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node_osrm_support.hpp
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#ifndef OSRM_BINDINGS_NODE_SUPPORT_HPP
#define OSRM_BINDINGS_NODE_SUPPORT_HPP
#include "nodejs/json_v8_renderer.hpp"
#include "engine/api/flatbuffers/fbresult_generated.h"
#include "osrm/approach.hpp"
#include "osrm/bearing.hpp"
#include "osrm/coordinate.hpp"
#include "osrm/engine_config.hpp"
#include "osrm/json_container.hpp"
#include "osrm/match_parameters.hpp"
#include "osrm/nearest_parameters.hpp"
#include "osrm/osrm.hpp"
#include "osrm/route_parameters.hpp"
#include "osrm/status.hpp"
#include "osrm/storage_config.hpp"
#include "osrm/table_parameters.hpp"
#include "osrm/tile_parameters.hpp"
#include "osrm/trip_parameters.hpp"
#include "util/json_renderer.hpp"
#include <napi.h>
#include <boost/assert.hpp>
#include <boost/optional.hpp>
#include <algorithm>
#include <iostream>
#include <iterator>
#include <sstream>
#include <stdexcept>
#include <string>
#include <vector>
#include <exception>
#include <memory>
#include <utility>
namespace node_osrm
{
using engine_config_ptr = std::unique_ptr<osrm::EngineConfig>;
using route_parameters_ptr = std::unique_ptr<osrm::RouteParameters>;
using trip_parameters_ptr = std::unique_ptr<osrm::TripParameters>;
using tile_parameters_ptr = std::unique_ptr<osrm::TileParameters>;
using match_parameters_ptr = std::unique_ptr<osrm::MatchParameters>;
using nearest_parameters_ptr = std::unique_ptr<osrm::NearestParameters>;
using table_parameters_ptr = std::unique_ptr<osrm::TableParameters>;
struct PluginParameters
{
bool renderToBuffer = false;
};
using ObjectOrString = typename mapbox::util::variant<osrm::json::Object, std::string>;
template <typename ResultT> inline Napi::Value render(const Napi::Env &env, const ResultT &result);
template <> Napi::Value inline render(const Napi::Env &env, const std::string &result)
{
return Napi::Buffer<char>::Copy(env, result.data(), result.size());
}
template <> Napi::Value inline render(const Napi::Env &env, const ObjectOrString &result)
{
if (result.is<osrm::json::Object>())
{
// Convert osrm::json object tree into matching v8 object tree
Napi::Value value;
renderToV8(env, value, result.get<osrm::json::Object>());
return value;
}
else
{
// Return the string object as a node Buffer
return Napi::Buffer<char>::Copy(
env, result.get<std::string>().data(), result.get<std::string>().size());
}
}
inline bool IsUnsignedInteger(const Napi::Value &value)
{
if (!value.IsNumber())
{
return false;
}
const auto doubleValue = value.ToNumber().DoubleValue();
return doubleValue >= 0.0 && std::floor(doubleValue) == doubleValue;
}
inline void ParseResult(const osrm::Status &result_status, osrm::json::Object &result)
{
const auto code_iter = result.values.find("code");
const auto end_iter = result.values.end();
BOOST_ASSERT(code_iter != end_iter);
if (result_status == osrm::Status::Error)
{
throw std::logic_error(code_iter->second.get<osrm::json::String>().value.c_str());
}
const auto message_iter = result.values.find("message");
if (message_iter != end_iter)
{
result.values.erase(message_iter);
}
}
inline void ParseResult(const osrm::Status & /*result_status*/, const std::string & /*unused*/) {}
inline void ParseResult(const osrm::Status &result_status,
const flatbuffers::FlatBufferBuilder &fbs_builder)
{
auto fbs_result = osrm::engine::api::fbresult::GetFBResult(fbs_builder.GetBufferPointer());
if (result_status == osrm::Status::Error)
{
BOOST_ASSERT(fbs_result->code());
throw std::logic_error(fbs_result->code()->message()->c_str());
}
}
inline void ThrowError(const Napi::Env &env, const char *message)
