diff --git a/swh/web/ui/controller.py b/swh/web/ui/controller.py
index a50df7740..c893ec2d4 100644
--- a/swh/web/ui/controller.py
+++ b/swh/web/ui/controller.py
@@ -1,265 +1,265 @@
 # Copyright (C) 2015  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 
 from flask import render_template, request, flash
 
 from flask.ext.api.decorators import set_renderers
 from flask.ext.api.renderers import HTMLRenderer
 
 from swh.core.hashutil import ALGORITHMS
 from swh.web.ui.main import app
 from swh.web.ui import service, renderers
 from swh.web.ui.exc import BadInputExc, NotFoundExc
 
 
 hash_filter_keys = ALGORITHMS
 
 
 @app.route('/')
 @set_renderers(HTMLRenderer)
 def main():
     """Home page
 
     """
     flash('This Web app is still work in progress, use at your own risk',
           'warning')
     # return redirect(url_for('about'))
     return render_template('home.html')
 
 
 @app.route('/about')
 @set_renderers(HTMLRenderer)
 def about():
     return render_template('about.html')
 
 
 @app.route('/search')
 @set_renderers(HTMLRenderer)
 def search():
     """Search for hashes in swh-storage.
 
     """
     q = request.args.get('q', '')
     env = {'q': q, 'message': '', 'found': None}
 
     try:
         if q:
             env.update(service.lookup_hash(q))
     except BadInputExc:
         env['message'] = 'Error: invalid query string'
 
     return render_template('search.html', **env)
 
 
 @app.route('/uploadnsearch', methods=['GET', 'POST'])
 @set_renderers(HTMLRenderer)
 def uploadnsearch():
     """Upload and search for hashes in swh-storage.
 
     """
     env = {'filename': None, 'message': '', 'found': None}
 
     if request.method == 'POST':
         file = request.files['filename']
         try:
             filename, sha1, found = service.upload_and_search(file)
             message = 'The file %s with hash %s has%sbeen found.' % (
                 filename,
                 sha1,
                 ' ' if found else ' not ')
 
             env.update({
                 'filename': filename,
                 'sha1': sha1,
                 'found': found,
                 'message': message
             })
         except BadInputExc:
             env['message'] = 'Error: invalid query string'
 
     return render_template('upload_and_search.html', **env)
 
 
 def _origin_seen(hash, data):
     """Given an origin, compute a message string with the right information.
 
     Args:
         origin: a dictionary with keys:
           - origin: a dictionary with type and url keys
           - occurrence: a dictionary with a validity range
 
     Returns:
         message as a string
 
     """
     if data is None:
         return 'Content with hash %s is unknown as of now.' % hash
 
     origin_type = data['origin_type']
     origin_url = data['origin_url']
     revision = data['revision']
     branch = data['branch']
     path = data['path']
 
     return """The content with hash %s has been seen on origin with type '%s'
 at url '%s'. The revision was identified at '%s' on branch '%s'.
 The file's path referenced was '%s'.""" % (hash,
                                            origin_type,
                                            origin_url,
                                            revision,
                                            branch,
                                            path)
 
 
 @app.route('/browse/content/<hash>:<sha>')
 @set_renderers(HTMLRenderer)
 def content(hash, sha):
     """Show content information.
 
     Args:
         hash: hash according to HASH_ALGO, where HASH_ALGO is
     one of: sha1, sha1_git, sha256. This means that several different URLs (at
     least one per HASH_ALGO) will point to the same content
         sha: the sha with 'hash' format
 
     Returns:
         The content's information at sha1_git
 
     """
     env = {'hash': hash, 'sha': sha}
 
     if hash not in hash_filter_keys:
         message = 'The checksum must be one of sha1, sha1_git, sha256'
     else:
         q = "%s:%s" % (hash, sha)
         found = service.lookup_hash(q)['found']
         if not found:
             message = "Hash %s was not found." % sha
         else:
             origin = service.lookup_hash_origin(q)
             message = _origin_seen(hash, origin)
     env['message'] = message
     return render_template('content.html', **env)
 
 
 @app.route('/api/1/stat/counters')
 def api_stats():
     """Return statistics as a JSON object"""
     return service.stat_counters()
 
 
 @app.errorhandler(ValueError)
 def value_error_as_bad_request(error):
     """Compute a bad request and add body as payload.
 
