Yahoo provides an interface to geodata
Starting today, Yahoo has opened software interfaces to access its global geographical identity database WoeID (Where on Earth ID). Now third-party sites can use this service for free on their sites.
The main purpose of WoeID - the assignment of unique identifiers for objects that are on the earth's surface. The exact longitude and latitude of the area of the object, as well as its name, country, type of object, etc., are encoded in these short numeric identifiers. This is a very convenient identification system that can be used as tags for a variety of information. For example, it is used to tag photos in the Flickr service. Since the system also stores other information besides geographical coordinates, when searching for photos, you can limit your search not only to a square in the area, but to specific territories: for example, by state or city.
In addition, a search engine is built into the Yahoo geo-platform, with which you can get the exact coordinates of objects by simply entering the URL with the search word in brackets, for example, the query http://where.yahooapis.com/v1/places.q(moscow%20russia) returns the coordinates of the city of Moscow (WoeID = 2122265). As you can see, access to the database is open simply via HTTP GET. Currently, the limit on the maximum number of queries to the database is 50,000 per day.
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The WoeID service is only part of the Yahoo Internet Location Platform , a fundamental geographic platform that is currently being tested.
The main purpose of WoeID - the assignment of unique identifiers for objects that are on the earth's surface. The exact longitude and latitude of the area of the object, as well as its name, country, type of object, etc., are encoded in these short numeric identifiers. This is a very convenient identification system that can be used as tags for a variety of information. For example, it is used to tag photos in the Flickr service. Since the system also stores other information besides geographical coordinates, when searching for photos, you can limit your search not only to a square in the area, but to specific territories: for example, by state or city.
In addition, a search engine is built into the Yahoo geo-platform, with which you can get the exact coordinates of objects by simply entering the URL with the search word in brackets, for example, the query http://where.yahooapis.com/v1/places.q(moscow%20russia) returns the coordinates of the city of Moscow (WoeID = 2122265). As you can see, access to the database is open simply via HTTP GET. Currently, the limit on the maximum number of queries to the database is 50,000 per day.
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The WoeID service is only part of the Yahoo Internet Location Platform , a fundamental geographic platform that is currently being tested.
Source: https://habr.com/ru/post/25315/
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