├── .gitignore
├── COPYING
├── README.md
├── api.py
├── openrailwaymap_api
├── __init__.py
├── abstract_api.py
├── facility_api.py
└── milestone_api.py
├── prepare_facilities.sql
├── prepare_milestones.sql
├── tests
├── testcases.yml
└── tests.py
├── update_facilities.sql
└── update_milestones.sql
/.gitignore:
--------------------------------------------------------------------------------
1 | .*.swp
2 | __pycache__/
3 | *.pyc
4 |
--------------------------------------------------------------------------------
/COPYING:
--------------------------------------------------------------------------------
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573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation. If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 |
579 | If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 |
584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
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610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | **This is experimental code. It is not ready for production yet.**
2 |
3 | # OpenRailwayMap API
4 |
5 | This is a reimplementation of the OpenRailwayMap API in Python with performance as main development goal.
6 | Its public REST API is not exactly the same as the old PHP implementation but it should do the job good enough
7 | it serves to the website www.openrailwaymap.org.
8 |
9 | ## Features
10 |
11 | * Facility search
12 | * Search facilities (stations, halts, tram stops, yards, sidings, crossovers) including disused, abandoned,
13 | razed and proposed ones and those under construction by name or reference.
14 | * Fulltext search using PostgreSQL's full text search.
15 | * Fast (< 100 ms per request)
16 | * Mileage search: Search the combination of line number and mileage.
17 |
18 | ## Delevopment goals
19 |
20 | The code of this application should be easy to read and it should be fast. We avoid unnecessary overhead
21 | and aim to make as much use as possible of indexes in the database.
22 |
23 | ## API
24 |
25 | ### Facilities
26 |
27 | URL: `/facility?`
28 |
29 | The facility endpoint returns detail of a facility (station, junction, yard, …) by its name, UIC reference or reference.
30 |
31 | The request must contain exactly one of the following parameters because they are mutually exclusive:
32 |
33 | * `q=`: search term (will be looked up in all `name=*` tags, `railway:ref=*` and `uic_ref=*`).
34 | * `name=`: search term (name search only)
35 | * `ref=`: serach by official facility reference number/code only
36 | * `uic_ref=`: search by UIC reference number of a station (uses OSM tag `uic_ref=*`)
37 |
38 | Optional parameter:
39 |
40 | * `limit=`: maximum number of results, optional, defaults to 20, must not exceed 200
41 |
42 | It takes the first keyword of (name,uicref,ref) and the optional the operator to search for the data.
43 |
44 | The API returns JSON formatted data with following fields:
45 |
46 | * `latitude`: latitude
47 | * `longitude`: longitude
48 | * `osm_id`: OSM node ID
49 | * `rank`: an importance rank calculated by taking the public transport route relations into account using this station/halt
50 | * All OSM tags present on this object. The following tags are very often in use. See the OSM wiki and Taginfo for a more comprehensive list of possible tags.
51 | * `name`: name
52 | * `uic_name`: UIC station name
53 | * `railway:ref`: reference assigned by the operator of the infrastructure
54 | * `railway`: type of the facility following [Tagging rules](https://wiki.openstreetmap.org/wiki/OpenRailwayMap/Tagging#Operating_Sites)), e.g. `station`, `halt`, `junction`, `yard`.
55 | * `operator`: operator of the infrastructure
56 |
57 | Example:
58 |
59 | Request: `GET https://api.openrailwaymap.org/v2/facility?name=Karlsruhe&limit=1`
60 |
61 | Response:
62 |
63 | ```json
64 | [
65 | {
66 | "osm_id": 2574283615,
67 | "name": "Karlsruhe Hauptbahnhof",
68 | "railway": "station",
69 | "ref": null,
70 | "iata": "KJR",
71 | "uic_ref": "8000191",
72 | "website": "https://www.bahnhof.de/bahnhof-de/bahnhof/Karlsruhe-Hbf-1019530",
73 | "operator": "DB Station&Service AG",
74 | "wikidata": "Q688541",
75 | "iata:note": "AIRail Flughafen",
76 | "max_level": "1",
77 | "min_level": "-1",
78 | "platforms": "7",
79 | "ref:IFOPT": "de:08212:90",
80 | "wikipedia": "de:Karlsruhe Hauptbahnhof",
81 | "short_name": "Karlsruhe Hbf",
82 | "wheelchair": "yes",
83 | "railway:ref": "RK",
84 | "ref:station": "3107",
85 | "internet_access": "wlan",
86 | "public_transport": "station",
87 | "internet_access:fee": "no",
88 | "internet_access:ssid": "Telekom",
89 | "internet_access:operator": "Deutsche Telekom AG",
90 | "railway:station_category": "1",
91 | "internet_access:fee:description": "30min kostenlos",
92 | "latitude": 8.4020518,
93 | "longitude": 48.9936163996939,
94 | "rank": 176
95 | }
96 | ]
97 | ```
98 |
99 | ### Milestones
100 |
101 | The milestone endpoint returns the position of milestones or other items such as signals or level crossings with a mapped position on a line.
102 |
103 | The API will return the features within a maximum distance of 10 km (hardcoded). The presence of an `operator=*` tag on the tracks is honoured, it will be used to
104 | distinguish reference numbers used by different infrastructure operators and/or in different countries.
105 |
106 | Mileage is read from the OSM tags `railway:position=*` and `railway:position:exact=*` with precedence of the exact mileage. The tracks must be tagged with a reference number (OSM tag `ref=*`).