{
Napi::Error::New(env, message).ThrowAsJavaScriptException();
}
inline void ThrowTypeError(const Napi::Env &env, const char *message)
{
Napi::TypeError::New(env, message).ThrowAsJavaScriptException();
}
inline engine_config_ptr argumentsToEngineConfig(const Napi::CallbackInfo &args)
{
Napi::HandleScope scope(args.Env());
auto engine_config = std::make_unique<osrm::EngineConfig>();
if (args.Length() == 0)
{
return engine_config;
}
else if (args.Length() > 1)
{
ThrowError(args.Env(), "Only accepts one parameter");
return engine_config_ptr();
}
BOOST_ASSERT(args.Length() == 1);
if (args[0].IsString())
{
engine_config->storage_config = osrm::StorageConfig(args[0].ToString().Utf8Value());
engine_config->use_shared_memory = false;
return engine_config;
}
else if (!args[0].IsObject())
{
ThrowError(args.Env(), "Parameter must be a path or options object");
return engine_config_ptr();
}
BOOST_ASSERT(args[0].IsObject());
auto params = args[0].As<Napi::Object>();
auto path = params.Get("path");
if (path.IsEmpty())
return engine_config_ptr();
auto memory_file = params.Get("memory_file");
if (memory_file.IsEmpty())
return engine_config_ptr();
auto shared_memory = params.Get("shared_memory");
if (shared_memory.IsEmpty())
return engine_config_ptr();
auto mmap_memory = params.Get("mmap_memory");
if (mmap_memory.IsEmpty())
return engine_config_ptr();
if (!memory_file.IsUndefined())
{
if (path.IsUndefined())
{
ThrowError(args.Env(), "memory_file option requires a path to a file.");
return engine_config_ptr();
}
engine_config->memory_file = memory_file.ToString().Utf8Value();
}
auto dataset_name = params.Get("dataset_name");
if (dataset_name.IsEmpty())
return engine_config_ptr();
if (!dataset_name.IsUndefined())
{
if (dataset_name.IsString())
{
engine_config->dataset_name = dataset_name.ToString().Utf8Value();
}
else
{
ThrowError(args.Env(), "dataset_name needs to be a string");
return engine_config_ptr();
}
}
auto disable_feature_dataset = params.Get("disable_feature_dataset");
if (disable_feature_dataset.IsArray())
{
Napi::Array datasets = disable_feature_dataset.As<Napi::Array>();
for (uint32_t i = 0; i < datasets.Length(); ++i)
{
Napi::Value dataset = datasets.Get(i);
if (!dataset.IsString())
{
ThrowError(args.Env(), "disable_feature_dataset list option must be a string");
return engine_config_ptr();
}
auto dataset_str = dataset.ToString().Utf8Value();
if (dataset_str == "ROUTE_GEOMETRY")
{
engine_config->disable_feature_dataset.push_back(
osrm::storage::FeatureDataset::ROUTE_GEOMETRY);
}
else if (dataset_str == "ROUTE_STEPS")
{
engine_config->disable_feature_dataset.push_back(
osrm::storage::FeatureDataset::ROUTE_STEPS);
}
else
{
ThrowError(
args.Env(),
"disable_feature_dataset array can include 'ROUTE_GEOMETRY', 'ROUTE_STEPS'.");
return engine_config_ptr();
}
}
}
else if (!disable_feature_dataset.IsUndefined())
{
ThrowError(args.Env(),
"disable_feature_dataset option must be an array and can include the string "
"values 'ROUTE_GEOMETRY', 'ROUTE_STEPS'.");
return engine_config_ptr();
}
if (!path.IsUndefined())
{
engine_config->storage_config = osrm::StorageConfig(path.ToString().Utf8Value(),
engine_config->disable_feature_dataset);
engine_config->use_shared_memory = false;
}
if (!shared_memory.IsUndefined())
{
if (shared_memory.IsBoolean())
{
engine_config->use_shared_memory = shared_memory.ToBoolean().Value();
}
else
{
ThrowError(args.Env(), "Shared_memory option must be a boolean");
return engine_config_ptr();
}
}
if (!mmap_memory.IsUndefined())
{
if (mmap_memory.IsBoolean())
{
engine_config->use_mmap = mmap_memory.ToBoolean().Value();
}
else
{
