {
				handleResult(result, self.getHeader(result.headers, 'Content-Type'));
				resolve(result);
			}, err => reject(err));
		});
		promise2.request = promise1.request;
		return promise2;
	};
	return newHttp;
}

module.exports = {
	handleJsonHttp
};