GetHTTPTransport returns HttpTransport based on insecure configuration.

GetHTTPTransportByInsecure returns a insecure HttpTransport if insecure is true or it returns secure one.

GetInternalCertPair used to get internal cert and key pair from environment.

GetInternalTLSConfig return a tls.Config for internal https communicate.

InternalEnableVerifyClientCert returns true if mTLS enabled.

InternalTLSEnabled returns true if internal TLS enabled.

NewClient creates an instance of Client.

NewServerTLSConfig returns a modern tls config, refer to https://blog.cloudflare.com/exposing-go-on-the-internet/.

InsecureTransport used to get the insecure http Transport.

SecureTransport used to get the external secure http Transport.

Client is a util for common HTTP operations, such Get, Head, Post, Put and Delete.

Error wrap HTTP status code and message as an error.