diff --git a/app/api/assiduites.py b/app/api/assiduites.py
index b3ed9a5804..a9451ae736 100644
--- a/app/api/assiduites.py
+++ b/app/api/assiduites.py
@@ -84,15 +84,17 @@ def assiduite_justificatifs(assiduite_id: int = None, long: bool = False):
 
 
 # etudid
-@bp.route("/assiduites/<etudid>/count", defaults={"with_query": False})
-@api_web_bp.route("/assiduites/<etudid>/count", defaults={"with_query": False})
-@bp.route("/assiduites/<etudid>/count/query", defaults={"with_query": True})
-@api_web_bp.route("/assiduites/<etudid>/count/query", defaults={"with_query": True})
-@bp.route("/assiduites/etudid/<etudid>/count", defaults={"with_query": False})
-@api_web_bp.route("/assiduites/etudid/<etudid>/count", defaults={"with_query": False})
-@bp.route("/assiduites/etudid/<etudid>/count/query", defaults={"with_query": True})
+@bp.route("/assiduites/<int:etudid>/count", defaults={"with_query": False})
+@api_web_bp.route("/assiduites/<int:etudid>/count", defaults={"with_query": False})
+@bp.route("/assiduites/<int:etudid>/count/query", defaults={"with_query": True})
+@api_web_bp.route("/assiduites/<int:etudid>/count/query", defaults={"with_query": True})
+@bp.route("/assiduites/etudid/<int:etudid>/count", defaults={"with_query": False})
 @api_web_bp.route(
-    "/assiduites/etudid/<etudid>/count/query", defaults={"with_query": True}
+    "/assiduites/etudid/<int:etudid>/count", defaults={"with_query": False}
+)
+@bp.route("/assiduites/etudid/<int:etudid>/count/query", defaults={"with_query": True})
+@api_web_bp.route(
+    "/assiduites/etudid/<int:etudid>/count/query", defaults={"with_query": True}
 )
 # nip
 @bp.route("/assiduites/nip/<nip>/count", defaults={"with_query": False})
@@ -183,14 +185,16 @@ def count_assiduites(
 
 
 # etudid
-@bp.route("/assiduites/<etudid>", defaults={"with_query": False})
-@api_web_bp.route("/assiduites/<etudid>", defaults={"with_query": False})
-@bp.route("/assiduites/<etudid>/query", defaults={"with_query": True})
-@api_web_bp.route("/assiduites/<etudid>/query", defaults={"with_query": True})
-@bp.route("/assiduites/etudid/<etudid>", defaults={"with_query": False})
-@api_web_bp.route("/assiduites/etudid/<etudid>", defaults={"with_query": False})
-@bp.route("/assiduites/etudid/<etudid>/query", defaults={"with_query": True})
-@api_web_bp.route("/assiduites/etudid/<etudid>/query", defaults={"with_query": True})
+@bp.route("/assiduites/<int:etudid>", defaults={"with_query": False})
+@api_web_bp.route("/assiduites/<int:etudid>", defaults={"with_query": False})
+@bp.route("/assiduites/<int:etudid>/query", defaults={"with_query": True})
+@api_web_bp.route("/assiduites/<int:etudid>/query", defaults={"with_query": True})
+@bp.route("/assiduites/etudid/<int:etudid>", defaults={"with_query": False})
+@api_web_bp.route("/assiduites/etudid/<int:etudid>", defaults={"with_query": False})
+@bp.route("/assiduites/etudid/<int:etudid>/query", defaults={"with_query": True})
+@api_web_bp.route(
+    "/assiduites/etudid/<int:etudid>/query", defaults={"with_query": True}
+)
 # nip
 @bp.route("/assiduites/nip/<nip>", defaults={"with_query": False})
 @api_web_bp.route("/assiduites/nip/<nip>", defaults={"with_query": False})
@@ -437,10 +441,10 @@ def count_assiduites_formsemestre(
 
 
 # etudid
-@bp.route("/assiduite/<etudid>/create", methods=["POST"])
-@api_web_bp.route("/assiduite/<etudid>/create", methods=["POST"])
-@bp.route("/assiduite/etudid/<etudid>/create", methods=["POST"])
-@api_web_bp.route("/assiduite/etudid/<etudid>/create", methods=["POST"])
+@bp.route("/assiduite/<int:etudid>/create", methods=["POST"])
+@api_web_bp.route("/assiduite/<int:etudid>/create", methods=["POST"])
+@bp.route("/assiduite/etudid/<int:etudid>/create", methods=["POST"])
+@api_web_bp.route("/assiduite/etudid/<int:etudid>/create", methods=["POST"])
 # nip
 @bp.route("/assiduite/nip/<nip>/create", methods=["POST"])
 @api_web_bp.route("/assiduite/nip/<nip>/create", methods=["POST"])
diff --git a/app/api/justificatifs.py b/app/api/justificatifs.py
index f5b804bb56..e88933880d 100644
--- a/app/api/justificatifs.py
+++ b/app/api/justificatifs.py
@@ -63,14 +63,16 @@ def justificatif(justif_id: int = None):
 
 
 # etudid
-@bp.route("/justificatifs/<etudid>", defaults={"with_query": False})
-@api_web_bp.route("/justificatifs/<etudid>", defaults={"with_query": False})
-@bp.route("/justificatifs/<etudid>/query", defaults={"with_query": True})
-@api_web_bp.route("/justificatifs/<etudid>/query", defaults={"with_query": True})
-@bp.route("/justificatifs/etudid/<etudid>", defaults={"with_query": False})
-@api_web_bp.route("/justificatifs/etudid/<etudid>", defaults={"with_query": False})
-@bp.route("/justificatifs/etudid/<etudid>/query", defaults={"with_query": True})
-@api_web_bp.route("/justificatifs/etudid/<etudid>/query", defaults={"with_query": True})
+@bp.route("/justificatifs/<int:etudid>", defaults={"with_query": False})
+@api_web_bp.route("/justificatifs/<int:etudid>", defaults={"with_query": False})
+@bp.route("/justificatifs/<int:etudid>/query", defaults={"with_query": True})
+@api_web_bp.route("/justificatifs/<int:etudid>/query", defaults={"with_query": True})
+@bp.route("/justificatifs/etudid/<int:etudid>", defaults={"with_query": False})
+@api_web_bp.route("/justificatifs/etudid/<int:etudid>", defaults={"with_query": False})
+@bp.route("/justificatifs/etudid/<int:etudid>/query", defaults={"with_query": True})
+@api_web_bp.route(
+    "/justificatifs/etudid/<int:etudid>/query", defaults={"with_query": True}
+)
 # nip
 @bp.route("/justificatifs/nip/<nip>", defaults={"with_query": False})
 @api_web_bp.route("/justificatifs/nip/<nip>", defaults={"with_query": False})
@@ -230,8 +232,8 @@ def justificatifs_formsemestre(formsemestre_id: int, with_query: bool = False):
 
 @bp.route("/justificatif/<int:etudid>/create", methods=["POST"])
 @api_web_bp.route("/justificatif/<int:etudid>/create", methods=["POST"])
-@bp.route("/justificatif/etudid/<etudid>/create", methods=["POST"])
-@api_web_bp.route("/justificatif/etudid/<etudid>/create", methods=["POST"])
+@bp.route("/justificatif/etudid/<int:etudid>/create", methods=["POST"])
+@api_web_bp.route("/justificatif/etudid/<int:etudid>/create", methods=["POST"])
 # nip
 @bp.route("/justificatif/nip/<nip>/create", methods=["POST"])
 @api_web_bp.route("/justificatif/nip/<nip>/create", methods=["POST"])