osrm-backend/http.md at v5.2.0-rc.1

Mathias Gug 1635f7351d Support environment variable to disable http requests logging.

2016-05-20 12:47:47 -07:00

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Environent Variables

SIGNAL_PARENT_WHEN_READY

If the SIGNAL_PARENT_WHEN_READY environment variable is set osrm-routed will send the USR1 signal to its parent when it will be running and waiting for requests. This could be used to upgrade osrm-routed to a new binary on the fly without any service downtime - no incoming requests will be lost.

DISABLE_ACCESS_LOGGING

If the DISABLE_ACCESS_LOGGING environment variable is set osrm-routed will not log any http requests to standard output. This can be useful in high traffic setup.

HTTP API

osrm-routed supports only GET requests of the form. If you your response size exceeds the limits of a simple URL encoding, consider using our NodeJS bindings or using the C++ library directly.

Request

http://{server}/{service}/{version}/{profile}/{coordinates}[.{format}]?option=value&option=value

server: location of the server. Example: 127.0.0.1:5000 (default)

service: Name of the service to be used. Support are the following services:

Service	Description
`route`	shortest path between given coordinates
`nearest`	returns the nearest street segment for a given coordinate
`table`	computes distance tables for given coordinates
`match`	matches given coordinates to the road network
`trip`	Compute the shortest round trip between given coordinates
`tile`	Return vector tiles containing debugging info

version: Version of the protocol implemented by the service.
profile: Mode of transportation, is determined by the profile that is used to prepare the data
coordinates: String of format {longitude},{latitude};{longitude},{latitude}[;{longitude},{latitude} ...] or polyline({polyline}).
format: Only json is supportest at the moment. This parameter is optional and defaults to json.

Passing any option=value is optional. polyline follows Google's polyline format with precision 5 and can be generated using this package. To pass parameters to each location some options support an array like encoding:

{option}={element};{element}[;{element} ... ]

The number of elements must match exactly the number of locations. If you don't want to pass a value but instead use the default you can pass an empty element.

Example: 2nd location use the default value for option:

{option}={element};;{element}

General options

Option	Values	Description
bearings	`{bearing};{bearing}[;{bearing} ...]`	Limits the search to segments with given bearing in degrees towards true north in clockwise direction.
radiuses	`{radius};{radius}[;{radius} ...]`	Limits the search to given radius in meters.
hints	`{hint};{hint}[;{hint} ...]`	Hint to derive position in street network.

Where the elements follow the following format:

Element	Values
bearing	`{value},{range}` `integer 0 .. 360,integer 0 .. 180`
radius	`double >= 0` or `unlimited` (default)
hint	Base64 `string`

Examples

Query on Berlin with three coordinates:

http://router.project-osrm.org/route/v1/driving/13.388860,52.517037;13.397634,52.529407;13.428555,52.523219?overview=false

Using polyline:

http://router.project-osrm.org/route/v1/driving/polyline(ofp_Ik_vpAilAyu@te@g`E)?overview=false

Response

Every response object has a code field.

{
"code": {code},
"message": {message}
}

Where code is on one of the strings below or service dependent:

Type	Description
`Ok`	Request could be processed as expected.
`InvalidUrl`	URL string is invalid.
`InvalidService`	Service name is invalid.
`InvalidVersion`	Version is not found.
`InvalidOptions`	Options are invalid.
`NoSegment`	One of the supplied input coordinates could not snap to street segment.
`TooBig`	The request size violates one of the service specific request size restrictions.

message is a optional human-readable error message. All other status types are service dependent.

In case of an error the HTTP status code will be 400. Otherwise the HTTP status code will be 200 and code will be Ok.

Service `nearest`

Snaps a coordinate to the street network and returns the nearest n matches.

Request

http://{server}/nearest/v1/{profile}/{coordinates}.json?number={number}

Where coordinates only supports a single {longitude},{latitude} entry.

In addition to the general options the following options are supported for this service:

Option	Values	Description
number	`integer >= 1` (default `1`)	Number of nearest segments that should be returned.