     """
     return renderers.error_response('Bad request', 400, error)
 
 
 @app.errorhandler(NotFoundExc)
 def value_not_found(error):
     """Compute a not found and add body as payload.
 
     """
     return renderers.error_response('Not found', 404, error)
 
 
 @app.route('/api/1/search/<string:q>/')
 def api_search(q):
     """Return search results as a JSON object"""
     return {'found': service.lookup_hash(q)}
 
 
 def _api_lookup(criteria, lookup_fn, error_msg_if_not_found):
     """Factorize function regarding the api to lookup for data."""
     res = lookup_fn(criteria)
     if not res:
         raise NotFoundExc(error_msg_if_not_found)
     return res
 
 
 @app.route('/api/1/origin/<int:origin_id>')
 def api_origin(origin_id):
     """Return information about origin."""
     return _api_lookup(
         origin_id, lookup_fn=service.lookup_origin,
         error_msg_if_not_found='Origin with id %s not found.' % origin_id)
 
 
 @app.route('/api/1/person/<int:person_id>')
 def api_person(person_id):
     """Return information about person."""
     return _api_lookup(
         person_id, lookup_fn=service.lookup_person,
         error_msg_if_not_found='Person with id %s not found.' % person_id)
 
 
 @app.route('/api/1/release/<string:sha1_git>')
 def api_release(sha1_git):
     """Return information about release with id sha1_git."""
     error_msg = 'Release with sha1_git %s not found.' % sha1_git
     return _api_lookup(
         sha1_git,
         lookup_fn=service.lookup_release,
         error_msg_if_not_found=error_msg)
 
 
 @app.route('/api/1/revision/<string:sha1_git>')
 def api_revision(sha1_git):
     """Return information about revision with id sha1_git.
 
     """
     error_msg = 'Revision with sha1_git %s not found.' % sha1_git
     return _api_lookup(
         sha1_git,
         lookup_fn=service.lookup_revision,
         error_msg_if_not_found=error_msg)
 
 
 @app.route('/api/1/directory/<string:sha1_git>')
 def api_directory(sha1_git):
     """Return information about release with id sha1_git."""
     recursive_flag = request.args.get('recursive', False)
     directory_entries = service.lookup_directory(sha1_git,
                                                  recursive_flag)
     if not directory_entries:
         raise NotFoundExc('Directory with sha1_git %s not found.' % sha1_git)
-    return {'directory_entries': list(directory_entries)}
+    return list(directory_entries)
 
 
 @app.route('/api/1/content/<string:q>/')
 def api_content_with_details(q):
     """Return content information up to its origin if found.
 
     Args:
         q is of the form algo_hash:hash
 
     Raises:
         BadInputExc in case of unknown algo_hash or bad hash
         NotFoundExc if the content is not found.
 
     """
     content = service.lookup_content(q)
     if not content:
         raise NotFoundExc('Content with %s not found.' % q)
 
     origin_detail = service.lookup_hash_origin(q)
     output = {'origin': origin_detail if origin_detail else None}
     for key, value in content.items():
         output[key] = value
     return output
 
 
 @app.route('/api/1/uploadnsearch/', methods=['POST'])
 def api_uploadnsearch():
     """Upload the file's content in the post body request.
        Compute the hash and determine if it exists in the storage.
     """
     file = request.files['filename']
     filename, sha1, found = service.upload_and_search(file)
     return {'sha1': sha1,
             'filename': filename,
             'found': found}
diff --git a/swh/web/ui/tests/test_controller.py b/swh/web/ui/tests/test_controller.py
index ad3925966..01d1ef605 100644
--- a/swh/web/ui/tests/test_controller.py
+++ b/swh/web/ui/tests/test_controller.py
@@ -1,528 +1,528 @@
 # Copyright (C) 2015  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import unittest
 import json
 import yaml
 
 from nose.tools import istest
 from unittest.mock import patch, MagicMock
 
 from swh.web.ui.tests import test_app
 
 
 class ApiTestCase(unittest.TestCase):
 
