为什么Google Geocoding API在没有密钥的情况下可以工作? [英] Why does the Google Geocoding API work without key?

问题描述

我正在阅读Google Geocoding API的文档，并且注意到它说地理编码请求中需要一个密钥，但是当我执行" https://地图时. googleapis.com/maps/api/geocode/json?address=LosAngeles，美国"，它给了我预期的结果.

I'm reading the documentation for the Google Geocoding API, and I noticed that it says that a key is required in a geocoding request, but when I do "https://maps.googleapis.com/maps/api/geocode/json?address=LosAngeles,usa" it gives me the expected result.

这是为什么?文档是否有误?一定数量的请求后，它会开始询问密钥吗?还是我不了解的东西?

Why is this? Is the documentation wrong? Will it start asking for the key after a certain amount of requests? Or is there something I'm not understanding?

推荐答案

大多数地理编码API请求都不需要提供密钥.如果您不提供密钥，则Google将使用基于IP的配额来确定您何时达到每日2,500个查询的限制.

Providing a key is not required for most geocoding API requests. When you do not provide a key, Google will use an IP-based quota to determine when you reach the 2,500-queries daily limit.

某些参数需要为密钥，并且不允许基于IP的配额.这些在文档中明确标记为:

Some parameters require a key and will not allow IP-based quota. These are explicitly marked in the documentation with:

注意:该参数仅适用于包含API密钥或客户端ID的请求.

Note: This parameter is available only for requests that include an API key or a client ID.

当前，这仅适用于反向地理编码中的两个参数:result_type和location_type.

Currently, this is only for two parameters in reverse geocoding: result_type and location_type.

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