107 |
108 | The tracks must not tagged with `service=*` (this condition does not apply to tracks with `usage=industrial/military/test`).
109 |
110 | Negative mileage is supported but gaps in mileage or duplicated positions (if railway lines are reroute) are not supported. For example, you cannot query for `16.8+200` or things like that.
111 |
112 | URL: `/milestone?`
113 |
114 | Mandatory parameters:
115 |
116 | * `ref=`: reference number of the railway route the mileage refers to (in this case, route meas lines as infrastructure, not the services using the tracks), mandatory
117 | * `position=`: position (can be negative), mandatory
118 |
119 | Optional parameter:
120 |
121 | * `limit=`: maximum number of results, optional, defaults to 2, must not exceed 200
122 |
123 | The API returns JSON formatted data with following fields:
124 |
125 | * `osm_id`: OSM node ID
126 | * `latitude`: latitude
127 | * `longitude`: longitude
128 | * `position`: Mileage of the feature
129 | * `railway`: type of the facility following [Tagging rules](https://wiki.openstreetmap.org/wiki/OpenRailwayMap/Tagging#Operating_Sites)), e.g. `milestone`, `level_crossing`, `signal`.
130 | * `ref`: Reference number of the railway line the feature is located on.
131 | * `operator`: operator of the infrastructure
132 |
133 | Example:
134 |
135 | Request: `GET https://api.openrailwaymap.org/v2/milestone?ref=4201&position=18.4`
136 |
137 | Response:
138 |
139 | ```json
140 | [
141 | {
142 | "osm_id": 3479484133,
143 | "railway": "milestone",
144 | "position": 18.405,
145 | "latitude": 8.7064769,
146 | "longitude": 49.0315238996845,
147 | "ref": "4201",
148 | "operator": "Albtal-Verkehrs-Gesellschaft mbH"
149 | },
150 | {
151 | "osm_id": 3479484134,
152 | "railway": "milestone",
153 | "position": 18.2,
154 | "latitude": 8.7045853,
155 | "longitude": 49.0327703996842,
156 | "ref": "4201",
157 | "operator": "Albtal-Verkehrs-Gesellschaft mbH"
158 | }
159 | ]
160 | ```
161 |
162 | ### Network length
163 |
164 | The previous (v1) version of the API provided a `/networklength` entpoint. It returned the length of the railway networks of the infrastructure operators.
165 | Calls to the endpoint cause long database queries. The endpoint was not used in the frontend. Therefore, this endpoint is not available in version 2.
166 |
167 | ## Setup
168 |
169 | ### Dependencies and Deployment
170 |
171 | This API runs as a Python WSGI application. You need a WSGI server and a web server. For development
172 | purposes, you can just run `python3 api.py serve`.
173 |
174 | Dependencies:
175 |
176 | * Python 3
177 | * [Werkzeug](https://werkzeug.palletsprojects.com/)
178 | * [Psycopg2](https://www.psycopg.org/docs/)
179 |
180 | ### Installation
181 |
182 | Install the dependencies listed above:
183 |
184 | ```shell
185 | apt install python3-werkzeug python3-psycopg2
186 | ```
187 |
188 | If you want to deploy it on a server (not just run in development mode locally):
189 |
190 | ```shell
191 | apt install apache2 libapache2-mod-wsgi-py3
192 | ```
193 |
194 | Import OpenStreetMap data as described in the map style setup guide. You have to follow the following sections only:
195 |
196 | * Dependencies (Kosmtik, Nik4 and PyYAML are not required)
197 | * Database Setup
198 | * Load OSM Data into the Database
199 |
200 | Create database views:
201 |
202 | ```shell
203 | sudo -u osmimport psql -d gis -f prepare_facilities.sql
204 | sudo -u osmimport psql -d gis -f prepare_milestone.sql
205 |
206 | Create a database user for the user running the API (either the user running Apache – often called www-data or httpd – or your user account in dev mode) and grant read permissions to this user:
207 |
208 | ```shell
209 | createuser $USERNAME
210 | sudo -u postgres psql -d gis -c "GRANT SELECT ON TABLES IN SCHEMA PUBLIC TO $USERNAME;"
211 | ```
212 |
213 | ### Database updates
214 |
215 | If you apply OSM diff updates to the database, do not forget to run the `update_*.sql` scripts afterwards to refresh the materialized views:
216 |
217 | ```shell
218 | sudo -u osmimport psql -d gis -f update_facilities.sql
219 | sudo -u osmimport psql -d gis -f update_milestone.sql
220 | ```
221 |
222 | ## License
223 |
224 | This project is licensed under the terms of GPLv2 or newer. You can find a copy of version 3 of the license in the [COPYING](COPYING) file.
