chore: refacto NestJS in modules (#308)

* chore: wip refacto in modules

* fix: rollback port

* fix: jwt guard in wrong folder

* chore: rename folder exception-filter in filters

* fix: tests are running

* fix: excessive stack depth comparing types

* fix: auth issue

* chore: move createUser in UserService

* fix: test

* fix: guards

* fix: jwt guard don't handle falsy user

server/src/utils/extract-request.ts

@@ -0,0 +1,27 @@
+import { ExecutionContext } from '@nestjs/common';
+import { GqlContextType, GqlExecutionContext } from '@nestjs/graphql';
+
+// extract request from the execution context
+export const getRequest = (context: ExecutionContext) => {
+  let request;
+
+  // if context is an http request
+  if (context.getType() === 'http') {
+    request = context.switchToHttp().getRequest();
+  } else if (context.getType<GqlContextType>() === 'graphql') {
+    // if context is a graphql request
+    const graphQLContext = GqlExecutionContext.create(context);
+
+    const { req, connection } = graphQLContext.getContext();
+
+    request =
+      connection && connection.context && connection.context.headers
+        ? connection.context
+        : req;
+  } else if (context.getType() === 'rpc') {
+    // if context is a rpc request
+    throw new Error('Not implemented');
+  }
+
+  return request;
+};