ThrowError(args.Env(), "mmap_memory option must be a boolean");
return engine_config_ptr();
}
}
if (path.IsUndefined() && !engine_config->use_shared_memory)
{
ThrowError(args.Env(),
"Shared_memory must be enabled if no path is "
"specified");
return engine_config_ptr();
}
auto algorithm = params.Get("algorithm");
if (algorithm.IsEmpty())
return engine_config_ptr();
if (algorithm.IsString())
{
auto algorithm_str = algorithm.ToString().Utf8Value();
if (algorithm_str == "CH")
{
engine_config->algorithm = osrm::EngineConfig::Algorithm::CH;
}
else if (algorithm_str == "CoreCH")
{
engine_config->algorithm = osrm::EngineConfig::Algorithm::CH;
}
else if (algorithm_str == "MLD")
{
engine_config->algorithm = osrm::EngineConfig::Algorithm::MLD;
}
else
{
ThrowError(args.Env(), "algorithm option must be one of 'CH', 'CoreCH', or 'MLD'.");
return engine_config_ptr();
}
}
else if (!algorithm.IsUndefined())
{
ThrowError(args.Env(),
"algorithm option must be a string and one of 'CH', 'CoreCH', or 'MLD'.");
return engine_config_ptr();
}
// Set EngineConfig system-wide limits on construction, if requested
auto max_locations_trip = params.Get("max_locations_trip");
auto max_locations_viaroute = params.Get("max_locations_viaroute");
auto max_locations_distance_table = params.Get("max_locations_distance_table");
auto max_locations_map_matching = params.Get("max_locations_map_matching");
auto max_results_nearest = params.Get("max_results_nearest");
auto max_alternatives = params.Get("max_alternatives");
auto max_radius_map_matching = params.Get("max_radius_map_matching");
auto default_radius = params.Get("default_radius");
if (!max_locations_trip.IsUndefined() && !max_locations_trip.IsNumber())
{
ThrowError(args.Env(), "max_locations_trip must be an integral number");
return engine_config_ptr();
}
if (!max_locations_viaroute.IsUndefined() && !max_locations_viaroute.IsNumber())
{
ThrowError(args.Env(), "max_locations_viaroute must be an integral number");
return engine_config_ptr();
}
if (!max_locations_distance_table.IsUndefined() && !max_locations_distance_table.IsNumber())
{
ThrowError(args.Env(), "max_locations_distance_table must be an integral number");
return engine_config_ptr();
}
if (!max_locations_map_matching.IsUndefined() && !max_locations_map_matching.IsNumber())
{
ThrowError(args.Env(), "max_locations_map_matching must be an integral number");
return engine_config_ptr();
}
if (!max_results_nearest.IsUndefined() && !max_results_nearest.IsNumber())
{
ThrowError(args.Env(), "max_results_nearest must be an integral number");
return engine_config_ptr();
}
if (!max_alternatives.IsUndefined() && !max_alternatives.IsNumber())
{
ThrowError(args.Env(), "max_alternatives must be an integral number");
return engine_config_ptr();
}
if (!max_radius_map_matching.IsUndefined() && max_radius_map_matching.IsString() &&
max_radius_map_matching.ToString().Utf8Value() != "unlimited")
{
ThrowError(args.Env(), "max_radius_map_matching must be unlimited or an integral number");
return engine_config_ptr();
}
if (!default_radius.IsUndefined() && default_radius.IsString() &&
default_radius.ToString().Utf8Value() != "unlimited")
{
ThrowError(args.Env(), "default_radius must be unlimited or an integral number");
return engine_config_ptr();
}
if (max_locations_trip.IsNumber())
engine_config->max_locations_trip = max_locations_trip.ToNumber().Int32Value();
if (max_locations_viaroute.IsNumber())
engine_config->max_locations_viaroute = max_locations_viaroute.ToNumber().Int32Value();
if (max_locations_distance_table.IsNumber())
engine_config->max_locations_distance_table =
max_locations_distance_table.ToNumber().Int32Value();
