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  • WeatherLayers Cloud
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  • Example
  • Example: Load current data
  • Example: Load data by datetime
  • Constructor
  • Config properties
  • Methods
  1. WeatherLayers Cloud

Client

Last updated 2 months ago

Client providing access to weather data from WeatherLayers Cloud or a compatible catalog

Example

Configure client with your WeatherLayers Cloud access token created in .

import * as WeatherLayersClient from 'weatherlayers-gl/client';

// use your WeatherLayers Cloud access token
const client = new WeatherLayersClient.Client({
  accessToken: 'xxx',
  datetimeInterpolate: true,
});

// load dataset slice, load data in the first available datetime
const dataset = 'gfs/wind_10m_above_ground';
const {title, unitFormat, attribution, referenceDatetimeRange, palette} = await client.loadDataset(dataset);
const {datetimes} = await client.loadDatasetSlice(dataset, datetimeRange);
const datetime = datetimes[0];
const {image, image2, imageWeight, imageType, imageUnscale, bounds} = await client.loadDatasetData(dataset, datetime);

Example: Load current data

// load current data
const dataset = 'gfs/wind_10m_above_ground';
const {title, unitFormat, attribution, referenceDatetimeRange, palette} = await client.loadDataset(dataset);
const {image, image2, imageWeight, imageType, imageUnscale, bounds} = await client.loadDatasetData(dataset);

Example: Load data by datetime

// calculate the datetime range for visualization as 0-24 forecast
const datetimeRange = WeatherLayers.offsetDatetimeRange(new Date().toISOString(), 0, 24);

// load dataset slice, load data in the first available datetime
const dataset = 'gfs/wind_10m_above_ground';
const {title, unitFormat, attribution, referenceDatetimeRange, palette} = await client.loadDataset(dataset);
const {datetimes} = await client.loadDatasetSlice(dataset, datetimeRange);
const datetime = datetimes[0];
const {image, image2, imageWeight, imageType, imageUnscale, bounds} = await client.loadDatasetData(dataset, datetime);

Constructor

Client(config: ClientConfig = {})

Config properties

url

Type: string, optional

Default: https://catalog.weatherlayers.com (WeatherLayers Cloud)

Catalog url

accessToken

Type: string, optional

Default: none (but required for WeatherLayers Cloud)

Catalog access token

dataFormat

Type: string, optional

Default: byte.png

unitSystem

Default: METRIC

Unit system for unit format definition.

attributionLinkClass

Type: string, optional

Attribution link class, used in Dataset, attribution field

datetimeStep

Type: number, optional

Default: 1

Minimal step in hours between datetimes.

datetimeInterpolate

Type: boolean, optional

Enable datetime interpolation.

For example, if a datetime 6:30 is requested, but 6:00 and 7:00 exist, { image: <6:00>, image2: <7:00>, imageWeight: 0.5 } is returned by loadDatasetData.

Methods

loadCatalog(): Promise<string[]>

Loads dataset ids from the catalog.

Loads dataset metadata from the catalog.

Loads dataset slice with available datetimes in the given datetime range from the catalog.

The current data with offset can be loaded by providing datetimeRange = WeatherLayers.offsetDatetimeRange(new Date().toISOString(), 0, 24).

Loads dataset data at the given datetime from the catalog. If the datetime is not provided, the current data is loaded.

GeoTIFF requires as a peer dependency.

Type: , optional

loadDataset(dataset: string, config: ClientConfig = {}): Promise<>

loadDatasetSlice(dataset: string, datetimeRange: , config: ClientConfig = {}): Promise<>

loadDatasetData(dataset: string, datetime?: , config: ClientConfig = {}): Promise<>

WeatherLayers Account
geotiff.js
UnitSystem
Dataset
DatetimeISOStringRange
DatasetSlice
DatetimeISOString
DatasetData