Met Office Datapoint

A JavaScript module for accessing weather data via the Met Office's legacy open data API known as DataPoint.

Disclaimer: This module is in no way part of the DataPoint service or otherwise affiliated with the Met Office in any way

Features

• Retrieve a list of sites providing observations
• Retrieve a list of timesteps that observations are available for
• Retrieve observation data for site(s)
• Retrieve a list of sites that forecast data is avaialble for
• Retrieve a list of timesteps that forecast data is available for
• Retrieve forecast data for site(s)

Installation

The module can be directly installed via npm or yarn, e.g.

npm install metoffice-datapoint

Usage

The module needs to be instantiated with an API key from Met Office DataPoint.

const datapoint = require('metoffice-datapoint')
const apiKey = '01234567-89ab-cdef-ghij-klmnopqrstuv' // API Key
{Observations, Forecasts} = datapoint(apiKey)

The module can additionally be instantiated with a logging object to produce logging messages. The logging object is expected to contain methods for error, warn, info, trace, and debug (i.e. winston, log4js, ...)

const winston = require('winston')
logger = winston.createLogger({
  transports: [new winston.transports.Console()]
})

{Observations, Forecast} = datapoint(apiKey, logger)

Observations

Sitelist

Observations.sitelist()
.then((sites) => {
	console.log(sites)
})

Capabilities

Observations.capabilities()
.then((timestep) => {
	console.log(timestep) // Timesteps are Date objects
})

Values

Observations.values()
.then((reports) => {
	console.log(reports)
})

Forecasts

Sitelist

Forecast.sitelist()
.then((sites) => {
	console.log(sites)
})

Capabilities

Forecast.capabilities()
.then((timestep) => {
	console.log(timestep) // Timesteps are Date objects
})

Values

Forecast.values()
.then((reports) => {
	console.log(reports)
})