     @classmethod
     def setUpClass(cls):
         cls.app, _, _ = test_app.init_app()
 
     @istest
     def info(self):
         # when
         rv = self.app.get('/about')
 
         self.assertEquals(rv.status_code, 200)
         self.assertIn(b'About', rv.data)
 
     # @istest
     def search_1(self):
         # when
         rv = self.app.get('/search')
 
         self.assertEquals(rv.status_code, 200)  # check this api
         self.assertRegexpMatches(rv.data, b'name=q value=>')
 
     # @istest
     def search_2(self):
         # when
         rv = self.app.get('/search?q=one-hash-to-look-for:another-one')
 
         self.assertEquals(rv.status_code, 200)  # check this api
         self.assertRegexpMatches(
             rv.data,
             b'name=q value=one-hash-to-look-for:another-one')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_content_with_details(self, mock_service):
         # given
         mock_service.lookup_hash_origin.return_value = {
             'origin_type': 'git',
             'origin_url': 'https://url/user/repo',
             'branch': 'master',
             'revision': '40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03',
             'path': '/some/path/to/somewhere',
         }
 
         mock_service.lookup_content.return_value = {
             'data': 'some content data',
             'sha1': '40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03',
             'sha1_git': 'b4e8f472ffcb01a03875b26e462eb568739f6882',
             'sha256': '83c0e67cc80f60caf1fcbec2d84b0ccd7968b3be4735637006560'
             'cde9b067a4f',
             'length': 17,
             'status': 'visible'
         }
 
         # when
         rv = self.app.get(
             '/api/1/content/sha1:40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03/')
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'origin': {
                 'origin_type': 'git',
                 'origin_url': 'https://url/user/repo',
                 'branch': 'master',
                 'revision': '40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03',
                 'path': '/some/path/to/somewhere',
             },
             'data': 'some content data',
             'sha1': '40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03',
             'sha1_git': 'b4e8f472ffcb01a03875b26e462eb568739f6882',
             'sha256': '83c0e67cc80f60caf1fcbec2d84b0ccd7968b3be4735637006560c'
             'de9b067a4f',
             'length': 17,
             'status': 'visible'
         })
 
         mock_service.lookup_hash_origin.assert_called_once_with(
             'sha1:40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03')
         mock_service.lookup_content.assert_called_once_with(
             'sha1:40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_content_origin_not_found(self, mock_service):
         # given
         mock_service.lookup_hash_origin.return_value = None
         mock_service.lookup_content.return_value = {
             'data': 'some content data..',
             'sha1': '40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03',
             'sha1_git': 'b4e8f472ffcb01a03875b26e462eb568739f6882',
             'sha256': '83c0e67cc80f60caf1fcbec2d84b0ccd7968b3be4735637006560'
             'cde9b067a4f',
             'length': 19,
             'status': 'absent'
         }
 
         # when
         rv = self.app.get('/api/1/content/sha1_git:b4e8f472ffcb01a03875b26e4'
                           '62eb568739f6882/')
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'origin': None,
             'data': 'some content data..',
             'sha1': '40e71b8614fcd89ccd17ca2b1d9e66c5b00a6d03',
             'sha1_git': 'b4e8f472ffcb01a03875b26e462eb568739f6882',
             'sha256': '83c0e67cc80f60caf1fcbec2d84b0ccd7968b3be4735637006560c'
             'de9b067a4f',
             'length': 19,
             'status': 'absent'
         })
 
         mock_service.lookup_hash_origin.assert_called_once_with(
             'sha1_git:b4e8f472ffcb01a03875b26e462eb568739f6882')
         mock_service.lookup_content.assert_called_once_with(
             'sha1_git:b4e8f472ffcb01a03875b26e462eb568739f6882')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_content_not_found_as_json(self, mock_service):
         # given
         mock_service.lookup_content.return_value = None
         mock_service.lookup_hash_origin = MagicMock()
 
         # when
         rv = self.app.get(
             '/api/1/content/sha256:83c0e67cc80f60caf1fcbec2d84b0ccd7968b3'
             'be4735637006560c/')
 