if (max_locations_map_matching.IsNumber())
engine_config->max_locations_map_matching =
max_locations_map_matching.ToNumber().Int32Value();
if (max_results_nearest.IsNumber())
engine_config->max_results_nearest = max_results_nearest.ToNumber().Int32Value();
if (max_alternatives.IsNumber())
engine_config->max_alternatives = max_alternatives.ToNumber().Int32Value();
if (max_radius_map_matching.IsNumber())
engine_config->max_radius_map_matching = max_radius_map_matching.ToNumber().DoubleValue();
else if (max_radius_map_matching.IsString() &&
max_radius_map_matching.ToString().Utf8Value() == "unlimited")
engine_config->max_radius_map_matching = -1.0;
if (default_radius.IsNumber())
engine_config->default_radius = default_radius.ToNumber().DoubleValue();
else if (default_radius.IsString() && default_radius.ToString().Utf8Value() == "unlimited")
engine_config->default_radius = -1.0;
return engine_config;
}
inline boost::optional<std::vector<osrm::Coordinate>>
parseCoordinateArray(const Napi::Array &coordinates_array)
{
Napi::HandleScope scope(coordinates_array.Env());
boost::optional<std::vector<osrm::Coordinate>> resulting_coordinates;
std::vector<osrm::Coordinate> temp_coordinates;
for (uint32_t i = 0; i < coordinates_array.Length(); ++i)
{
Napi::Value coordinate = coordinates_array.Get(i);
if (coordinate.IsEmpty())
return resulting_coordinates;
if (!coordinate.IsArray())
{
ThrowError(coordinates_array.Env(), "Coordinates must be an array of (lon/lat) pairs");
return resulting_coordinates;
}
Napi::Array coordinate_pair = coordinate.As<Napi::Array>();
if (coordinate_pair.Length() != 2)
{
ThrowError(coordinates_array.Env(), "Coordinates must be an array of (lon/lat) pairs");
return resulting_coordinates;
}
if (!coordinate_pair.Get(static_cast<uint32_t>(0)).IsNumber() ||
!coordinate_pair.Get(static_cast<uint32_t>(1)).IsNumber())
{
ThrowError(coordinates_array.Env(),
"Each member of a coordinate pair must be a number");
return resulting_coordinates;
}
double lon = coordinate_pair.Get(static_cast<uint32_t>(0)).As<Napi::Number>().DoubleValue();
double lat = coordinate_pair.Get(static_cast<uint32_t>(1)).As<Napi::Number>().DoubleValue();
if (std::isnan(lon) || std::isnan(lat) || std::isinf(lon) || std::isinf(lat))
{
ThrowError(coordinates_array.Env(), "Lng/Lat coordinates must be valid numbers");
return resulting_coordinates;
}
if (lon > 180 || lon < -180 || lat > 90 || lat < -90)
{
ThrowError(coordinates_array.Env(),
"Lng/Lat coordinates must be within world bounds "
"(-180 < lng < 180, -90 < lat < 90)");
return resulting_coordinates;
}
temp_coordinates.emplace_back(osrm::util::FloatLongitude{std::move(lon)},
osrm::util::FloatLatitude{std::move(lat)});
}
resulting_coordinates = boost::make_optional(std::move(temp_coordinates));
return resulting_coordinates;
}
// Parses all the non-service specific parameters
template <typename ParamType>
inline bool argumentsToParameter(const Napi::CallbackInfo &args,
ParamType ¶ms,
bool requires_multiple_coordinates)
{
Napi::HandleScope scope(args.Env());
if (args.Length() < 2)
{
ThrowTypeError(args.Env(), "Two arguments required");
return false;
}
if (!args[0].IsObject())
{
ThrowTypeError(args.Env(), "First arg must be an object");
return false;
}
Napi::Object obj = args[0].As<Napi::Object>();
Napi::Value coordinates = obj.Get("coordinates");
if (coordinates.IsEmpty())
return false;
if (coordinates.IsUndefined())
{
ThrowError(args.Env(), "Must provide a coordinates property");
return false;
}
else if (coordinates.IsArray())
{
auto coordinates_array = coordinates.As<Napi::Array>();
if (coordinates_array.Length() < 2 && requires_multiple_coordinates)
{
