DefaultRequestKey used to get key of HTTP request if you don't know how to get the key.

ReadBody will automatically unzip body.

deprecated.

nolint:errname.

APIRateLimiterImpl is default implemented of APIRateLimiter based on tollbooth.

Dynamic error create based on specific HttpError.

ReporterImpl used to report API stats TODO: We should implemente a default API metric reporter under cliutils.

APIMetricReporter used to collects API metrics during API handing.

RateLimiter used to define API request rate limiter.

RequestKey is a callback used to calculate request @r's ID, we can use r.Method + tkn + r.URL.Path as the id of @r, if the ID is empty string, it's degrade into a simple rate limiter(all API's request are limited under the rate).