diff --git a/src/interface/api.py b/src/interface/api.py
index a3765b1b8..b90b01dc0 100644
--- a/src/interface/api.py
+++ b/src/interface/api.py
@@ -4,6 +4,8 @@ from __future__ import (
 
 import inspect
 import re
+import codecs
+
 import fastapi
 import pydantic
 import starlette
@@ -132,12 +134,17 @@ class Interface(BaseInterface):
                         else ...  # required
                     )
 
-                    if param.name in paths:
-                        param_default = fastapi.Path(param_default, **param_kwargs)
+                    if param_kwargs.pop("file", False):
+                        new_param = param.replace(
+                            annotation=fastapi.UploadFile,
+                            default=param_default
+                        )
+                    elif param.name in paths:
+                        new_param = param.replace(default=fastapi.Path(param_default, **param_kwargs))
                     else:
-                        param_default = fastapi.Query(param_default, **param_kwargs)
+                        new_param = param.replace(default=fastapi.Query(param_default, **param_kwargs))
 
-                    override_params.append(param.replace(default=param_default))
+                    override_params.append(new_param)
 
             def hook_results(*args, **kwargs):
                 new_kwargs = {}
@@ -147,6 +154,10 @@ class Interface(BaseInterface):
                     if isinstance(value, pydantic.BaseModel):
                         # Turn pydantic model back to individual kwargs
                         new_kwargs = value.dict() | new_kwargs
+                    elif isinstance(value, starlette.datastructures.UploadFile):
+                        # views expects a opened file (fastapi UploadFile is a bytes SpooledTemporaryFile)
+                        new_kwargs[name] = codecs.iterdecode(value.file, 'utf-8')
+                        opened_files.append(name)
                     else:
                         new_kwargs[name] = value
 
@@ -158,6 +169,10 @@ class Interface(BaseInterface):
                     raise fastapi.exceptions.RequestValidationError([ErrorWrapper(ValueError(e.strerror), ("query", "test"))])
                 except:
                     raise
+                finally:
+                    # I guess we need to close the opened file
+                    for kwarg_name in opened_files:
+                        kwargs[kwarg_name].file.close()
 
             route_func = override_function(
                 func,
diff --git a/src/interface/cli.py b/src/interface/cli.py
index 0e597c03a..555943f49 100644
--- a/src/interface/cli.py
+++ b/src/interface/cli.py
@@ -17,6 +17,7 @@ from yunohost.interface.base import (
     get_params_doc,
     override_function,
 )
+from yunohost.utils.error import YunohostValidationError
 
 
 def parse_cli_command(command: str) -> tuple[str, list[str]]:
@@ -53,31 +54,37 @@ class Interface(BaseInterface):
             command, args = parse_cli_command(command_def)
 
             for param in params:
+                param_default = (
+                    param.default
+                    if not param.default == param.empty
+                    else ...  # required
+                )
+
                 param_kwargs = local_data.get(param.name, {})
                 param_kwargs["help"] = params_doc.get(param.name, None)
 
                 if param_kwargs.pop("deprecated", False):
                     param_kwargs["rich_help_panel"] = "Deprecated Options"
 
-                if param.name not in args and not param_kwargs.get("hidden", False):
-                    param_kwargs["prompt"] = True
-
-                if param.name == "password":
-                    param_kwargs["confirmation_prompt"] = True
-                    param_kwargs["hide_input"] = True
+                if param_kwargs.get("prompt", False):
+                    if param.name == "password":
+                        param_kwargs["confirmation_prompt"] = True
+                        param_kwargs["hide_input"] = True
 
                 # Populate default param value with typer.Argument|Option
-                param_default = (
-                    param.default
-                    if not param.default == param.empty
-                    else ...  # required
-                )
-                if param.name in args:
-                    param_default = typer.Argument(param_default, **param_kwargs)
+                if param_kwargs.pop("file", False):
+                    new_param = param.replace(
+                        annotation=typer.FileText,
+                        default=param_default
+                    )
+                elif param.kind == param.VAR_POSITIONAL:
+                    new_param = param
+                elif param.name in args:
+                    new_param = param.replace(default=typer.Argument(param_default, **param_kwargs))
                 else:
-                    param_default = typer.Option(param_default, **param_kwargs)
+                    new_param = param.replace(default=typer.Option(param_default, **param_kwargs))
 
-                override_params.append(param.replace(default=param_default))
+                override_params.append(new_param)
 
             def hook_results(*args, **kwargs):
                 try: