create function and route to modify user claims

.vscode/settings.json

@@ -1,7 +1,5 @@
 {
   "editor.tabSize": 2,
-  "editor.rulers": [
-      80
-  ],
+  "editor.rulers": [80],
   "editor.formatOnSave": true
-}
+}

backend/.gitignore

@@ -0,0 +1 @@
+serviceAccountKey.json

backend/src/index.ts

@@ -4,6 +4,7 @@ import DocRouter from "./customers/views";
 import swaggerUI from "swagger-ui-express";
 import spec from "../api-spec.json";
 import { dbConnect } from "./database";
+import userRouter from "./users/views";
 
 const app = express();
 
@@ -15,6 +16,7 @@ app.use("/api-docs", swaggerUI.serve, swaggerUI.setup(spec));
  * Sub-routers for our main router, we should have one sub-router per "entity" in the application
  */
 app.use("/clusters", DocRouter);
+app.use("/users", userRouter);
 
 /**
  * Some dummy routes to illustrate express syntax

backend/src/users/controllers.ts

@@ -1 +1,27 @@
-// Controllers here, following the pattern in ../customers/controllers.ts
+import * as admin from 'firebase-admin'
+
+const serviceAccount = require('../../serviceAccountKey.json')
+
+admin.initializeApp({
+  credential: admin.credential.cert(serviceAccount)
+})
+
+/**
+ * Modify the claim of a user given user ID and new claim
+ */
+export function changeClaim(uid: string, new_claim: number) {
+  const claims = {
+    mobile_entry: new_claim == 0,
+    web_entry: new_claim == 1,
+    evaluator: new_claim == 2,
+    admin: new_claim == 3
+  };
+  admin.auth().setCustomUserClaims(uid, claims)
+  .catch(
+    () => {
+      console.log("ERROR: User with uid " + uid + " not found.");
+    }
+  )
+}
+
+export default { changeClaim };

backend/src/users/views.ts

@@ -1,6 +1,8 @@
 // use Controllers here, just as we did in ../users/controllers.ts
 
 import { Router } from "express";
+import { successJson } from "../utils/jsonResponses";
+import UserController from "./controllers";
 
 const userRouter = Router();
 
@@ -12,4 +14,16 @@ userRouter.post("/", (req, res) => {
   res.send(req.body);
 });
 
+/** Modify an existing user's claims to be new_claim */
+userRouter.post("/modify/", (req, res) => {
+  const { uid, new_claim } = req.body;
+  res
+    .status(200)
+    .send(
+      successJson(
+        UserController.changeClaim(uid, new_claim)
+    )
+  );
+});
+
 export default userRouter;

package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "firebase-admin": "^11.11.0"
+  }
+}