225 |
--------------------------------------------------------------------------------
/api.py:
--------------------------------------------------------------------------------
1 | #! /usr/bin/env python3
2 | # SPDX-License-Identifier: GPL-2.0-or-later
3 |
4 | import psycopg2
5 | import psycopg2.extras
6 | import json
7 | import sys
8 | from werkzeug.exceptions import HTTPException, NotFound, InternalServerError
9 | from werkzeug.routing import Map, Rule
10 | from werkzeug.wrappers import Request, Response
11 | from openrailwaymap_api.facility_api import FacilityAPI
12 | from openrailwaymap_api.milestone_api import MilestoneAPI
13 |
14 | def connect_db():
15 | conn = psycopg2.connect('dbname=gis')
16 | psycopg2.extras.register_hstore(conn)
17 | return conn
18 |
19 | class OpenRailwayMapAPI:
20 |
21 | db_conn = connect_db()
22 |
23 | def __init__(self):
24 | self.url_map = Map([
25 | Rule('/facility', endpoint=FacilityAPI, methods=('GET',)),
26 | Rule('/milestone', endpoint=MilestoneAPI, methods=('GET',)),
27 | ])
28 |
29 | def ensure_db_connection_alive(self):
30 | if self.db_conn.closed != 0:
31 | self.db_conn = connect_db()
32 |
33 | def dispatch_request(self, environ, start_response):
34 | request = Request(environ)
35 | urls = self.url_map.bind_to_environ(environ)
36 | response = None
37 | try:
38 | endpoint, args = urls.match()
39 | self.ensure_db_connection_alive()
40 | response = endpoint(self.db_conn)(request.args)
41 | except HTTPException as e:
42 | return e
43 | except Exception as e:
44 | return InternalServerError()
45 | finally:
46 | if not response:
47 | self.db_conn.close()
48 | self.db_conn = connect_db()
49 | return response
50 |
51 | def wsgi_app(self, environ, start_response):
52 | request = Request(environ)
53 | response = self.dispatch_request(request)
54 | return response(environ, start_response)
55 |
56 |
57 | def application(environ, start_response):
58 | openrailwaymap_api = OpenRailwayMapAPI()
59 | response = openrailwaymap_api.dispatch_request(environ, start_response)
60 | return response(environ, start_response)
61 |
62 |
63 | if __name__ == '__main__':
64 | openrailwaymap_api = OpenRailwayMapAPI()
65 | if len(sys.argv) == 2 and sys.argv[1] == 'serve':
66 | from werkzeug.serving import run_simple
67 | run_simple('127.0.0.1', 5000, application, use_debugger=True, use_reloader=True)
68 | else:
69 | sys.stderr.write('ERROR: Missing argument \'serve\'. Cannot start in standalone development mode this way.\n')
70 | exit(1)
71 |
--------------------------------------------------------------------------------
/openrailwaymap_api/__init__.py:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/OpenRailwayMap/OpenRailwayMap-api/6f8177de48a385b1f1a721f64aa6f6bed1fca59d/openrailwaymap_api/__init__.py
--------------------------------------------------------------------------------
/openrailwaymap_api/abstract_api.py:
--------------------------------------------------------------------------------
1 | import json
2 | from werkzeug.wrappers import Response
3 |
4 |
5 | class AbstractAPI:
6 | '''Methods used by multiple parts of the OpenRailwayMap API'''
7 |
8 | MAX_LIMIT = 200
9 |
10 | def build_response(self):
11 | return Response(json.dumps(self.data), status=self.status_code, mimetype='application/json', headers=[('Access-Control-Allow-Origin', '*')])
12 |
13 | def build_result_item_dict(self, description, row):
14 | item = {}
15 | for i in range(len(row)):
16 | if description[i].name == 'tags' and row[i]:
17 | for k, v in row[i].items():
18 | item[k] = v
19 | else:
20 | item[description[i].name] = row[i]
21 | return item
22 |
--------------------------------------------------------------------------------
/openrailwaymap_api/facility_api.py:
--------------------------------------------------------------------------------
1 | # SPDX-License-Identifier: GPL-2.0-or-later
2 | from openrailwaymap_api.abstract_api import AbstractAPI
3 |
4 | class FacilityAPI(AbstractAPI):
5 | def __init__(self, db_conn):
6 | self.db_conn = db_conn
7 | self.search_args = ['q', 'name', 'ref', 'uic_ref']
8 | self.data = []
9 | self.status_code = 200
10 | self.limit = 20
11 |
12 | def eliminate_duplicates(self, data):
13 | data.sort(key=lambda k: k['osm_id'])
14 | i = 1
15 | while i < len(data):
16 | if data[i]['osm_id'] == data[i-1]['osm_id']:
17 | data.pop(i)
18 | i += 1
19 | if len(data) > self.limit:
20 | return data[:self.limit]
21 | return data
22 |
23 | def __call__(self, args):
24 | data = []
25 | # Validate search arguments
26 | search_args_count = 0
27 | for search_arg in self.search_args:
28 | if search_arg in args and args[search_arg]:
29 | search_args_count += 1
30 | if search_args_count > 1:
31 | self.data = {'type': 'multiple_query_args', 'error': 'More than one argument with a search term provided.', 'detail': 'Provide only one of the following arguments: {}'.format(', '.join(self.search_args))}
32 | self.status_code = 400
33 | return self.build_response()
34 | elif search_args_count == 0:
35 | self.data = {'type': 'no_query_arg', 'error': 'No argument with a search term provided.', 'detail': 'Provide one of the following arguments: {}'.format(', '.join(self.search_args))}
36 | self.status_code = 400
37 | return self.build_response()
38 | if 'limit' in args:
39 | try:
40 | self.limit = int(args['limit'])
41 | except ValueError:
42 | self.data = {'type': 'limit_not_integer', 'error': 'Invalid paramter value provided for parameter "limit".', 'detail': 'The provided limit cannot be parsed as an integer value.'}
43 | self.status_code = 400
44 | return self.build_response()
45 | if self.limit > self.MAX_LIMIT:
46 | self.data = {'type': 'limit_too_high', 'error': 'Invalid paramter value provided for parameter "limit".', 'detail': 'Limit is too high. Please set up your own instance to query everything.'}
47 | self.status_code = 400
48 | return self.build_response()
49 | if args.get('name'):
50 | self.data = self.search_by_name(args['name'])
51 | if args.get('ref'):
52 | self.data = self.search_by_ref(args['ref'])
53 | if args.get('uic_ref'):
54 | self.data = self.search_by_uic_ref(args['uic_ref'])
55 | if args.get('q'):
56 | self.data = self.eliminate_duplicates(self.search_by_name(args['q']) + self.search_by_ref(args['q']) + self.search_by_uic_ref(args['q']))
57 | return self.build_response()
58 |
59 | def query_has_no_wildcards(self, q):
60 | if '%' in q or '_' in q:
61 | return False
62 | return True
63 |
64 | def search_by_name(self, q):
65 | if not self.query_has_no_wildcards(q):
66 | self.status_code = 400
67 | return {'type': 'wildcard_in_query', 'error': 'Wildcard in query.', 'detail': 'Query contains any of the wildcard characters: %_'}
68 | with self.db_conn.cursor() as cursor:
69 | data = []
70 | # We do not sort the result although we use DISTINCT ON because osm_id is sufficient to sort out duplicates.
