@springernature/backend-proxy - npm Package Compare versions

Comparing version 2.1.0 to 2.2.0

HISTORY.md

		# History

		## 2.2.0

		_08/07/20_

		- `backendHeaders` option added, in order to offer the ability to supplement
		the outgoing HTTP response headers with some of the Backend response headers. ([morgaan](https://github.com/morgaan))

		## 2.1.0
		@@ -4,0 +11,0 @@ _19/06/20_

package.json

		{
		"name": "@springernature/backend-proxy",
		"version": "2.1.0",
		"version": "2.2.0",
		"description": "Proxies frontend requests to a backend and can render the result",
		@@ -5,0 +5,0 @@ "main": "index.js",

README.md

		@@ -36,3 +36,4 @@ # backend-proxy
		usePath: false,
		interceptErrors: true
		interceptErrors: true,
		backendHeaders: ['set-cookie']
		}), (req, res) => {
		@@ -49,5 +50,6 @@ res.render('login', req.backendResponse);
		\| `requiredContentType` \| Backend response content type thats required to allow interception and deserialization \| string \| `application/json` \|
		\| `usePath` \| Should the incoming HTTP request's path be apended to the `backend` URL \| boolean \| `true` \|
		\| `usePath` \| Should the incoming HTTP request's path be appended to the `backend` URL \| boolean \| `true` \|
		\| `interceptErrors` \| Should backend responses with HTTP 400 - 599 be intercepted and raised as express errors. If provided as a function, it takes the backendResponse as parameter and returns a boolean. This gives the frontend the flexibility to decided on a per-response status code basis. \| undefined, boolean or function \| `undefined` \|
		\| `key` \| The property on the request object that the backend response will be stored under. \| string \| `backendResponse` \|
		\| `backendHeaders` \| List of headers to copy from a Backend response to the outgoing client response (e.g. `Set-Cookie`...) \| string[] \| \|

		@@ -54,0 +56,0 @@ ### `renderBackendResponse(options)`

src/backend-proxy.js

		@@ -22,3 +22,3 @@ const http = require('http');
		try {
		// Supplement req with data from BE
		// Supplement request with data from Backend
		request[options.key] = JSON.parse(Buffer.concat(stringBody).toString('utf8'));
		@@ -73,2 +73,8 @@ handled = true;
		if (contentType === options.requiredContentType \|\| contentType === `${options.requiredContentType}; charset=utf-8`) {
		// Supplement response with headers from Backend, if needed
		if (Array.isArray(options.backendHeaders) && backendResponse.headers) {
		options.backendHeaders
		.filter(header => backendResponse.headers[header])
		.forEach(header => response.set(header, backendResponse.headers[header]));
		}
		tryReadData(options, backendResponse, request, next);
		@@ -75,0 +81,0 @@ } else {

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