feat(microservice): add custom user-agent header (#45)

should allow to e.g. block requests coming from the proxy by identifying them via the user-agent

backend/Dockerfile

@@ -32,6 +32,6 @@ FROM node:18-alpine As production
 COPY --chown=node:node --from=build /usr/src/app/node_modules ./node_modules
 COPY --chown=node:node --from=build /usr/src/app/dist ./dist
 
-CMD [ "node", "dist/index.js" ]
+CMD [ "node", "dist/src/index.js" ]
 
 EXPOSE 80

backend/src/header-adjustment.ts

@@ -1,5 +1,6 @@
 import { ConnectionDetails } from "./connection-details";
 import { IncomingHttpHeaders } from "http";
+import { name, version } from "../package.json";
 
 export class HeaderAdjustment {
   private static headersToRemove = ["authorization"];
@@ -12,6 +13,10 @@ export class HeaderAdjustment {
         continue;
       }
 
+      if (key.toLowerCase() === "user-agent") {
+        keysToAdd[key] = `${name}/${version}`;
+      }
+
       if (!key.startsWith(this.headerPrefix)) {
         continue;
       }

backend/tsconfig.json

@@ -13,7 +13,8 @@
     "isolatedModules": false,
     "esModuleInterop": true,
     "skipLibCheck": true,
-    "strict": false
+    "strict": false,
+    "resolveJsonModule": true
   },
   "include": ["**/*.d.ts", "**/*.ts"],
   "exclude": ["node_modules"]