71 | sql_query = """SELECT
72 | {fields}, latitude, longitude, rank
73 | FROM (
74 | SELECT DISTINCT ON (osm_id)
75 | {fields}, latitude, longitude, rank
76 | FROM (
77 | SELECT
78 | {fields}, ST_X(ST_Transform(geom, 4326)) AS latitude, ST_Y(ST_Transform(geom, 4326)) AS longitude, openrailwaymap_name_rank(phraseto_tsquery('simple', unaccent(openrailwaymap_hyphen_to_space(%s))), terms, route_count, railway, station) AS rank
79 | FROM openrailwaymap_facilities_for_search
80 | WHERE terms @@ phraseto_tsquery('simple', unaccent(openrailwaymap_hyphen_to_space(%s)))
81 | ) AS a
82 | ) AS b
83 | ORDER BY rank DESC NULLS LAST
84 | LIMIT %s;""".format(fields=self.sql_select_fieldlist())
85 | cursor.execute(sql_query, (q, q, self.limit))
86 | results = cursor.fetchall()
87 | for r in results:
88 | data.append(self.build_result_item_dict(cursor.description, r))
89 | return data
90 |
91 | def _search_by_ref(self, search_key, ref):
92 | with self.db_conn.cursor() as cursor:
93 | data = []
94 | # We do not sort the result although we use DISTINCT ON because osm_id is sufficient to sort out duplicates.
95 | sql_query = """SELECT DISTINCT ON (osm_id)
96 | {}, ST_X(ST_Transform(geom, 4326)) AS latitude, ST_Y(ST_Transform(geom, 4326)) AS longitude
97 | FROM openrailwaymap_ref
98 | WHERE {} = %s
99 | LIMIT %s;""".format(self.sql_select_fieldlist(), search_key)
100 | cursor.execute(sql_query, (ref, self.limit))
101 | results = cursor.fetchall()
102 | for r in results:
103 | data.append(self.build_result_item_dict(cursor.description, r))
104 | return data
105 |
106 | def search_by_ref(self, ref):
107 | return self._search_by_ref("railway_ref", ref)
108 |
109 | def search_by_uic_ref(self, ref):
110 | return self._search_by_ref("uic_ref", ref)
111 |
112 | def sql_select_fieldlist(self):
113 | return "osm_id, name, railway, ref, tags"
114 |
--------------------------------------------------------------------------------
/openrailwaymap_api/milestone_api.py:
--------------------------------------------------------------------------------
1 | # SPDX-License-Identifier: GPL-2.0-or-later
2 | from openrailwaymap_api.abstract_api import AbstractAPI
3 |
4 | class MilestoneAPI(AbstractAPI):
5 | def __init__(self, db_conn):
6 | self.db_conn = db_conn
7 | self.route_ref = None
8 | self.position = None
9 | self.data = []
10 | self.status_code = 200
11 | self.limit = 2
12 |
13 | def __call__(self, args):
14 | data = []
15 | # Validate search arguments
16 | ref = args.get('ref')
17 | position = args.get('position')
18 | if ref is None or position is None:
19 | self.data = {'type': 'no_query_arg', 'error': 'One or multiple mandatory parameters are missing.', 'detail': 'You have to provide both "ref" and "position".'}
20 | self.status_code = 400
21 | return self.build_response()
22 | self.route_ref = args.get('ref')
23 | try:
24 | self.position = float(args.get('position'))
25 | except ValueError:
26 | self.data = {'type': 'position_not_float', 'error': 'Invalid value provided for parameter "position".', 'detail': 'The provided position cannot be parsed as a float.'}
27 | self.status_code = 400
28 | return self.build_response()
29 | if 'limit' in args:
30 | try:
31 | self.limit = int(args['limit'])
32 | except ValueError:
33 | self.data = {'type': 'limit_not_integer', 'error': 'Invalid paramter value provided for parameter "limit".', 'detail': 'The provided limit cannot be parsed as an integer value.'}
34 | self.status_code = 400
35 | return self.build_response()
36 | if self.limit > self.MAX_LIMIT:
37 | self.data = {'type': 'limit_too_high', 'error': 'Invalid paramter value provided for parameter "limit".', 'detail': 'Limit is too high. Please set up your own instance to query everything.'}
38 | self.status_code = 400
39 | return self.build_response()
40 | self.data = self.get_milestones()
41 | return self.build_response()
42 |
43 | def get_milestones(self):
44 | with self.db_conn.cursor() as cursor:
45 | data = []
46 | # We do not sort the result although we use DISTINCT ON because osm_id is sufficient to sort out duplicates.