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Content with sha256:83c0e67cc80f60caf1fcbec2d84b0ccd79'
             '68b3be4735637006560c not found.'
         })
 
         mock_service.lookup_content.assert_called_once_with(
             'sha256:83c0e67cc80f60caf1fcbec2d84b0ccd7968b3'
             'be4735637006560c')
         mock_service.lookup_hash_origin.called = False
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_content_not_found_as_yaml(self, mock_service):
         # given
         mock_service.lookup_content.return_value = None
         mock_service.lookup_hash_origin = MagicMock()
 
         # when
         rv = self.app.get(
             '/api/1/content/sha256:83c0e67cc80f60caf1fcbec2d84b0ccd7968b3'
             'be4735637006560c/',
             headers={'accept': 'application/yaml'})
 
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/yaml')
 
         response_data = yaml.load(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Content with sha256:83c0e67cc80f60caf1fcbec2d84b0ccd79'
             '68b3be4735637006560c not found.'
         })
 
         mock_service.lookup_content.assert_called_once_with(
             'sha256:83c0e67cc80f60caf1fcbec2d84b0ccd7968b3'
             'be4735637006560c')
         mock_service.lookup_hash_origin.called = False
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_search(self, mock_service):
         # given
         mock_service.lookup_hash.return_value = True
 
         # when
         rv = self.app.get('/api/1/search/sha1:blah/')
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {'found': True})
 
         mock_service.lookup_hash.assert_called_once_with('sha1:blah')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_search_as_yaml(self, mock_service):
         # given
         mock_service.lookup_hash.return_value = True
 
         # when
         rv = self.app.get('/api/1/search/sha1:halb/',
                           headers={'Accept': 'application/yaml'})
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/yaml')
 
         response_data = yaml.load(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {'found': True})
 
         mock_service.lookup_hash.assert_called_once_with('sha1:halb')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_search_not_found(self, mock_service):
         # given
         mock_service.lookup_hash.return_value = False
 
         # when
         rv = self.app.get('/api/1/search/sha1:halb/')
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {'found': False})
 
         mock_service.lookup_hash.assert_called_once_with('sha1:halb')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_1_stat_counters_raise_error(self, mock_service):
         # given
         mock_service.stat_counters.side_effect = ValueError(
             'voluntary error to check the bad request middleware.')
         # when
         rv = self.app.get('/api/1/stat/counters')
         # then
         self.assertEquals(rv.status_code, 400)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'voluntary error to check the bad request middleware.'})
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_1_stat_counters(self, mock_service):
         # given
         stub_stats = {
             "content": 1770830,
             "directory": 211683,
             "directory_entry_dir": 209167,
             "directory_entry_file": 1807094,
             "directory_entry_rev": 0,
             "entity": 0,
             "entity_history": 0,
             "occurrence": 0,
             "occurrence_history": 19600,
             "origin": 1096,
             "person": 0,
             "release": 8584,
             "revision": 7792,
             "revision_history": 0,
             "skipped_content": 0
         }
         mock_service.stat_counters.return_value = stub_stats
 
         # when
         rv = self.app.get('/api/1/stat/counters')
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, stub_stats)
 
         mock_service.stat_counters.assert_called_once_with()
 
     @patch('swh.web.ui.controller.service')
     @patch('swh.web.ui.controller.request')
     @istest
     def api_uploadnsearch(self, mock_request, mock_service):
         # given
         mock_request.files = {'filename': 'simple-filename'}
         mock_service.upload_and_search.return_value = (
             'simple-filename', 'some-hex-sha1', False)
 
         # when
         rv = self.app.post('/api/1/uploadnsearch/')
 
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {'filename': 'simple-filename',
                                           'sha1': 'some-hex-sha1',
                                           'found': False})
 
         mock_service.upload_and_search.assert_called_once_with(
             'simple-filename')
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_origin(self, mock_service):
         # given
         stub_origin = {
             'id': 1234,
             'lister': 'uuid-lister-0',
             'project': 'uuid-project-0',
             'url': 'ftp://some/url/to/origin/0',
             'type': 'ftp'
         }
         mock_service.lookup_origin.return_value = stub_origin
 
         # when
         rv = self.app.get('/api/1/origin/1234')
 
         # then
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, stub_origin)
 
         mock_service.lookup_origin.assert_called_with(1234)
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_origin_not_found(self, mock_service):
         # given
         mock_service.lookup_origin.return_value = None
 
