# Module `Eliom_registration.Redirection`

Eliom service registration for services that returns a redirections towards another service. See the Eliom manual for more information about [Redirections outputs](./../server-outputs.md#redirections).

The default returned HTTP code is `302 Found`. You could use the optional parameter `~options` to change this value:

- ``MovedPermanently` to return `301 Moved Permanently`.
- ``Found` to return `302 Found`.
- ``SeeOther` to return `303 See Other`.
- ``NotNodifed` to return `304 Not Modified`.
- ``UseProxy` to return `305 Use Proxy`.
- ``TemporaryRedirect` to return `307 Temporary Redirect`.
```ocaml
type 'a page = 'a redirection
```
```ocaml
type options = [ 
  | `MovedPermanently
  | `Found
  | `SeeOther
  | `NotNodifed
  | `UseProxy
  | `TemporaryRedirect
 ]
```
```ocaml
type 'a return = 'a
```
```ocaml
val register : 
  ?app:string ->
  ?scope:[< Eliom_common.scope ] ->
  ?options:options ->
  ?charset:string ->
  ?code:int ->
  ?content_type:string ->
  ?headers:Cohttp.Header.t ->
  ?secure_session:bool ->
  service:
    ('get,
      'post,
      _,
      _,
      _,
      Eliom_service.non_ext,
      Eliom_service.reg,
      _,
      _,
      _,
      'a return)
      Eliom_service.t ->
  ?error_handler:((string * exn) list -> 'a page Lwt.t) ->
  ('get -> 'post -> 'a page Lwt.t) ->
  unit
```
See `S.register`.

```ocaml
val create : 
  ?app:string ->
  ?scope:[< Eliom_common.scope ] ->
  ?options:options ->
  ?charset:string ->
  ?code:int ->
  ?content_type:string ->
  ?headers:Cohttp.Header.t ->
  ?secure_session:bool ->
  ?https:bool ->
  ?name:string ->
  ?csrf_safe:bool ->
  ?csrf_scope:[< Eliom_common.user_scope ] ->
  ?csrf_secure:bool ->
  ?max_use:int ->
  ?timeout:float ->
  meth:('m, 'gp, 'gn, 'pp, 'pn, 'tipo, 'gp_) Eliom_service.meth ->
  path:('att, 'co, 'gp_) Eliom_service.path_option ->
  ?error_handler:((string * exn) list -> 'a page Lwt.t) ->
  ('gp -> 'pp -> 'a page Lwt.t) ->
  ('gp,
    'pp,
    'm,
    'att,
    'co,
    Eliom_service.non_ext,
    Eliom_service.reg,
    'tipo,
    'gn,
    'pn,
    'a return)
    Eliom_service.t
```
See `S_with_create.create`.

```ocaml
val create_attached_get : 
  ?app:string ->
  ?scope:[< Eliom_common.scope ] ->
  ?options:options ->
  ?charset:string ->
  ?code:int ->
  ?content_type:string ->
  ?headers:Cohttp.Header.t ->
  ?secure_session:bool ->
  ?https:bool ->
  ?name:string ->
  ?csrf_safe:bool ->
  ?csrf_scope:[< Eliom_common.user_scope ] ->
  ?csrf_secure:bool ->
  ?max_use:int ->
  ?timeout:float ->
  fallback:
    (unit,
      unit,
      Eliom_service.get,
      Eliom_service.att,
      Eliom_service.non_co,
      Eliom_service.non_ext,
      _,
      [ `WithoutSuffix ],
      unit,
      unit,
      'a return)
      Eliom_service.t ->
  get_params:('gp, [ `WithoutSuffix ], 'gn) Eliom_parameter.params_type ->
  ?error_handler:((string * exn) list -> 'a page Lwt.t) ->
  ('gp -> unit -> 'a page Lwt.t) ->
  ('gp,
    unit,
    Eliom_service.get,
    Eliom_service.att,
    Eliom_service.co,
    Eliom_service.non_ext,
    Eliom_service.reg,
    [ `WithoutSuffix ],
    'gn,
    unit,
    'a return)
    Eliom_service.t
```
See `S_with_create.create_attached_get`.

```ocaml
val create_attached_post : 
  ?app:string ->
  ?scope:[< Eliom_common.scope ] ->
  ?options:options ->
  ?charset:string ->
  ?code:int ->
  ?content_type:string ->
  ?headers:Cohttp.Header.t ->
  ?secure_session:bool ->
  ?https:bool ->
  ?name:string ->
  ?csrf_safe:bool ->
  ?csrf_scope:[< Eliom_common.user_scope ] ->
  ?csrf_secure:bool ->
  ?max_use:int ->
  ?timeout:float ->
  fallback:
    ('gp,
      unit,
      Eliom_service.get,
      Eliom_service.att,
      Eliom_service.non_co,
      Eliom_service.non_ext,
      _,
      [ `WithoutSuffix ],
      'gn,
      unit,
      'a return)
      Eliom_service.t ->
  post_params:('pp, [ `WithoutSuffix ], 'pn) Eliom_parameter.params_type ->
  ?error_handler:((string * exn) list -> 'a page Lwt.t) ->
  ('gp -> 'pp -> 'a page Lwt.t) ->
  ('gp,
    'pp,
    Eliom_service.post,
    Eliom_service.att,
    Eliom_service.co,
    Eliom_service.non_ext,
    Eliom_service.reg,
    [ `WithoutSuffix ],
    'gn,
    'pn,
    'a return)
    Eliom_service.t
```
See `S_with_create.create_attached_post`.

```ocaml
val send : 
  ?options:options ->
  ?charset:string ->
  ?code:int ->
  ?content_type:string ->
  ?headers:Ocsigen_header.t ->
  _ page ->
  _ kind Lwt.t
```
More polymorphic version of `Eliom_registration_sigs.send`