47 | sql_query = """SELECT
48 | osm_id,
49 | railway,
50 | position,
51 | ST_X(geom) AS latitude,
52 | ST_Y(geom) As longitude,
53 | route_ref AS ref,
54 | operator
55 | FROM (
56 | SELECT
57 | osm_id,
58 | railway,
59 | position,
60 | geom,
61 | route_ref,
62 | operator,
63 | -- We use rank(), not row_number() to get the closest and all second closest in cases like this:
64 | -- A B x C
65 | -- where A is as far from the searched location x than C.
66 | rank() OVER (PARTITION BY operator ORDER BY error) AS grouped_rank
67 | FROM (
68 | SELECT
69 | -- Sort out duplicates which origin from tracks being splitted at milestones
70 | DISTINCT ON (osm_id)
71 | osm_id[1] AS osm_id,
72 | railway[1] AS railway,
73 | position,
74 | geom[1] AS geom,
75 | route_ref,
76 | operator,
77 | error
78 | FROM (
79 | SELECT
80 | array_agg(osm_id) AS osm_id,
81 | array_agg(railway) AS railway,
82 | position AS position,
83 | array_agg(geom) AS geom,
84 | unnest(ST_ClusterWithin(geom, 25)) AS geom_collection,
85 | route_ref,
86 | operator,
87 | error
88 | FROM (
89 | SELECT
90 | m.osm_id,
91 | m.railway,
92 | m.position,
93 | ST_Transform(m.geom, 4326) AS geom,
94 | t.ref AS route_ref,
95 | t.tags->'operator' AS operator,
96 | ABS(%s - m.position) AS error
97 | FROM openrailwaymap_milestones AS m
98 | JOIN openrailwaymap_tracks_with_ref AS t
99 | ON t.geom && m.geom AND ST_Intersects(t.geom, m.geom) AND t.ref = %s
100 | WHERE m.position BETWEEN (%s - 10.0)::FLOAT AND (%s + 10.0)::FLOAT
101 | -- sort by distance from searched location, then osm_id for stable sorting
102 | ORDER BY error ASC, m.osm_id
103 | ) AS milestones
104 | GROUP BY position, error, route_ref, operator
105 | ) AS unique_milestones
106 | ) AS top_of_array
107 | ) AS ranked
108 | WHERE grouped_rank <= %s
109 | LIMIT %s;"""
110 | cursor.execute(sql_query, (self.position, self.route_ref, self.position, self.position, self.limit, self.limit))
111 | results = cursor.fetchall()
112 | for r in results:
113 | data.append(self.build_result_item_dict(cursor.description, r))
114 | return data
115 |
--------------------------------------------------------------------------------
/prepare_facilities.sql:
--------------------------------------------------------------------------------
1 | -- SPDX-License-Identifier: GPL-2.0-or-later
2 | CREATE EXTENSION IF NOT EXISTS unaccent;
3 |
4 | CREATE OR REPLACE FUNCTION openrailwaymap_hyphen_to_space(str TEXT) RETURNS TEXT AS $$
5 | BEGIN
6 | RETURN regexp_replace(str, '(\w)-(\w)', '\1 \2', 'g');
7 | END;
8 | $$ LANGUAGE plpgsql IMMUTABLE;
9 |
10 | CREATE MATERIALIZED VIEW IF NOT EXISTS openrailwaymap_ref AS
11 | SELECT DISTINCT ON (osm_id)
12 | osm_id,
13 | name,
14 | tags,
15 | railway,
16 | tags->'station' as station,
17 | ref,
18 | tags->'railway:ref' as railway_ref,
19 | tags->'uic_ref' as uic_ref,
20 | way AS geom
21 | FROM planet_osm_point
22 | WHERE
23 | (tags ? 'railway:ref' OR tags ? 'uic_ref')
24 | AND (
25 | railway IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
26 | OR tags->'disused:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
27 | OR tags->'abandoned:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
28 | OR tags->'proposed:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
29 | OR tags->'razed:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
30 | );
31 |
32 | -- Create unique index in order to be able to update the materialized view concurrently
33 | CREATE UNIQUE INDEX IF NOT EXISTS openrailwaymap_ref_osm_id
34 | ON openrailwaymap_ref
35 | USING BTREE(osm_id);
36 |
37 | CREATE INDEX IF NOT EXISTS openrailwaymap_ref_railway_ref_idx
38 | ON openrailwaymap_ref
39 | USING BTREE(railway_ref);
40 |
41 | CREATE INDEX IF NOT EXISTS openrailwaymap_ref_uic_ref_idx
42 | ON openrailwaymap_ref
43 | USING BTREE(uic_ref);
44 |
45 | CREATE MATERIALIZED VIEW IF NOT EXISTS openrailwaymap_facilities_for_search AS
46 | SELECT
47 | osm_id,
48 | to_tsvector('simple', unaccent(openrailwaymap_hyphen_to_space(value))) AS terms,
49 | name,
50 | key AS name_key,
51 | value AS name_value,
52 | tags,
53 | railway,
54 | station,
55 | ref,
56 | route_count,
57 | geom
58 | FROM (
59 | SELECT DISTINCT ON (osm_id, key, value, tags, name, railway, station, ref, route_count, geom)
60 | osm_id,
61 | (each(updated_tags)).key AS key,