         # when
         rv = self.app.get('/api/1/origin/4321')
 
         # then
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/json')
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Origin with id 4321 not found.'
         })
 
         mock_service.lookup_origin.assert_called_with(4321)
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_release(self, mock_service):
         # given
         stub_release = {
             'id': 'release-0',
             'revision': 'revision-sha1',
             'author_name': 'author release name',
             'author_email': 'author@email',
         }
 
         mock_service.lookup_release.return_value = stub_release
 
         # when
         rv = self.app.get('/api/1/release/release-0')
 
         # then
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, stub_release)
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_release_not_found(self, mock_service):
         # given
         mock_service.lookup_release.return_value = None
 
         # when
         rv = self.app.get('/api/1/release/release-0')
 
         # then
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Release with sha1_git release-0 not found.'
         })
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_revision(self, mock_service):
         # given
         stub_revision = {
             'id': '18d8be353ed3480476f032475e7c233eff7371d5',
             'directory': '7834ef7e7c357ce2af928115c6c6a42b7e2a44e6',
             'author_name': 'Software Heritage',
             'author_email': 'robot@softwareheritage.org',
             'committer_name': 'Software Heritage',
             'committer_email': 'robot@softwareheritage.org',
             'message': 'synthetic revision message',
             'date_offset': 0,
             'committer_date_offset': 0,
             'parents': [],
             'type': 'tar',
             'synthetic': True,
             'metadata': {
                 'original_artifact': [{
                     'archive_type': 'tar',
                     'name': 'webbase-5.7.0.tar.gz',
                     'sha1': '147f73f369733d088b7a6fa9c4e0273dcd3c7ccd',
                     'sha1_git': '6a15ea8b881069adedf11feceec35588f2cfe8f1',
                     'sha256': '401d0df797110bea805d358b85bcc1ced29549d3d73f'
                     '309d36484e7edf7bb912'
                 }]
             },
         }
         mock_service.lookup_revision.return_value = stub_revision
 
         # when
         rv = self.app.get('/api/1/revision/revision-0')
 
         # then
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, stub_revision)
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_revision_not_found(self, mock_service):
         # given
         mock_service.lookup_revision.return_value = None
 
         # when
         rv = self.app.get('/api/1/revision/revision-0')
 
         # then
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Revision with sha1_git revision-0 not found.'})
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_person(self, mock_service):
         # given
         stub_person = {
             'id': '198003',
             'name': 'Software Heritage',
             'email': 'robot@softwareheritage.org',
         }
         mock_service.lookup_person.return_value = stub_person
 
         # when
         rv = self.app.get('/api/1/person/198003')
 
         # then
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, stub_person)
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_person_not_found(self, mock_service):
         # given
         mock_service.lookup_person.return_value = None
 
         # when
         rv = self.app.get('/api/1/person/666')
 
         # then
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Person with id 666 not found.'})
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_directory(self, mock_service):
         # given
         stub_directory = [{
             'sha1_git': '18d8be353ed3480476f032475e7c233eff7371d5',
         }]
         mock_service.lookup_directory.return_value = stub_directory
 
         # when
         rv = self.app.get('/api/1/directory/'
                           '18d8be353ed3480476f032475e7c233eff7371d5')
 
         # then
         self.assertEquals(rv.status_code, 200)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
-        self.assertEquals(response_data, {'directory_entries': stub_directory})
+        self.assertEquals(response_data, stub_directory)
 
     @patch('swh.web.ui.controller.service')
     @istest
     def api_directory_not_found(self, mock_service):
         # given
         mock_service.lookup_directory.return_value = []
 
         # when
         rv = self.app.get('/api/1/directory/'
                           '66618d8be353ed3480476f032475e7c233eff737')
 
         # then
         self.assertEquals(rv.status_code, 404)
         self.assertEquals(rv.mimetype, 'application/json')
 
         response_data = json.loads(rv.data.decode('utf-8'))
         self.assertEquals(response_data, {
             'error': 'Directory with sha1_git '
             '66618d8be353ed3480476f032475e7c233eff737 not found.'})