Response

code if the request was successful Ok otherwise see the service dependent and general status codes.
waypoints array of Waypoint objects sorted by distance to the input coordinate. Each object has at least the following additional properties:
- distance: Distance in meters to the supplied input coordinate.

Examples

Querying nearest three snapped locations of 13.388860,52.517037 with a bearing between 20° - 340°.

http://router.project-osrm.org/nearest/v1/driving/13.388860,52.517037?number=3&bearings=0,20

Service `route`

Request

http://{server}/route/v1/{profile}/{coordinates}?alternatives={true|false}&steps={true|false}&geometries={polyline|geojson}&overview={full|simplified|false}

In addition to the general options the following options are supported for this service:

Option	Values	Description
alternatives	`true`, `false` (default)	Search for alternative routes and return as well.*
steps	`true`, `false` (default)	Return route steps for each route leg
annotate	`true`, `false` (default)	Returns additional metadata for each coordinate along the route geometry.
geometries	`polyline` (default), `geojson`	Returned route geometry format (influences overview and per step)
overview	`simplified` (default), `full`, `false`	Add overview geometry either full, simplified according to highest zoom level it could be display on, or not at all.
continue_straight	`default` (default), `true`, `false`	Forces the route to keep going straight at waypoints and don't do a uturn even if it would be faster. Default value depends on the profile.

* Please note that even if an alternative route is requested, a result cannot be guaranteed.

Response

code if the request was successful Ok otherwise see the service dependent and general status codes.
waypoints: Array of Waypoint objects representing all waypoints in order:
routes: An array of Route objects, ordered by descending recommendation rank.

In case of error the following codes are supported in addition to the general ones:

Type	Description
`NoRoute`	No route found.

All other fields might be undefined.

Service `table`

Request

http://{server}/table/v1/{profile}/{coordinates}?{sources}=[{elem}...];&destinations=[{elem}...]`

This computes duration tables for the given locations. Allows for both symmetric and asymmetric tables.

Coordinates

In addition to the general options the following options are supported for this service:

Option	Values	Description
sources	`{index};{index}[;{index} ...]` or `all` (default)	Use location with given index as source.
destinations	`{index};{index}[;{index} ...]` or `all` (default)	Use location with given index as destination.

Unlike other array encoded options, the length of sources and destinations can be smaller or equal to number of input locations;

Example:

sources=0;5;7&destinations=5;1;4;2;3;6

Element	Values
index	`0 <= integer < #locations`

Response

code if the request was successful Ok otherwise see the service dependent and general status codes.
durations array of arrays that stores the matrix in row-major order. durations[i][j] gives the travel time from the i-th waypoint to the j-th waypoint. Values are given in seconds.
sources array of Waypoint objects describing all sources in order
destinations array of Waypoint objects describing all destinations in order

In case of error the following codes are supported in addition to the general ones:

Type	Description
`NoTable`	No route found.

All other fields might be undefined.

Examples

Returns a 3x3 matrix:

http://router.project-osrm.org/table/v1/driving/13.388860,52.517037;13.397634,52.529407;13.428555,52.523219

Returns a 1x3 matrix:

http://router.project-osrm.org/table/v1/driving/13.388860,52.517037;13.397634,52.529407;13.428555,52.523219?sources=0

Returns a asymmetric 3x2 matrix with from the polyline encoded locations qikdcB}~dpXkkHz:

http://router.project-osrm.org/table/v1/driving/qikdcB}~dpXkkHz?sources=0;1;3&destinations=2;4

Service `match`

Map matching matches given GPS points to the road network in the most plausible way. Please note the request might result multiple sub-traces. Large jumps in the timestamps (>60s) or improbable transitions lead to trace splits if a complete matching could not be found. The algorithm might not be able to match all points. Outliers are removed if they can not be matched successfully.

Request

http://{server}/match/v1/{profile}/{coordinates}?steps={true|false}&geometries={polyline|geojson}&overview={simplified|full|false}

In addition to the general options the following options are supported for this service:

Option	Values	Description
steps	`true`, `false` (default)	Return route steps for each route
geometries	`polyline` (default), `geojson`	Returned route geometry format (influences overview and per step)
annotate	`true`, `false` (default)	Returns additional metadata for each coordinate along the route geometry.
overview	`simplified` (default), `full`, `false`	Add overview geometry either full, simplified according to highest zoom level it could be display on, or not at all.
timestamps	`{timestamp};{timestamp}[;{timestamp} ...]`	Timestamp of the input location.
radiuses	`{radius};{radius}[;{radius} ...]`	Standard deviation of GPS precision used for map matching. If applicable use GPS accuracy.

