This is a library designed to facilitate requests to the Nominatim API.

It is part of the Simple Nominatim monorepo. You can also search for the @simple-nominatim/core package on npm.

Disclaimers

The utilization of this project is governed by the Nominatim Usage Policy (aka Geocoding Policy). Please adhere to fair usage practices as outlined by the OSMF Operations Working Group.

The owner and contributors of the Simple Nominatim project, including its libraries, assume no responsibility for any misuse.

Installation

Simple Nominatim currently only supports the Search, Reverse and Status endpoints.

npm install -g @simple-nominatim/core

Usage

Reverse Endpoint

Geocode

Use the geocodeReverse method directly in your code:

import { geocodeReverse } from '@simple-nominatim/core'

const results = await geocodeReverse({ latitude: '37.4219999', longitude: '-122.0840575' }, { format: 'jsonv2' })

Parameters

• latitude: Specify the latitude of the coordinate.
  • This is a required option.
• longitude: Specify the longitude of the coordinate.
  • This is a required option.

Options

• email: Specify an appropriate email address when making large numbers of identified request.
• format: Define the output format.
  • This is a required option.
  • Values include xml, json, jsonv2, geojson, and geocodejson.

Search Endpoint

Free-form query

Use the freeFormSearch method directly in your code:

import { freeFormSearch } from '@simple-nominatim/core'

const results = await freeFormSearch({ query: '1600 Amphitheatre Parkway, Mountain View, CA, USA' }, { format: 'jsonv2' })

Parameters

• query: A free-form query string to search.
  • This is a required option.

Options

• email: Specify an appropriate email address when making large numbers of identified request.
• format: Define the output format.
  • This is a required option.
  • Values include xml, json, jsonv2, geojson, and geocodejson.
• limit: Specify the maximum number of returned results. Cannot be more than 40.

Structured query

Use the structuredSearch method directly in your code:

import { structuredSearch } from '@simple-nominatim/core'

const results = await structuredSearch({ country: 'USA' }, { format: 'jsonv2' })

Parameters

• amenity: Specify the name or type of point of interest (POI).
• city: Specify the city name.
• country: Specify the country name.
  • This is a required option.
• county: Specify the county name.
• postalcode: Specify the postal code.
• state: Specify the state name.
• street: Specify the house number and street name.

Options

• email: Specify an appropriate email address when making large numbers of identified request.
• format: Define the output format.
  • This is a required option.
  • Values include xml, json, jsonv2, geojson, and geocodejson.
• limit: Specify the maximum number of returned results. Cannot be more than 40.

Status Endpoint

Service

Use the serviceStatus method directly in your code:

import { serviceStatus } from '@simple-nominatim/core'

const results = await serviceStatus({ format: 'json' })

Options

• --format: Define the output format.
  • This is a required option.
  • Values include text and json.

License

Simple Nominatim Core is MIT licensed.