ThrowError(args.Env(), "At least two coordinates must be provided");
return false;
}
else if (!requires_multiple_coordinates && coordinates_array.Length() != 1)
{
ThrowError(args.Env(), "Exactly one coordinate pair must be provided");
return false;
}
auto maybe_coordinates = parseCoordinateArray(coordinates_array);
if (maybe_coordinates)
{
std::copy(maybe_coordinates->begin(),
maybe_coordinates->end(),
std::back_inserter(params->coordinates));
}
else
{
return false;
}
}
else if (!coordinates.IsUndefined())
{
BOOST_ASSERT(!coordinates.IsArray());
ThrowError(args.Env(), "Coordinates must be an array of (lon/lat) pairs");
return false;
}
if (obj.Has("approaches"))
{
Napi::Value approaches = obj.Get("approaches");
if (approaches.IsEmpty())
return false;
if (!approaches.IsArray())
{
ThrowError(args.Env(), "Approaches must be an arrays of strings");
return false;
}
auto approaches_array = approaches.As<Napi::Array>();
if (approaches_array.Length() != params->coordinates.size())
{
ThrowError(args.Env(),
"Approaches array must have the same length as coordinates array");
return false;
}
for (uint32_t i = 0; i < approaches_array.Length(); ++i)
{
Napi::Value approach_raw = approaches_array.Get(i);
if (approach_raw.IsEmpty())
return false;
if (approach_raw.IsNull())
{
params->approaches.emplace_back();
}
else if (approach_raw.IsString())
{
std::string approach_str = approach_raw.ToString().Utf8Value();
if (approach_str == "curb")
{
params->approaches.push_back(osrm::Approach::CURB);
}
else if (approach_str == "unrestricted")
{
params->approaches.push_back(osrm::Approach::UNRESTRICTED);
}
else
{
ThrowError(args.Env(),
"'approaches' param must be one of [curb, unrestricted]");
return false;
}
}
else
{
ThrowError(args.Env(), "Approach must be a string: [curb, unrestricted] or null");
return false;
}
}
}
if (obj.Has("bearings"))
{
Napi::Value bearings = obj.Get("bearings");
if (bearings.IsEmpty())
return false;
if (!bearings.IsArray())
{
ThrowError(args.Env(), "Bearings must be an array of arrays of numbers");
return false;
}
auto bearings_array = bearings.As<Napi::Array>();
if (bearings_array.Length() != params->coordinates.size())
{
ThrowError(args.Env(), "Bearings array must have the same length as coordinates array");
return false;
}
for (uint32_t i = 0; i < bearings_array.Length(); ++i)
{
Napi::Value bearing_raw = bearings_array.Get(i);
if (bearing_raw.IsEmpty())
return false;
if (bearing_raw.IsNull())
{
params->bearings.emplace_back();
}
else if (bearing_raw.IsArray())
{
auto bearing_pair = bearing_raw.As<Napi::Array>();
if (bearing_pair.Length() == 2)
{
if (!bearing_pair.Get(static_cast<uint32_t>(0)).IsNumber() ||
!bearing_pair.Get(static_cast<uint32_t>(1)).IsNumber())
{
ThrowError(args.Env(), "Bearing values need to be numbers in range 0..360");
return false;
}
const auto bearing =
bearing_pair.Get(static_cast<uint32_t>(0)).ToNumber().Int32Value();
const auto range =
bearing_pair.Get(static_cast<uint32_t>(1)).ToNumber().Int32Value();
if (bearing < 0 || bearing > 360 || range < 0 || range > 180)
{
ThrowError(args.Env(), "Bearing values need to be in range 0..360, 0..180");
return false;
}
params->bearings.push_back(
osrm::Bearing{static_cast<short>(bearing), static_cast<short>(range)});
}
else
{
ThrowError(args.Env(), "Bearing must be an array of [bearing, range] or null");
return false;
}
}
else
{
ThrowError(args.Env(), "Bearing must be an array of [bearing, range] or null");
return false;
}
}
}
if (obj.Has("hints"))
{
Napi::Value hints = obj.Get("hints");
if (hints.IsEmpty())
return false;
if (!hints.IsArray())
{
ThrowError(args.Env(), "Hints must be an array of strings/null");
