Routes => Fix call of functions from routes

ExpressAPI/src/routes/AssignmentRoutes.ts

@@ -46,11 +46,11 @@ class AssignmentRoutes implements RoutesManager {
     };
 
     registerOnBackend(backend: Express) {
-        backend.get('/assignments/:assignmentNameOrUrl', SecurityMiddleware.check(true), this.getAssignment);
-        backend.post('/assignments', SecurityMiddleware.check(true, SecurityCheckType.TEACHING_STAFF), ParamsValidatorMiddleware.validate(this.assignmentValidator), this.createAssignment);
+        backend.get('/assignments/:assignmentNameOrUrl', SecurityMiddleware.check(true), this.getAssignment.bind(this));
+        backend.post('/assignments', SecurityMiddleware.check(true, SecurityCheckType.TEACHING_STAFF), ParamsValidatorMiddleware.validate(this.assignmentValidator), this.createAssignment.bind(this));
 
-        backend.patch('/assignments/:assignmentNameOrUrl/publish', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.publishAssignment);
-        backend.patch('/assignments/:assignmentNameOrUrl/unpublish', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.unpublishAssignment);
+        backend.patch('/assignments/:assignmentNameOrUrl/publish', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.publishAssignment.bind(this));
+        backend.patch('/assignments/:assignmentNameOrUrl/unpublish', SecurityMiddleware.check(true, SecurityCheckType.ASSIGNMENT_STAFF), this.unpublishAssignment.bind(this));
     }
 
     // Get an assignment by its name or gitlab url

ExpressAPI/src/routes/BaseRoutes.ts

@@ -6,8 +6,8 @@ import RoutesManager   from '../express/RoutesManager';
 
 class BaseRoutes implements RoutesManager {
     registerOnBackend(backend: Express) {
-        backend.get('/', this.homepage);
-        backend.get('/health_check', this.healthCheck);
+        backend.get('/', this.homepage.bind(this));
+        backend.get('/health_check', this.healthCheck.bind(this));
     }
 
     private async homepage(req: express.Request, res: express.Response) {

ExpressAPI/src/routes/GitlabRoutes.ts

@@ -8,7 +8,7 @@ import GitlabManager      from '../managers/GitlabManager';
 
 class GitlabRoutes implements RoutesManager {
     registerOnBackend(backend: Express) {
-        backend.get('/gitlab/project/:gitlabProjectIdOrNamespace/checkTemplateAccess', SecurityMiddleware.check(true, SecurityCheckType.TEACHING_STAFF), this.checkTemplateAccess);
+        backend.get('/gitlab/project/:gitlabProjectIdOrNamespace/checkTemplateAccess', SecurityMiddleware.check(true, SecurityCheckType.TEACHING_STAFF), this.checkTemplateAccess.bind(this));
     }
 
     private async checkTemplateAccess(req: express.Request, res: express.Response) {

ExpressAPI/src/routes/SessionRoutes.ts

@@ -32,9 +32,9 @@ class SessionRoutes implements RoutesManager {
     };
 
     registerOnBackend(backend: Express) {
-        backend.post('/login', ParamsValidatorMiddleware.validate(this.loginValidator), this.login);
-        backend.post('/refresh_tokens', ParamsValidatorMiddleware.validate(this.refreshTokensValidator), this.refreshTokens);
-        backend.get('/test_session', SecurityMiddleware.check(true), this.testSession);
+        backend.post('/login', ParamsValidatorMiddleware.validate(this.loginValidator), this.login.bind(this));
+        backend.post('/refresh_tokens', ParamsValidatorMiddleware.validate(this.refreshTokensValidator), this.refreshTokens.bind(this));
+        backend.get('/test_session', SecurityMiddleware.check(true), this.testSession.bind(this));
     }
 
     private async login(req: express.Request, res: express.Response) {