add local proxy

utils/local-proxy/index.js

@@ -0,0 +1,83 @@
+const express = require("express");
+const { createProxyMiddleware } = require("http-proxy-middleware");
+
+const conf = {};
+conf.PORT = process.env.EXPLORER_PORT || 1234;
+conf.AZURE_TENANT_ID = process.env.AZURE_TENANT_ID || "72f988bf-86f1-41af-91ab-2d7cd011db47";
+conf.EMULATOR_ENDPOINT = process.env.EMULATOR_ENDPOINT || "https://localhost:8081/";
+
+const app = express();
+
+app.all("*", (req, res, next) => {
+  const start = new Date();
+  res.append("Access-Control-Allow-Origin", "*");
+  res.append("Access-Control-Allow-Credentials", "true");
+  res.append("Access-Control-Max-Age", "3600");
+  res.append("Access-Control-Allow-Headers", "*");
+  res.append("Access-Control-Allow-Methods", "*");
+  next();
+  const ms = new Date() - start;
+  console.log(`[${req.method}] ${req.url} -> ${res.statusCode} [${ms}ms]`);
+});
+
+app.get("/_ready", (_, res) => {
+  if (compilationComplete) {
+    res.status(200).send("Compilation complete.");
+  } else {
+    res.status(503).send("Compilation not complete.");
+  }
+});
+
+const bypass = (req, res) => {
+  if (req.method === "OPTIONS") {
+    res.statusCode = 200;
+    res.send();
+  }
+};
+
+const apiProxy = createProxyMiddleware({
+  target: "https://main.documentdb.ext.azure.com",
+  changeOrigin: true,
+  logLevel: "debug",
+});
+
+app.use("/api", bypass, apiProxy);
+
+const proxyProxy = createProxyMiddleware({
+  target: "https://main.documentdb.ext.azure.com",
+  changeOrigin: true,
+  secure: false,
+  logLevel: "debug",
+  pathRewrite: { "^/proxy": "" },
+  router: (req) => {
+    let newTarget = req.headers["x-ms-proxy-target"];
+    return newTarget;
+  },
+});
+
+app.use("/proxy", proxyProxy);
+
+const explorerProxy = createProxyMiddleware({
+  target: conf.EMULATOR_ENDPOINT,
+  changeOrigin: true,
+  secure: false,
+  logLevel: "debug",
+});
+
+app.use("/_explorer", explorerProxy);
+app.use("/explorerProxy", explorerProxy);
+
+const tenantProxy = createProxyMiddleware({
+  target: "https://login.microsoftonline.com/",
+  changeOrigin: true,
+  secure: false,
+  logLevel: "debug",
+});
+
+app.use(`/${conf.AZURE_TENANT_ID}`, tenantProxy);
+
+app.use(express.static("dist"));
+
+console.log(`Expecting emulator on [${conf.EMULATOR_ENDPOINT}]`);
+console.log(`Listening on [${conf.PORT}]`);
+app.listen(conf.PORT);