Parameter	Values
timestamp	`integer` UNIX-like timestamp
radius	`double >= 0` (default 5m)

Response

code if the request was successful Ok otherwise see the service dependent and general status codes.
tracepoints: Array of Ẁaypoint objects representing all points of the trace in order. If the trace point was ommited by map matching because it is an outlier, the entry will be null. Each Waypoint object has the following additional properties:
- matchings_index: Index to the Route object in matchings the sub-trace was matched to.
- waypoint_index: Index of the waypoint inside the matched route.
matchings: An array of Route objects that assemble the trace. Each Route object has the following additional properties:
- confidence: Confidence of the matching. float value between 0 and 1. 1 is very confident that the matching is correct.

In case of error the following codes are supported in addition to the general ones:

Type	Description
`NoMatch`	No matchings found.

All other fields might be undefined.

Service `trip`

The trip plugin solves the Traveling Salesman Problem using a greedy heuristic (farthest-insertion algorithm). The returned path does not have to be the shortest path, as TSP is NP-hard it is only an approximation. Note that if the input coordinates can not be joined by a single trip (e.g. the coordinates are on several disconnected islands) multiple trips for each connected component are returned.

Request

http://{server}/trip/v1/{profile}/{coordinates}?steps={true|false}&geometries={polyline|geojson}&overview={simplified|full|false}

In addition to the general options the following options are supported for this service:

Option	Values	Description
steps	`true`, `false` (default)	Return route instructions for each trip
annotate	`true`, `false` (default)	Returns additional metadata for each coordinate along the route geometry.
geometries	`polyline` (default), `geojson`	Returned route geometry format (influences overview and per step)
overview	`simplified` (default), `full`, `false`	Add overview geometry either full, simplified according to highest zoom level it could be display on, or not at all.

Response

code if the request was successful Ok otherwise see the service dependent and general status codes.
waypoints: Array of Waypoint objects representing all waypoints in input order. Each Waypoint object has the following additional properties:
- trips_index: Index to trips of the sub-trip the point was matched to.
- waypoint_index: Index of the point in the trip.
trips: An array of Route objects that assemble the trace.

In case of error the following codes are supported in addition to the general ones:

Type	Description
`NoTrips`	No trips found.

All other fields might be undefined.

Result objects

Route

Represents a route through (potentially multiple) waypoints.

Properties

distance: The distance traveled by the route, in float meters.
duration: The estimated travel time, in float number of seconds.

geometry: The whole geometry of the route value depending on overview parameter, format depending on the geometries parameter. See RouteStep's geometry field for a parameter documentation.

overview	Description
simplified	Geometry is simplified according to the highest zoom level it can still be displayed on full.
full	Geometry is not simplified.
false	Geometry is not added.

legs: The legs between the given waypoints, an array of RouteLeg objects.

Example

Three input coordinates, geometry=geojson, steps=false:

{
  "distance": 90.0,
  "duration": 300.0,
  "geometry": {"type": "LineString", "coordinates": [[120., 10.], [120.1, 10.], [120.2, 10.], [120.3, 10.]]},
  "legs": [
    {
      "distance": 30.0,
      "duration": 100.0,
      "steps": []
    },
    {
      "distance": 60.0,
      "duration": 200.0,
      "steps": []
    }
  ]
}

RouteLeg

Represents a route between two waypoints.