62 | (each(updated_tags)).value AS value,
63 | tags,
64 | name,
65 | railway,
66 | station,
67 | ref,
68 | route_count,
69 | geom
70 | FROM (
71 | SELECT
72 | osm_id,
73 | CASE
74 | WHEN name IS NOT NULL THEN tags || hstore('name', name)
75 | ELSE tags
76 | END AS updated_tags,
77 | name,
78 | tags,
79 | railway,
80 | tags->'station' AS station,
81 | tags->'ref' AS ref,
82 | route_count,
83 | way AS geom
84 | FROM stations_with_route_counts
85 | WHERE
86 | railway IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
87 | OR tags->'disused:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
88 | OR tags->'abandoned:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
89 | OR tags->'proposed:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
90 | OR tags->'razed:railway' IN ('station', 'halt', 'tram_stop', 'service_station', 'yard', 'junction', 'spur_junction', 'crossover', 'site', 'tram_stop')
91 | ) AS organised
92 | ) AS duplicated
93 | WHERE
94 | key = 'name'
95 | OR key = 'alt_name'
96 | OR key = 'short_name'
97 | OR key = 'long_name'
98 | OR key = 'official_name'
99 | OR key = 'old_name'
100 | OR key LIKE 'name:%'
101 | OR key LIKE 'alt_name:%'
102 | OR key LIKE 'short_name:%'
103 | OR key LIKE 'long_name:%'
104 | OR key LIKE 'official_name:%'
105 | OR key LIKE 'old_name:%';
106 |
107 | -- Create unique index in order to be able to update the materialized view concurrently
108 | CREATE UNIQUE INDEX IF NOT EXISTS openrailwaymap_facilities_for_search_unique_idx
109 | ON openrailwaymap_facilities_for_search
110 | USING btree(osm_id, name_key);
111 |
112 | CREATE INDEX IF NOT EXISTS openrailwaymap_facilities_name_index ON openrailwaymap_facilities_for_search USING gin(terms);
113 |
114 | CREATE OR REPLACE FUNCTION openrailwaymap_name_rank(tsquery_str tsquery, tsvec_col tsvector, route_count INTEGER, railway TEXT, station TEXT) RETURNS INTEGER AS $$
115 | DECLARE
116 | factor FLOAT;
117 | BEGIN
118 | IF railway = 'tram_stop' OR station IN ('light_rail', 'monorail', 'subway') THEN
119 | factor := 0.5;
120 | ELSIF railway = 'halt' THEN
121 | factor := 0.8;
122 | END IF;
123 | IF tsvec_col @@ tsquery_str THEN
124 | factor := 2.0;
125 | END IF;
126 | RETURN (factor * COALESCE(route_count, 0))::INTEGER;
127 | END;
128 | $$ LANGUAGE plpgsql IMMUTABLE;
129 |
--------------------------------------------------------------------------------
/prepare_milestones.sql:
--------------------------------------------------------------------------------
1 | -- SPDX-License-Identifier: GPL-2.0-or-later
2 | -- Prepare the database for querying milestones
3 |
4 | CREATE OR REPLACE FUNCTION railway_api_valid_float(value TEXT) RETURNS FLOAT AS $$
5 | BEGIN
6 | IF value ~ '^-?[0-9]+(\.[0-9]+)$' THEN
7 | RETURN value::FLOAT;
8 | END IF;
9 | RETURN NULL;
10 | END;
11 | $$ LANGUAGE plpgsql;
12 |
13 | CREATE MATERIALIZED VIEW IF NOT EXISTS openrailwaymap_milestones AS
14 | SELECT DISTINCT ON (osm_id) osm_id, position, precision, railway, name, ref, tags, geom
15 | FROM (
16 | SELECT osm_id, position, precision, railway, name, ref, tags, geom
17 | FROM (
18 | SELECT
19 | osm_id,
20 | railway_api_valid_float(unnest(string_to_array(tags->'railway:position', ';'))) AS position,
21 | 1::SMALLINT AS precision,
22 | railway,
23 | name,
24 | ref,
25 | tags,
26 | way AS geom
27 | FROM planet_osm_point
28 | WHERE
29 | (
30 | railway IS NOT NULL
31 | OR tags?'disused:railway'
32 | OR tags?'abandoned:railway'
33 | OR tags?'construction:railway'
34 | OR tags?'proposed:railway'
35 | OR tags?'razed:railway'
36 | ) AND tags?'railway:position'
37 | UNION ALL
38 | SELECT
39 | osm_id,
40 | railway_api_valid_float(unnest(string_to_array(tags->'railway:position:exact', ';'))) AS position,
41 | 3::SMALLINT AS precision,
42 | railway,
43 | name,
44 | ref,
45 | tags,
46 | way AS geom
47 | FROM planet_osm_point
48 | WHERE
49 | (
50 | railway IS NOT NULL
51 | OR tags?'disused:railway'
52 | OR tags?'abandoned:railway'
53 | OR tags?'construction:railway'
54 | OR tags?'proposed:railway'
55 | OR tags?'razed:railway'
56 | ) AND tags?'railway:position:exact'
57 | ) AS features_with_position
58 | WHERE position IS NOT NULL
59 | ORDER BY osm_id ASC, precision DESC
60 | ) AS duplicates_merged;
61 |
62 | -- Create unique index in order to be able to refresh the materialized view concurrently.