return false;
}
Napi::Array hints_array = hints.As<Napi::Array>();
if (hints_array.Length() != params->coordinates.size())
{
ThrowError(args.Env(), "Hints array must have the same length as coordinates array");
return false;
}
for (uint32_t i = 0; i < hints_array.Length(); ++i)
{
Napi::Value hint = hints_array.Get(i);
if (hint.IsEmpty())
return false;
if (hint.IsString())
{
if (hint.ToString().Utf8Value().length() == 0)
{
ThrowError(args.Env(), "Hint cannot be an empty string");
return false;
}
params->hints.emplace_back(
osrm::engine::Hint::FromBase64(hint.ToString().Utf8Value()));
}
else if (hint.IsNull())
{
params->hints.emplace_back();
}
else
{
ThrowError(args.Env(), "Hint must be null or string");
return false;
}
}
}
if (obj.Has("radiuses"))
{
Napi::Value radiuses = obj.Get("radiuses");
if (radiuses.IsEmpty())
return false;
if (!radiuses.IsArray())
{
ThrowError(args.Env(), "Radiuses must be an array of non-negative doubles or null");
return false;
}
Napi::Array radiuses_array = radiuses.As<Napi::Array>();
if (radiuses_array.Length() != params->coordinates.size())
{
ThrowError(args.Env(), "Radiuses array must have the same length as coordinates array");
return false;
}
for (uint32_t i = 0; i < radiuses_array.Length(); ++i)
{
Napi::Value radius = radiuses_array.Get(i);
if (radius.IsEmpty())
return false;
if (radius.IsNull())
{
params->radiuses.emplace_back();
}
else if (radius.IsNumber() && radius.ToNumber().DoubleValue() >= 0)
{
params->radiuses.push_back(radius.ToNumber().DoubleValue());
}
else
{
ThrowError(args.Env(), "Radius must be non-negative double or null");
return false;
}
}
}
if (obj.Has("generate_hints"))
{
Napi::Value generate_hints = obj.Get("generate_hints");
if (generate_hints.IsEmpty())
return false;
if (!generate_hints.IsBoolean())
{
ThrowError(args.Env(), "generate_hints must be of type Boolean");
return false;
}
params->generate_hints = generate_hints.ToBoolean().Value();
}
if (obj.Has("skip_waypoints"))
{
Napi::Value skip_waypoints = obj.Get("skip_waypoints");
if (skip_waypoints.IsEmpty())
return false;
if (!skip_waypoints.IsBoolean())
{
ThrowError(args.Env(), "skip_waypoints must be of type Boolean");
return false;
}
params->skip_waypoints = skip_waypoints.ToBoolean().Value();
}
if (obj.Has("exclude"))
{
Napi::Value exclude = obj.Get("exclude");
if (exclude.IsEmpty())
return false;
if (!exclude.IsArray())
{
ThrowError(args.Env(), "Exclude must be an array of strings or empty");
return false;
}
Napi::Array exclude_array = exclude.As<Napi::Array>();
for (uint32_t i = 0; i < exclude_array.Length(); ++i)
{
Napi::Value class_name = exclude_array.Get(i);
if (class_name.IsEmpty())
return false;
if (class_name.IsString())
{
std::string class_name_str = class_name.ToString().Utf8Value();
params->exclude.emplace_back(std::move(class_name_str));
}
else
{
ThrowError(args.Env(), "Exclude must be an array of strings or empty");
return false;
}
}
}
if (obj.Has("format"))
{
Napi::Value format = obj.Get("format");
if (format.IsEmpty())
{
return false;
}
if (!format.IsString())
{
ThrowError(args.Env(), "format must be a string: \"json\" or \"flatbuffers\"");
return false;
}
std::string format_str = format.ToString().Utf8Value();
if (format_str == "json")
{
params->format = osrm::engine::api::BaseParameters::OutputFormatType::JSON;
}
else if (format_str == "flatbuffers")
{
params->format = osrm::engine::api::BaseParameters::OutputFormatType::FLATBUFFERS;
}
else
{
ThrowError(args.Env(), "format must be a string: \"json\" or \"flatbuffers\"");
return false;
}
}
if (obj.Has("snapping"))
{
Napi::Value snapping = obj.Get("snapping");
if (snapping.IsEmpty())
