feat(server): json body size configuration (#493)

packages/server-nodejs/src/JitarServer.ts

@@ -56,18 +56,18 @@ export default class JitarServer
         this.#classLoader = new RemoteClassLoader();
         this.#serializer = SerializerBuilder.build(this.#classLoader);
 
+        this.#options = ServerOptionsReader.read();
+        this.#configuration = RuntimeConfigurationLoader.load(this.#options.config);
+        this.#logger = LogBuilder.build(this.#options.loglevel);
+
         this.#app = express();
 
-        this.#app.use(express.json());
+        this.#app.use(express.json({limit: this.#options.bodylimit }));
         this.#app.use(express.urlencoded({ extended: true }));
         this.#app.use((request, response, next) => this.#addDefaultHeaders(request, response, next));
 
         this.#app.disable('x-powered-by');
 
-        this.#options = ServerOptionsReader.read();
-        this.#configuration = RuntimeConfigurationLoader.load(this.#options.config);
-        this.#logger = LogBuilder.build(this.#options.loglevel);
-
         this.#printStartupMessage();
     }
 

packages/server-nodejs/src/configuration/ServerOptions.ts

@@ -2,25 +2,32 @@
 import { z } from 'zod';
 import { LogLevel } from '../utils/LogBuilder.js';
 
+const DEFAULT_BODY_LIMIT = 1024 * 200;
+
 export const serverOptionsSchema = z
     .object({
         loglevel: z.nativeEnum(LogLevel).optional(),
-        config: z.string().endsWith('.json')
+        config: z.string().endsWith('.json'),
+        bodylimit: z.number().positive().optional()
     })
-    .transform((value) => new ServerOptions(value.config, value.loglevel));
+    .transform((value) => new ServerOptions(value.config, value.loglevel, value.bodylimit));
 
 export default class ServerOptions
 {
     #config: string;
     #loglevel: string;
+    #bodylimit: number;
 
-    constructor(config: string, loglevel = 'info')
+    constructor(config: string, loglevel = 'info', bodylimit = DEFAULT_BODY_LIMIT)
     {
         this.#config = config;
         this.#loglevel = loglevel;
+        this.#bodylimit = bodylimit;
     }
 
     get config() { return this.#config; }
 
     get loglevel() { return this.#loglevel; }
+
+    get bodylimit() { return this.#bodylimit; }
 }