mirror of
https://github.com/ConnectedHumber/Air-Quality-Web
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111 lines
4.6 KiB
Markdown
111 lines
4.6 KiB
Markdown
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# API
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The server-side API is accessed through `api.php`, and supports a number of GET parameters. The most important of these is the `action` parameter, Which determines what the API will do. The following values are supported:
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## version
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> Returns the version of the application.
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_No parameters are currently supported by this action._
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Examples:
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```
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https://example.com/path/to/api.php?action=version
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```
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## fetch-data
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> Fetches air quality data from the system for a specific data type at a specific date and time.
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Parameter | Type | Meaning
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--------------------|-----------|---------------------
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`datetime` | date/time | Required. Specifies the date and time for which readings are desired. For current data use the special keyword `now`.
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`reading_type` | string | Required. Specifies the type of reading desired.
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`format` | string | Optional. Specifies the format that the response will be returned in. Valid values: `json`, `csv`. Default: `json`.
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Examples:
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```
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https://example.com/path/to/api.php?action=fetch-data&datetime=2019-01-03%2007:52:10&reading_type=PM10
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https://example.com/path/to/api.php?action=fetch-data&datetime=now&reading_type=PM10
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```
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## list-devices
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> Fetches a list of devices currently in the system.
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Parameter | Type | Meaning
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--------------------|-----------|---------------------
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`only-with-location`| bool | Optional. If present only devices with a defined location will be returned. Useful for getting a list of devices to place on a map.
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`format` | string | Optional. Specifies the format that the response will be returned in. Valid values: `json`, `csv`. Default: `json`.
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Examples:
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```
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https://example.com/path/to/api.php?action=list-devices
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https://example.com/path/to/api.php?action=list-devices&only-with-location=yes
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```
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## device-info
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> Gets (lots of) information about a single device.
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Parameter | Type | Meaning
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--------------------|-----------|---------------------
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`device-id` | int | Required. The id of the device to get extended information for. See the `list-device` action for how to get a hold of one.
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Examples:
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## list-reading-types
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> Lists the different types of readings that can be specified.
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Parameter | Type | Meaning
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--------------------|-----------|---------------------
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`device-id` | int | Optional. If specified, this filters the list of measurement types to list only those reported by the device with the specified id.
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`format` | string | Optional. Specifies the format that the response will be returned in. Valid values: `json`, `csv`. Default: `json`.
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```
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https://example.com/path/to/api.php?action=list-reading-types
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https://example.com/path/to/api.php?action=list-reading-types&device-id=22
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https://example.com/path/to/api.php?action=list-reading-types&device-id=54
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```
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## device-data-bounds
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> Gets the start and end DateTime bounds for the data recorded for a specific device.
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Parameter | Type | Meaning
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--------------------|-----------|---------------------
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`device-id` | int | Required. The id of the device to get the data DateTime bounds for.
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```
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https://example.com/path/to/api.php?action=device-data-bounds&device-id=18
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https://example.com/path/to/api.php?action=device-data-bounds&device-id=11
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```
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## device-data
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> Gets data by device given a start and end time.
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Parameter | Type | Meaning
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--------------------|-----------|---------------------
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`device-id` | int | The id of the device to get data for.
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`reading-type` | string | The type of reading to obtain data for.
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`start` | datetime | The starting datetime.
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`end` | datetime | The ending datetime.
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`average-seconds` | int | Optional. If specified, readings will be grouped into lumps of this many seconds and averaged. For example a value of 3600 (1 hour) will return 1 data point per hour, with the value of each point an average of all the readings for that hour.
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`format` | string | Optional. Specifies the format that the response will be returned in. Valid values: `json`, `csv`. Default: `json`.
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```
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https://example.com/path/to/api.php?action=device-data&device-id=18&reading-type=PM25&start=2019-01-19T18:14:59.992Z&end=2019-01-20T18:14:59.992Z
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https://example.com/path/to/api.php?action=device-data&device-id=18&reading-type=PM25&start=2019-01-19T18:14:59.992Z&end=2019-01-20T18:14:59.992Z&average-seconds=3600
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https://example.com/path/to/api.php?action=device-data&device-id=18&reading-type=PM25&start=2019-01-19T18:14:59.992Z&end=now&average-seconds=3600&format=csv
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```
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## changelog
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> Gets the changelog as a fragment of HTML.
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_No parameters are currently supported by this action._
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```
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https://example.com/path/to/api.php?action=changelog
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```
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