63 | CREATE UNIQUE INDEX IF NOT EXISTS openrailwaymap_milestones_unique_idx
64 | ON openrailwaymap_milestones
65 | USING btree(osm_id, precision);
66 |
67 | CREATE INDEX IF NOT EXISTS openrailwaymap_milestones_geom_idx
68 | ON openrailwaymap_milestones
69 | USING gist(geom);
70 |
71 | CREATE INDEX IF NOT EXISTS openrailwaymap_milestones_position_idx
72 | ON openrailwaymap_milestones
73 | USING gist(geom);
74 |
75 | CREATE OR REPLACE VIEW openrailwaymap_tracks_with_ref AS
76 | SELECT
77 | osm_id,
78 | railway,
79 | name,
80 | ref,
81 | tags,
82 | way AS geom
83 | FROM planet_osm_line
84 | WHERE
85 | railway IN ('rail', 'narrow_gauge', 'subway', 'light_rail', 'tram', 'construction', 'proposed', 'disused', 'abandoned', 'razed')
86 | AND (NOT (tags?'service') OR tags->'usage' IN ('industrial', 'military', 'test'))
87 | AND ref IS NOT NULL
88 | AND osm_id > 0;
89 |
90 | CREATE INDEX IF NOT EXISTS planet_osm_line_ref_geom_idx
91 | ON planet_osm_line
92 | USING gist(way)
93 | WHERE
94 | railway IN ('rail', 'narrow_gauge', 'subway', 'light_rail', 'tram', 'construction', 'proposed', 'disused', 'abandoned', 'razed')
95 | AND (NOT tags?'service' OR tags->'usage' IN ('industrial', 'military', 'test'))
96 | AND ref IS NOT NULL
97 | AND osm_id > 0;
98 |
99 | CREATE INDEX IF NOT EXISTS planet_osm_line_ref_idx
100 | ON planet_osm_line
101 | USING btree(ref)
102 | WHERE
103 | railway IN ('rail', 'narrow_gauge', 'subway', 'light_rail', 'tram', 'construction', 'proposed', 'disused', 'abandoned', 'razed')
104 | AND (NOT tags?'service' OR tags->'usage' IN ('industrial', 'military', 'test'))
105 | AND ref IS NOT NULL
106 | AND osm_id > 0;
107 |
--------------------------------------------------------------------------------
/tests/testcases.yml:
--------------------------------------------------------------------------------
1 | - name: Berlin
2 | request:
3 | path: "/facility"
4 | params:
5 | name: "Berlin"
6 | response:
7 | entries:
8 | - name: "Hauptbahnhof"
9 | - name: "Yorckstraße"
10 | - name: "Berlin-Spandau"
11 | - name: "Berlin Südkreuz"
12 | - name: "Ostbahnhof"
13 | - name: "Berlin Ostbahnhof"
14 | - name: "Friedrichstraße"
15 | - name: "Berlin Gesundbrunnen"
16 | - name: "Berlin Hauptbahnhof"
17 | - name: "Hirschgarten"
18 | - name: "Hermannstraße"
19 | - name: "Westkreuz"
20 | - name: "Warschauer Straße"
21 | - name: "Nordbahnhof"
22 | - name: "Ostkreuz"
23 | - name: "Bornholmer Straße"
24 | - name: "Berlin Potsdamer Platz"
25 | - name: "Baumschulenweg"
26 | - name: "Priesterweg"
27 | - name: "Gesundbrunnen"
28 | - name: result limit 5
29 | request:
30 | path: "/facility"
31 | params:
32 | name: "Berlin"
33 | limit: 5
34 | response:
35 | count: 5
36 | - name: result limit 25
37 | request:
38 | path: "/facility"
39 | params:
40 | name: "Berlin"
41 | limit: 25
42 | response:
43 | count: 25
44 | - name: "hyphen"
45 | request:
46 | path: "/facility"
47 | params:
48 | name: "Karlsruhe-Hagsfeld"
49 | response:
50 | match: regexp_full
51 | count: 1
52 | entries:
53 | - name: "Karlsruhe[- ]Hagsfeld"
54 | - name: "space"
55 | request:
56 | path: "/facility"
57 | params:
58 | name: "Karlsruhe Hagsfeld"
59 | response:
60 | match: regexp_full
61 | count: 1
62 | entries:
63 | - name: "Karlsruhe[- ]Hagsfeld"
64 | - name: Karlsruhe
65 | request:
66 | path: "/facility"
67 | params:
68 | name: Karlsruhe
69 | response:
70 | match: regexp_full
71 | entries:
72 | - name: "Karlsruhe (Hauptbahnhof|Hbf)"
73 | - name: "Karlsruhe-Durlach"
74 | - name: "Karlsruhe-Durlach"
75 | - name: "Malsch( \\(K(reis)? Karslruhe\\))?"
