From e9c7fed73a2a5fa7ba26c6823dab2aadc48f8ceb Mon Sep 17 00:00:00 2001 From: Jacob Bolda Date: Wed, 28 Aug 2024 16:06:13 -0500 Subject: [PATCH 1/2] foundation simulator proxy and save --- .changes/foundation-proxy-save.md | 5 + package-lock.json | 201 ++++++++++++++++---- packages/foundation/package.json | 1 + packages/foundation/src/index.ts | 8 + packages/foundation/src/middleware/proxy.ts | 60 ++++++ 5 files changed, 234 insertions(+), 41 deletions(-) create mode 100644 .changes/foundation-proxy-save.md create mode 100644 packages/foundation/src/middleware/proxy.ts diff --git a/.changes/foundation-proxy-save.md b/.changes/foundation-proxy-save.md new file mode 100644 index 00000000..09eacf11 --- /dev/null +++ b/.changes/foundation-proxy-save.md @@ -0,0 +1,5 @@ +--- +"@simulacrum/foundation-simulator": minor:enhance +--- + +Add option the proxy to real API and save JSON responses in `./src/serve` directory. diff --git a/package-lock.json b/package-lock.json index 1206b162..826cd44f 100644 --- a/package-lock.json +++ b/package-lock.json @@ -3399,6 +3399,15 @@ "hoist-non-react-statics": "^3.3.0" } }, + "node_modules/@types/http-proxy": { + "version": "1.17.15", + "resolved": "https://registry.npmjs.org/@types/http-proxy/-/http-proxy-1.17.15.tgz", + "integrity": "sha512-25g5atgiVNTIv0LBDTg1H74Hvayx0ajtJPLLcYE3whFv75J0pWNtOBzaXJQgDTmrX1bx5U9YC2w/n65BN1HwRQ==", + "license": "MIT", + "dependencies": { + "@types/node": "*" + } + }, "node_modules/@types/js-yaml": { "version": "4.0.5", "resolved": "https://registry.npmjs.org/@types/js-yaml/-/js-yaml-4.0.5.tgz", @@ -3441,7 +3450,6 @@ "version": "20.14.2", "resolved": "https://registry.npmjs.org/@types/node/-/node-20.14.2.tgz", "integrity": "sha512-xyu6WAMVwv6AKFLB+e/7ySZVr/0zLCzOa7rSpq6jNwpqOrUbcACDWC+53d4n2QHOnDou0fbIsg8wZu/sxrnI4Q==", - "devOptional": true, "license": "MIT", "dependencies": { "undici-types": "~5.26.4" @@ -4184,7 +4192,6 @@ "version": "3.0.3", "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz", "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==", - "dev": true, "license": "MIT", "dependencies": { "fill-range": "^7.1.1" @@ -4897,7 +4904,6 @@ "version": "4.3.6", "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz", "integrity": "sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==", - "dev": true, "license": "MIT", "dependencies": { "ms": "2.1.2" @@ -5191,6 +5197,12 @@ "node": ">=6" } }, + "node_modules/eventemitter3": { + "version": "4.0.7", + "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz", + "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==", + "license": "MIT" + }, "node_modules/execa": { "version": "8.0.1", "resolved": "https://registry.npmjs.org/execa/-/execa-8.0.1.tgz", @@ -5513,7 +5525,6 @@ "version": "7.1.1", "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz", "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==", - "dev": true, "license": "MIT", "dependencies": { "to-regex-range": "^5.0.1" @@ -5522,6 +5533,26 @@ "node": ">=8" } }, + "node_modules/follow-redirects": { + "version": "1.15.6", + "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.6.tgz", + "integrity": "sha512-wWN62YITEaOpSK584EZXJafH1AGpO8RVgElfkuXbTOrPX4fIfOyEpW/CsiNd8JdYrAoOvafRTOEnvsO++qCqFA==", + "funding": [ + { + "type": "individual", + "url": "https://github.com/sponsors/RubenVerborgh" + } + ], + "license": "MIT", + "engines": { + "node": ">=4.0" + }, + "peerDependenciesMeta": { + "debug": { + "optional": true + } + } + }, "node_modules/form-data-encoder": { "version": "1.7.2", "resolved": "https://registry.npmjs.org/form-data-encoder/-/form-data-encoder-1.7.2.tgz", @@ -5958,6 +5989,20 @@ "node": ">=0.6" } }, + "node_modules/http-proxy": { + "version": "1.18.1", + "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.1.tgz", + "integrity": "sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==", + "license": "MIT", + "dependencies": { + "eventemitter3": "^4.0.0", + "follow-redirects": "^1.0.0", + "requires-port": "^1.0.0" + }, + "engines": { + "node": ">=8.0.0" + } + }, "node_modules/http-proxy-agent": { "version": "6.1.1", "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-6.1.1.tgz", @@ -5972,6 +6017,23 @@ "node": ">= 14" } }, + "node_modules/http-proxy-middleware": { + "version": "3.0.0", + "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-3.0.0.tgz", + "integrity": "sha512-36AV1fIaI2cWRzHo+rbcxhe3M3jUDCNzc4D5zRl57sEWRAxdXYtw7FSQKYY6PDKssiAKjLYypbssHk+xs/kMXw==", + "license": "MIT", + "dependencies": { + "@types/http-proxy": "^1.17.10", + "debug": "^4.3.4", + "http-proxy": "^1.18.1", + "is-glob": "^4.0.1", + "is-plain-obj": "^3.0.0", + "micromatch": "^4.0.5" + }, + "engines": { + "node": "^14.15.0 || ^16.10.0 || >=18.0.0" + } + }, "node_modules/https-proxy-agent": { "version": "6.2.1", "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-6.2.1.tgz", @@ -6147,7 +6209,6 @@ "node_modules/is-extglob": { "version": "2.1.1", "integrity": "sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=", - 