# 3.12. HTTP Resource Handlers

## 3.12.1. Global HTTP Handlers

`[httpd_global_handlers]`

  These HTTP resources are provided for CouchDB server root level.

  `/`

        [httpd_global_handlers]
        / = {couch_httpd_misc_handlers, handle_welcome_req, <<"Welcome">>}

  `favicon.ico`

    The favicon handler looks for favicon.ico file within specified directory:

        [httpd_global_handlers]
        favicon.ico = {couch_httpd_misc_handlers, handle_favicon_req, "/usr/share/couchdb/www"}

  `_active_tasks`

        [httpd_global_handlers]
        _active_tasks = {couch_httpd_misc_handlers, handle_task_status_req}

  `_all_dbs`

    Provides a list of all server’s databases:

        [httpd_global_handlers]
        _all_dbs = {couch_httpd_misc_handlers, handle_all_dbs_req}

    Note

    Sometimes you don’t want to disclose database names for everyone, but you also don’t like/want/able to set up any proxies in front of CouchDB. Removing this handler disables `_all_dbs` resource and there will be no way to get list of available databases.

    The same also is true for other resource handlers.

  `_config`

    Provides resource to work with CouchDB config remotely. Any config changes that was made via HTTP API are applied automatically on fly and doesn’t requires server instance to be restarted:

        [httpd_global_handlers]
        _config = {couch_httpd_misc_handlers, handle_config_req}

  `_replicate`

    Provides an API to run temporary replications:

        [httpd_global_handlers]
        _replicate = {couch_replicator_httpd, handle_req}

  `_restart`

    Provides an API to restart CouchDB (only on the node-local port).

    > [httpd_global_handlers] _restart = {couch_httpd_misc_handlers, handle_restart_req}

  `_session`

    Provides a resource with information about the current user’s session:

        [httpd_global_handlers]
        _session = {couch_httpd_auth, handle_session_req}

  `_stats`

        [httpd_global_handlers]
        _stats = {couch_httpd_stats_handlers, handle_stats_req}

  `_utils`

    The _utils handler serves Fauxton’s web administration page:

        [httpd_global_handlers]
        _utils = {couch_httpd_misc_handlers, handle_utils_dir_req, "/usr/share/couchdb/www"}

    In similar way, you may set up custom handler to let CouchDB serve any static files.

  `_uuids`

    Provides a resource to get UUIDs generated by CouchDB:

        [httpd_global_handlers]
        _uuids = {couch_httpd_misc_handlers, handle_uuids_req}

    This is useful when your client environment isn’t capable of providing truly random IDs (web browsers e.g.).

## 3.12.2. Database HTTP Handlers

`[httpd_db_handlers]`

  These HTTP resources are available on every CouchDB database.

  `_all_docs`

        [httpd_db_handlers]
        _all_docs = {couch_mrview_http, handle_all_docs_req}

  `_local_docs`

        [httpd_db_handlers]
        _local_docs = {couch_mrview_http, handle_local_docs_req}

  `_design_docs`

        [httpd_db_handlers]
        _design_docs = {couch_mrview_http, handle_design_docs_req}

  `_changes`

        [httpd_db_handlers]
        _changes = {couch_httpd_db, handle_changes_req}

  `_compact`

        [httpd_db_handlers]
        _compact = {couch_httpd_db, handle_compact_req}

  `_design`

        [httpd_db_handlers]
        _design = {couch_httpd_db, handle_design_req}

  `_view_cleanup`

        [httpd_db_handlers]
        _view_cleanup = {couch_mrview_http, handle_cleanup_req}

## 3.12.3. Design Documents HTTP Handlers

`[httpd_design_handlers]`

These HTTP resources are provided for design documents.

> `_compact`

>       [httpd_design_handlers]
>       _compact = {couch_mrview_http, handle_compact_req}

> `_info`

>       [httpd_design_handlers]
>       _info = {couch_mrview_http, handle_info_req}

> `_list`

>       [httpd_design_handlers]
>       _list = {couch_mrview_show, handle_view_list_req}

> `_rewrite`

>       [httpd_design_handlers]
>       _rewrite = {couch_httpd_rewrite, handle_rewrite_req}

> `_show`

>       [httpd_design_handlers]
>       _show = {couch_mrview_show, handle_doc_show_req}

> `_update`

>       [httpd_design_handlers]
>       _update = {couch_mrview_show, handle_doc_update_req}

> `_view`

>       [httpd_design_handlers]
>       _view = {couch_mrview_http, handle_view_req}