ensemblemeteo

package
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Published: Jun 14, 2026 License: Apache-2.0 Imports: 10 Imported by: 0

Documentation

Overview

Package ensemblemeteo is the library behind the ensemblemeteo command line: the HTTP client, request shaping, and the typed data models for the Open-Meteo Ensemble Weather Forecast API (probabilistic forecasts).

The Client here is the spine every command shares. It sets a real User-Agent, paces requests so a busy session stays polite, and retries the transient failures (429 and 5xx) that any public API throws under load.

Index

Constants

View Source
const DefaultUserAgent = "ensemblemeteo/dev (+https://github.com/tamnd/ensemblemeteo-cli)"

DefaultUserAgent identifies the client to Open-Meteo.

View Source
const Host = "ensemble-api.open-meteo.com"

Host is the ensemble API host.

Variables

This section is empty.

Functions

This section is empty.

Types

type Client

type Client struct {
	HTTP      *http.Client
	UserAgent string
	BaseURL   string
	// Rate is the minimum gap between requests. Zero means no pacing.
	Rate    time.Duration
	Retries int
	// contains filtered or unexported fields
}

Client talks to the Open-Meteo ensemble API over HTTP.

func NewClient

func NewClient() *Client

NewClient returns a Client with the default config.

func (*Client) ForecastEnsemble

func (c *Client) ForecastEnsemble(ctx context.Context, lat, lon float64, days int, model string) ([]EnsembleForecast, error)

ForecastEnsemble fetches the ensemble forecast and returns per-hour records with temperature mean, min, and max across all ensemble members.

func (*Client) Get

func (c *Client) Get(ctx context.Context, rawURL string) ([]byte, error)

Get fetches url and returns the response body. It paces and retries according to the client's settings.

type Config

type Config struct {
	BaseURL string
	Rate    time.Duration
	Retries int
	Timeout time.Duration
}

Config holds the tunable knobs for the client.

func DefaultConfig

func DefaultConfig() Config

DefaultConfig returns sensible defaults for the Open-Meteo ensemble API.

type Domain

type Domain struct{}

Domain is the ensemblemeteo driver. It carries no state.

func (Domain) Classify

func (Domain) Classify(input string) (uriType, id string, err error)

Classify turns any accepted input into the canonical (type, id). Two floats separated by comma → ("latlon", input) else → ("query", input)

func (Domain) Info

func (Domain) Info() kit.DomainInfo

Info describes the scheme, the hostnames a pasted link is matched against, and the identity reused for the binary's help and version.

func (Domain) Locate

func (Domain) Locate(uriType, id string) (string, error)

Locate is the inverse: the live https URL for a (type, id).

func (Domain) Register

func (Domain) Register(app *kit.App)

Register installs the client factory and every operation onto app.

type EnsembleForecast

type EnsembleForecast struct {
	Time        string  `kit:"id" json:"time"`
	Temperature float64 `json:"temperature"` // mean of all members
	TempMin     float64 `json:"temp_min"`    // min across members
	TempMax     float64 `json:"temp_max"`    // max across members
}

EnsembleForecast holds computed statistics for one time step across all ensemble members.

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