Properties

distance: The distance traveled by this route leg, in float meters.
duration: The estimated travel time, in float number of seconds.
summary: Summary of the route taken as string. Depends on the steps parameter:

steps

true Names of the two major roads used. Can be empty if route is too short.

false empty string
steps: Depends on the steps parameter.

steps

true array of RouteStep objects describing the turn-by-turn instructions

false empty array
annotation: Additional details about each coordinate along the route geometry:

annotate

true returns distance and durations of each coordinate along the route

false will not exist

steps
true	Names of the two major roads used. Can be empty if route is too short.
false	empty `string`

steps
true	array of `RouteStep` objects describing the turn-by-turn instructions
false	empty array

annotate
true	returns distance and durations of each coordinate along the route
false	will not exist

Example

With steps=false and annotate=true:

{
  "distance": 30.0,
  "duration": 100.0,
  "steps": []
  "annotation": {
    "distance": [5,5,10,5,5],
    "duration": [15,15,40,15,15]
  }
}

RouteStep

A step consists of a maneuver such as a turn or merge, followed by a distance of travel along a single way to the subsequent step.

Properties

distance: The distance of travel from the maneuver to the subsequent step, in float meters.
duration: The estimated travel time, in float number of seconds.
geometry: The unsimplified geometry of the route segment, depending on the geometries parameter.

geometries

polyline polyline with precision 5 in [latitude,longitude] encoding

geojson GeoJSON LineString or GeoJSON Point if it is only one coordinate (not wrapped by a GeoJSON feature)
name: The name of the way along which travel proceeds.
mode: A string signifying the mode of transportation.
maneuver: A StepManeuver object representing the maneuver.
intersections: A list of Intersections that are passed along the segment, the very first belonging to the StepManeuver

geometries
polyline	polyline with precision 5 in [latitude,longitude] encoding
geojson	GeoJSON `LineString` or GeoJSON `Point` if it is only one coordinate (not wrapped by a GeoJSON feature)

Example

{
 "distance":152.3,
 "duration":15.6,
 "name":"Lortzingstraße",
 "maneuver":{
     "type":"depart",
     "modifier":"left"
 },
 "geometry":"{lu_IypwpAVrAvAdI",
 "mode":"driving",
 "intersections":[
    {"location":[13.39677,52.54366],
    "out":1,
    "bearings":[66,246],
    "entry":["true","true"]},
    {"location":[13.394718,52.543096],
    "in":0,
    "out":2,
    "bearings":[60,150,240,330],
    "entry":["false","true","true","true"]
    }
]}

StepManeuver

Properties

location: A [longitude, latitude] pair describing the location of the turn.
bearing_before: The clockwise angle from true north to the direction of travel immediately before the maneuver.
bearing_after: The clockwise angle from true north to the direction of travel immediately after the maneuver.

type A string indicating the type of maneuver. new identifiers might be introduced without API change Types unknown to the client should be handled like the turn type, the existance of correct modifier values is guranteed.

`type`	Description
turn	a basic turn into direction of the `modifier`
new name	no turn is taken, but the road name changes. The Road can take a turn itself, following `modifier`
depart	indicates the departure of the leg
arrive	indicates the destination of the leg
merge	merge onto a street (e.g. getting on the highway from a ramp, the `modifier specifies the direction of the merge`)
ramp	Deprecated. Replaced by `on_ramp` and `off_ramp`.
on ramp	take a ramp to enter a highway (direction given my `modifier`)
off ramp	take a ramp to exit a highway (direction given my `modifier`)
fork	take the left/right side at a fork depending on `modifier`
end of road	road ends in a T intersection turn in direction of `modifier`
continue	Turn in direction of `modifier` to stay on the same road
roundabout	traverse roundabout, has additional field `exit` with NR if the roundabout is left. `the modifier specifies the direction of entering the roundabout`
rotary	a larger version of a roundabout, can offer `rotary_name` in addition to the `exit` parameter.
roundabout turn	Describes a turn at a small roundabout that should be treated as normal turn. The `modifier` indicates the turn direciton. Example instruction: `At the roundabout turn left`.
notification	not an actual turn but a change in the driving conditions. For example the travel mode. If the road takes a turn itself, the `modifier` describes the direction

Please note that even though there are new name and notification instructions, the mode and name can change between all instructions. They only offer a fallback in case nothing else is to report.

modifier An optional string indicating the direction change of the maneuver.

