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Заметка: Получение позиций транспорта
Yury D edited this page Mar 16, 2019
·
1 revision
Походу запрос такого типа делает это (или не это, но все равно более чем заслуживает внимания):
Результат:
Нажать вот сюда чтобы увидеть большой и очень толстый JSON
{
"data": [
{
"type": "FeatureCollection",
"properties": {
"VehicleMetaData": {
"id": "mosobl%5Fdta|1023",
"Transport": {
"id": "2037281384",
"lineId": "2037272262",
"name": "472",
"Types": [
"bus"
],
"type": "bus"
}
}
},
"features": [
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.516835,
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],
[
37.516912999999995,
55.939392
]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 5,
"time": 1552392220
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.516912999999995,
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],
[
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],
[
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],
[
37.516996999999996,
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],
[
37.517132,
55.938964
],
[
37.517196999999996,
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],
[
37.517314999999996,
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],
[
37.517478,
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],
[
37.517645,
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],
[
37.517652,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 44,
"time": 1552392225
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.517652,
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],
[
37.517663,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 11,
"time": 1552392269
}
}
}
]
},
{
"type": "FeatureCollection",
"properties": {
"VehicleMetaData": {
"id": "mosobl%5Fdta|1026",
"Transport": {
"id": "2037281383",
"lineId": "2037272262",
"name": "472",
"Types": [
"bus"
],
"type": "bus"
}
}
},
"features": [
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
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],
[
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],
[
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],
[
37.435795,
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],
[
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],
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],
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],
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],
[
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],
[
37.436747,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 21,
"time": 1552392220
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
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],
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],
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],
[
37.437051,
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]
]
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"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 4,
"time": 1552392241
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.437051,
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],
[
37.437051,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 9,
"time": 1552392245
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.437051,
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],
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],
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],
[
37.437278,
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],
[
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 3,
"time": 1552392254
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.437343,
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],
[
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],
[
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],
[
37.438392,
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],
[
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 20,
"time": 1552392257
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.43909,
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],
[
37.439298,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 3,
"time": 1552392277
}
}
}
]
},
{
"type": "FeatureCollection",
"properties": {
"VehicleMetaData": {
"id": "mosobl%5Fdta|1027",
"Transport": {
"id": "2037281384",
"lineId": "2037272262",
"name": "472",
"Types": [
"bus"
],
"type": "bus"
}
}
},
"features": [
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
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],
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]
]
},
"properties": {
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"duration": 1,
"time": 1552392220
}
}
},
{
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],
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37.46284,
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],
[
37.463023,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 6,
"time": 1552392221
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.463023,
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],
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37.463085,
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],
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],
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37.463477999999995,
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],
[
37.463879,
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],
[
37.464138,
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],
[
37.464380999999996,
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],
[
37.464566999999995,
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],
[
37.464755,
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],
[
37.464962,
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],
[
37.465274,
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],
[
37.465517,
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],
[
37.465652,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 13,
"time": 1552392227
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.465652,
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],
[
37.465754,
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],
[
37.465835999999996,
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],
[
37.466015999999996,
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],
[
37.466041,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 2,
"time": 1552392240
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
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],
[
37.466041,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 7,
"time": 1552392242
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
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"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 2,
"time": 1552392249
}
}
},
{
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"geometry": {
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"coordinates": [
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37.468371,
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37.468717999999996,
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],
[
37.468908,
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]
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},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 12,
"time": 1552392251
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
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],
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37.471312999999995,
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 10,
"time": 1552392263
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
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],
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],
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 7,
"time": 1552392273
}
}
}
]
},
{
"type": "FeatureCollection",
"properties": {
"VehicleMetaData": {
"id": "mosobl%5Fdta|812",
"Transport": {
"id": "2037281383",
"lineId": "2037272262",
"name": "472",
"Types": [
"bus"
],
"type": "bus"
}
}
},
"features": [
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
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"time": 1552392220
}
}
},
{
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},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 15,
"time": 1552392234
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
37.509097,
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],
[
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37.507754999999996,
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[
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 23,
"time": 1552392249
}
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 8,
"time": 1552392272
}
}
}
]
},
{
"type": "FeatureCollection",
"properties": {
"VehicleMetaData": {
"id": "mosobl%5Fdta|844",
"Transport": {
"id": "2037281384",
"lineId": "2037272262",
"name": "472",
"Types": [
"bus"
],
"type": "bus"
}
}
},
"features": [
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[
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],
[
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]
]
},
"properties": {
"type": "Feature",
"TrajectorySegmentMetaData": {
"duration": 86400,
"time": 1552392106
}
}
}
]
}
]
}
!!! ПРЕКРАТИ СКРОЛЛИТЬ СТРАНИЦУ ТЕБЕ СКАЗАЛИ !!!
ОК, Яндекс не выдает актуальные координаты транспорта, он выдает "траекторию" по каждому автобусу в виде отрезков, и отрисовывает движение машины в реальном времени. Адовая дичь. Скорее всего это сделано для снижения нагрузки на сервер, один раз отдали данные пользователю и отрисовываем их после этого, не запрашивая новые каждую секунду, все плавно, юзер счастлив (пока не попал в ситуацию что приложуха показало "твой бас уже здесь", а он там в пробке стоит за квартал на светофоре, КАК У МЕНЯ КАЖДОЕ УТРО).
Как минимум этот запрос сильно упрощает подсчет количества машин на маршруте, но теперь жизненно необходимо получать "Оригинальный JSON" (и этот тоже) через Selenium.
UPD 16.03.2019: Открытая страница яндекс-карт выполняет этот запрос постоянно, видимо обновляя данные. Если повезет - они кэшируются.