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"dev": true + "version": "2.3.1", + "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz", + "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==" }, "pkg-types": { "version": "1.1.1", @@ -15457,6 +15573,11 @@ "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==", "dev": true }, + "requires-port": { + "version": "1.0.0", + "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz", + "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==" + }, "reselect": { "version": "4.1.8", "resolved": "https://registry.npmjs.org/reselect/-/reselect-4.1.8.tgz", @@ -15979,7 +16100,6 @@ "version": "5.0.1", "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz", "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==", - "dev": true, "requires": { "is-number": "^7.0.0" } @@ -16121,8 +16241,7 @@ "undici-types": { "version": "5.26.5", "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz", - "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==", - "devOptional": true + "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==" }, "unixify": { "version": "1.0.0", diff --git a/packages/foundation/package.json b/packages/foundation/package.json index 869f6af9..c1cd54f5 100644 --- a/packages/foundation/package.json +++ b/packages/foundation/package.json @@ -41,6 +41,7 @@ "ajv-formats": "^3.0.1", "express": "^4.19.2", "fdir": "^6.2.0", + "http-proxy-middleware": "^3.0.0", "openapi-backend": "^5.10.6", "openapi-merge": "^1.3.2", "starfx": "^0.12.0" diff --git a/packages/foundation/src/index.ts b/packages/foundation/src/index.ts index aa2febda..7e2fad4c 100644 --- a/packages/foundation/src/index.ts +++ b/packages/foundation/src/index.ts @@ -28,6 +28,7 @@ import type { ExtendSimulationSchema, } from "./store/schema"; import type { RecursivePartial } from "./store/types"; +import { apiProxy } from "./middleware/proxy"; type SimulationHandlerFunctions = ( context: OpenAPIBackendContext, @@ -50,12 +51,14 @@ export function createFoundationSimulationServer< ExtendedSimulationSelectors >({ port = 9000, + proxyAndSave, serveJsonFiles, openapi, extendStore, extendRouter, }: { port: number; + proxyAndSave: string; serveJsonFiles?: string; openapi?: { document: Document | (Document | RecursivePartial)[]; @@ -91,6 +94,11 @@ export function createFoundationSimulationServer< }) { return () => { let app = express(); + + if (process.env.SIM_PROXY || proxyAndSave) { + app.use(apiProxy(proxyAndSave)); + } + app.use(express.json()); let simulationStore = createSimulationStore(extendStore); diff --git a/packages/foundation/src/middleware/proxy.ts b/packages/foundation/src/middleware/proxy.ts new file mode 100644 index 00000000..249ed4d7 --- /dev/null +++ b/packages/foundation/src/middleware/proxy.ts @@ -0,0 +1,60 @@ +import { + createProxyMiddleware, + responseInterceptor, + type Options as ProxyOptions, +} from "http-proxy-middleware"; +import fsPromise from "node:fs/promises"; +import path from "node:path"; + +export function apiProxy(proxyAndSave: string) { + const options: ProxyOptions = { + logger: console, + // secure: false, + changeOrigin: true, // needed for virtual hosted sites + ws: true, + target: process.env.SIM_PROXY ?? proxyAndSave, + /** + * IMPORTANT: avoid res.end being called automatically + **/ + selfHandleResponse: true, // res.end() will be called internally by responseInterceptor() + on: { + proxyRes: responseInterceptor( + async (responseBuffer, proxyRes, req, res) => { + const filename = `./src/serve${req.url ?? "log"}.json`; + + // check response can parse as json + let jsonResponse; + try { + jsonResponse = JSON.parse(responseBuffer.toString("utf8")); + } catch (error) { + console.error(`failed to parse return as JSON from ${req.url}`); + return responseBuffer; + } + + // create folder for said response + try { + await fsPromise.mkdir(path.dirname(filename), { + recursive: true, + }); + } catch (error) { + console.error( + `unable to create folders: ${path.dirname(filename)}` + ); + return responseBuffer; + } + + try { + await fsPromise.writeFile( + filename, + JSON.stringify(jsonResponse, null, 2) + ); + } catch (error) { + console.error(error); + } + return responseBuffer; + } + ), + }, + }; + return createProxyMiddleware(options); +} From d9d52790b9aa054174ece01a81c4f40efd405e87 Mon Sep 17 00:00:00 2001 From: Jacob Bolda Date: Thu, 12 Sep 2024 16:59:43 -0500 Subject: [PATCH 2/2] remove process --- packages/foundation/src/middleware/proxy.ts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packages/foundation/src/middleware/proxy.ts b/packages/foundation/src/middleware/proxy.ts index 249ed4d7..75c5fdba 100644 --- a/packages/foundation/src/middleware/proxy.ts +++ b/packages/foundation/src/middleware/proxy.ts @@ -12,7 +12,7 @@ export function apiProxy(proxyAndSave: string) { // secure: false, changeOrigin: true, // needed for virtual hosted sites ws: true, - target: process.env.SIM_PROXY ?? proxyAndSave, + target: proxyAndSave, /** * IMPORTANT: avoid res.end being called automatically **/