`modifier`	Description
uturn	indicates reversal of direction
sharp right	a sharp right turn
right	a normal turn to the right
slight right	a slight turn to the right
straight	no relevant change in direction
slight left	a slight turn to the left
left	a normal turn to the left
sharp left	a sharp turn to the left

The list of turns without a modifier is limited to: depart/arrive. If the source/target location is close enough to the depart/arrive location, no modifier will be given.

The meaning depends on the type field.

`type`	Description
`turn`	`modifier` indicates the change in direction accomplished through the turn
`depart`/`arrive`	`modifier` indicates the position of departure point and arrival point in relation to the current direction of travel

exit An optional integer indicating number of the exit to take. The field exists for the following type field:

`type`	Description
`roundabout`	Number of the roundabout exit to take. If exit is `undefined` the destination is on the roundabout.
else	Indicates the number of intersections passed until the turn. Example instruction: `at the fourth intersection, turn left`

New properties (potentially depending on type) may be introduced in the future without an API version change.

Intersections

An intersection gives a full representation of any cross-way the path passes bay. For every step, the very first intersection (intersections[0]) corresponds to the location of the StepManeuver. Further intersections are listed for every cross-way until the next turn instruction.

Properties

location: A [longitude, latitude] pair describing the location of the turn.
bearings: A list of bearing values (e.g. [0,90,180,270]) that are available at the intersection. The bearings describe all available roads at the intersection.
entry: A list of entry flags, corresponding in a 1:1 relationship to the bearings. A value of true indicates that the respective road could be entered on a valid route. false indicates that the turn onto the respective road would violate a restriction.
in: index into bearings/entry array. Used to calculate the bearing just before the turn. Namely, the clockwise angle from true north to the direction of travel immediately before the maneuver/passing the intersection. Bearings are given relative to the intersection. To get the bearing in the direction of driving, the bearing has to be rotated by a value of 180. The value is not supplied for depart maneuvers.
out: index into the bearings/entry array. Used to extract the bearing just after the turn. Namely, The clockwise angle from true north to the direction of travel immediately after the maneuver/passing the intersection. The value is not supplied for arrive maneuvers.

Example

{
    "location":[13.394718,52.543096],
    "in":0,
    "out":2,
    "bearings":[60,150,240,330],
    "entry":["false","true","true","true"]
}

Waypoint

Object used to describe waypoint on a route.

Properties

name Name of the street the coordinate snapped to
location Array that contains the [longitude, latitude] pair of the snapped coordinate
hint Unique internal identifier of the segment (ephemeral, not constant over data updates) This can be used on subsequent request to significantly speed up the query and to connect multiple services. E.g. you can use the hint value obtained by the nearest query as hint values for route inputs.

Service `tile`

This generates Mapbox Vector Tiles that can be viewed with a vector-tile capable slippy-map viewer. The tiles contain road geometries and metadata that can be used to examine the routing graph. The tiles are generated directly from the data in-memory, so are in sync with actual routing results, and let you examine which roads are actually routable, and what weights they have applied.

Request

http://{server}/tile/v1/{profile}/tile({x},{y},{zoom}).mvt

The x, y, and zoom values are the same as described at https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames, and are supported by vector tile viewers like Mapbox GL JS.

Response

The response object is either a binary encoded blob with a Content-Type of application/x-protobuf, or a 404 error. Note that OSRM is hard-coded to only return tiles from zoom level 12 and higher (to avoid accidentally returning extremely large vector tiles).

Vector tiles contain just a single layer named speeds. Within that layer, features can have speed (int) and is_small (boolean) attributes.

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Environent Variables

SIGNAL_PARENT_WHEN_READY

DISABLE_ACCESS_LOGGING

HTTP API

Request

General options

Examples

Response

Service nearest

Request

Response

Examples

Service route

Request

Response

Service table

Request

Coordinates

Response

Examples

Service match

Request

Response

Service trip

Request

Response

Result objects

Route

Properties

Example

RouteLeg

Properties

Example

RouteStep

Properties

Example

StepManeuver

Properties

Intersections

Properties

Example

Waypoint

Properties

Service tile

Request

Response

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Service `nearest`

Service `route`

Service `table`

Service `match`

Service `trip`

Service `tile`