return false;
if (!snapping.IsString())
{
ThrowError(args.Env(), "Snapping must be a string: [default, any]");
return false;
}
std::string snapping_str = snapping.ToString().Utf8Value();
if (snapping_str == "default")
{
params->snapping = osrm::RouteParameters::SnappingType::Default;
}
else if (snapping_str == "any")
{
params->snapping = osrm::RouteParameters::SnappingType::Any;
}
else
{
ThrowError(args.Env(), "'snapping' param must be one of [default, any]");
return false;
}
}
return true;
}
template <typename ParamType>
inline bool parseCommonParameters(const Napi::Object &obj, ParamType ¶ms)
{
if (obj.Has("steps"))
{
auto steps = obj.Get("steps");
if (steps.IsEmpty())
return false;
if (steps.IsBoolean())
{
params->steps = steps.ToBoolean().Value();
}
else
{
ThrowError(obj.Env(), "'steps' param must be a boolean");
return false;
}
}
if (obj.Has("annotations"))
{
auto annotations = obj.Get("annotations");
if (annotations.IsEmpty())
return false;
if (annotations.IsBoolean())
{
params->annotations = annotations.ToBoolean().Value();
params->annotations_type = params->annotations
? osrm::RouteParameters::AnnotationsType::All
: osrm::RouteParameters::AnnotationsType::None;
}
else if (annotations.IsArray())
{
Napi::Array annotations_array = annotations.As<Napi::Array>();
for (std::size_t i = 0; i < annotations_array.Length(); i++)
{
std::string annotations_str = annotations_array.Get(i).ToString().Utf8Value();
if (annotations_str == "duration")
{
params->annotations_type =
params->annotations_type | osrm::RouteParameters::AnnotationsType::Duration;
}
else if (annotations_str == "nodes")
{
params->annotations_type =
params->annotations_type | osrm::RouteParameters::AnnotationsType::Nodes;
}
else if (annotations_str == "distance")
{
params->annotations_type =
params->annotations_type | osrm::RouteParameters::AnnotationsType::Distance;
}
else if (annotations_str == "weight")
{
params->annotations_type =
params->annotations_type | osrm::RouteParameters::AnnotationsType::Weight;
}
else if (annotations_str == "datasources")
{
params->annotations_type = params->annotations_type |
osrm::RouteParameters::AnnotationsType::Datasources;
}
else if (annotations_str == "speed")
{
params->annotations_type =
params->annotations_type | osrm::RouteParameters::AnnotationsType::Speed;
}
else
{
ThrowError(obj.Env(), "this 'annotations' param is not supported");
return false;
}
params->annotations =
params->annotations_type != osrm::RouteParameters::AnnotationsType::None;
}
}
else
{
ThrowError(obj.Env(), "this 'annotations' param is not supported");
return false;
}
}
if (obj.Has("geometries"))
{
Napi::Value geometries = obj.Get("geometries");
if (geometries.IsEmpty())
return false;
if (!geometries.IsString())
{
ThrowError(obj.Env(), "Geometries must be a string: [polyline, polyline6, geojson]");
return false;
}
std::string geometries_str = geometries.ToString().Utf8Value();
if (geometries_str == "polyline")
{
params->geometries = osrm::RouteParameters::GeometriesType::Polyline;
}
else if (geometries_str == "polyline6")
{
params->geometries = osrm::RouteParameters::GeometriesType::Polyline6;
}
else if (geometries_str == "geojson")
{
params->geometries = osrm::RouteParameters::GeometriesType::GeoJSON;
}
else
{
ThrowError(obj.Env(),
"'geometries' param must be one of [polyline, polyline6, geojson]");
return false;
}
}
if (obj.Has("overview"))
{
Napi::Value overview = obj.Get("overview");
if (overview.IsEmpty())
return false;
if (!overview.IsString())
{
ThrowError(obj.Env(), "Overview must be a string: [simplified, full, false]");
return false;
}
std::string overview_str = overview.ToString().Utf8Value();