google-maps - 为什么 Google 地理编码 API 可以在没有 key 的情况下工作？

Question

我正在阅读 Google Geocoding API 的文档，我注意到它 says地理编码请求中需要一个 key ，但是当我执行“https://maps.googleapis.com/maps/api/geocode/json?address=LosAngeles,usa”时，它给了我预期的结果。

为什么是这样？文档有错吗？它会在一定数量的请求后开始请求 key 吗？还是有什么我不明白的？

Answer 1

source

Beginning on June 11, 2018, you’ll need to enable billing with a credit card and have a valid API key for all projects. This will give you the ability to scale easily with less downtime and fewer performance issues. In addition, we’re simplifying our 18 individual APIs into three products: Maps, Routes, and Places.

Also, in June 2016 we announced that we would stop supporting keyless usage, meaning any request that doesn’t include an API key or Client ID. This will go into effect on June 11th, and keyless access will no longer be supported. At that time, keyless calls to the Maps JavaScript API and Street View API will return low-resolution maps watermarked with “for development purposes only.” Keyless calls to any of the following APIs will return an error: Maps Static API (including Static Street View), Directions API, Distance Matrix API, Geocoding API, Geolocation API, Places API, Roads API, and Time Zone API.

To avoid a service interruption to your projects, please visit our Get Started page to enable a billing account and generate an API key. Once you generate and secure an API key, make sure to update your application with the new API key.