76 | - name: "Söllingen \\(b(ei)? Karlsruhe\\)"
77 | - name: "Söllingen \\(b(ei)? Karlsruhe\\)"
78 | - name: "Kunstakademie / Hochschule Karlsruhe"
79 | - name: "Karlsruhe[- ]West"
80 | - name: "Karlsruhe[- ]Knielingen"
81 | - name: "Karlsruhe[- ]Mühlburg"
82 | - name: "Karlsruhe[- ]Hafen"
83 | - name: "Karlsruhe[- ]Brunnenstück"
84 | - name: "Forchheim \\(b(ei)? Karlsruhe\\)"
85 | - name: "Söllingen \\(b(ei)? Karlsruhe\\) Abzw"
86 | - name: "Karlsruhe Gbf"
87 | - name: "Karlsruhe[- ]Rheinbrücke"
88 | - name: "Karlsruhe[- ]Dammerstock"
89 | - name: "Karlsruhe[- ]Hagsfeld"
90 | - name: "'Württ' should not return results"
91 | request:
92 | path: "/facility"
93 | params:
94 | name: Württ
95 | limit: 1
96 | response:
97 | count: 1
98 | - name: "'Württemberg' should not return results"
99 | request:
100 | path: "/facility"
101 | params:
102 | name: Württemberg
103 | limit: 1
104 | response:
105 | count: 1
106 | - name: "'Walheim' should return one result"
107 | request:
108 | path: "/facility"
109 | params:
110 | name: Walheim
111 | response:
112 | match: str_equals
113 | entries:
114 | - name: "Walheim (Württemberg)"
115 | - name: "2160 km 9.4"
116 | request:
117 | path: "/milestone"
118 | params:
119 | ref: 2160
120 | position: 9.4
121 | limit: 1
122 | response:
123 | match: str_equals
124 | entries:
125 | - route_ref: "2160"
126 | position: 9.4
127 |
--------------------------------------------------------------------------------
/tests/tests.py:
--------------------------------------------------------------------------------
1 | import argparse
2 | import re
3 | import requests
4 | import sys
5 | from termcolor import colored
6 | import traceback
7 | import yaml
8 |
9 |
10 | class TestCase():
11 |
12 | def __init__(self, **kwargs):
13 | self.name = kwargs["name"]
14 | self.request = kwargs["request"]
15 | self.response = kwargs["response"]
16 |
17 | def run(self, api):
18 | url = "{}{}".format(api, self.request["path"])
19 | r = requests.get(url, params=self.request.get("params"))
20 | self.test_equals("status code", r.status_code, self.response.get("status", 200))
21 | response_data = r.json()
22 | # Test result count
23 | expected_count = self.response.get("count")
24 | if expected_count is not None:
25 | self.test_equals("result count", len(response_data), expected_count)
26 | # Test result names
27 | expected_results = self.response.get("entries")
28 | if expected_results is not None:
29 | self.test_equals("result_count", len(expected_results), len(response_data))
30 | match_type = self.response.get("match", "str_equals")
31 | for i in range(0, len(expected_results)):
32 | expected = expected_results[i]
33 | got = response_data[i]
34 | if type(expected) is not dict:
35 | self.fail("Expected result must be a dict, not {}: {}".format(type(expected), expected))
36 | for key, expected_value in expected.items():
37 | if match_type == "str_equals":
38 | self.test_str_equals("result['{}']['{}']".format(i + 1, key), expected_value, response_data[i][key])
39 | elif match_type == "regexp_full":
40 | self.test_regexp_full("result['{}']['{}']".format(i + 1, key), expected_value, response_data[i][key])
41 | else:
42 | self.fail("Unsupported comparison {}".format(match_type))
43 | self.passed()
44 |
45 | def test_is_type(self, obj, expected_type):
46 | if type(obj) is not expected_type:
47 | self.fail(" {} but {} was expected.".format(status))
48 |
49 | def test_regexp_full(self, what, regexp, got):
50 | """Compare provided string with a regular expression. The expression must match the full string.
51 | """
52 | if not re.fullmatch(regexp, got):
53 | print("pattern: {} string: {}".format(regexp, got))
54 | self.fail("{}: {} does not match regular expression '{}'".format(what, got, regexp))
55 |
56 | def test_equals(self, what, expected, got):
57 | if got != expected:
58 | self.fail("{}: {} but {} was expected.".format(what, got, expected))
59 |
60 | def test_str_equals(self, what, expected, got):
61 | if str(got) != str(expected):
62 | self.fail("{}: {} but {} was expected.".format(what, got, expected))
63 |
64 | def print_traceback(self, color):
65 | for line in traceback.format_stack():
66 | print(colored(line.strip(), color))
67 |
68 | def fail(self, message):
69 | text = "ERROR: Test '{}' failed.\n{}".format(self.name, message)
70 | print(colored(text, 'red'))
71 | self.print_traceback('red')
72 | sys.exit(1)
73 |
74 | def passed(self):
75 | text = "PASSED: {}".format(self.name)
76 | print(colored(text, 'green'))
77 |
78 |
79 | parser = argparse.ArgumentParser(description="Run test queries against OpenRailwayMap API and compare results.")
80 | parser.add_argument("-a", "--api", type=str, help="API endpoint", default="http://127.0.0.1:5000")
81 | parser.add_argument("-t", "--tests", type=argparse.FileType("r"), help="Test definitions (YAML)")
82 | args = parser.parse_args()
83 |
84 | cases = yaml.safe_load(args.tests)
85 | cases = [TestCase(**e) for e in cases]
86 | for case in cases:
87 | case.run(args.api)
88 |
--------------------------------------------------------------------------------
/update_facilities.sql:
--------------------------------------------------------------------------------
1 | -- SPDX-License-Identifier: GPL-2.0-or-later
2 | -- Flush data updates to the materialized views.
3 |
4 | REFRESH MATERIALIZED VIEW CONCURRENTLY openrailwaymap_ref;
5 | REFRESH MATERIALIZED VIEW CONCURRENTLY openrailwaymap_facilities_for_search;
6 |
--------------------------------------------------------------------------------
/update_milestones.sql:
--------------------------------------------------------------------------------
1 | -- SPDX-License-Identifier: GPL-2.0-or-later
2 | -- Flush data updates to the materialized view.
3 |
4 | REFRESH MATERIALIZED VIEW CONCURRENTLY openrailwaymap_milestones;
5 |
--------------------------------------------------------------------------------