Usage example

Author: everesio

README.md

@@ -7,3 +7,102 @@
 
 The cert-source is a library designed to help with loading of TLS certificates and to streamline the process of
 certificate rotation.
+
+
+## Usage
+
+### Installation
+
+```bash
+go get -u github.com/grepplabs/cert-source
+```
+
+### TLS server
+
+```go
+package main
+
+import (
+	"fmt"
+	"log"
+	"log/slog"
+	"net/http"
+	"time"
+
+	tlsconfig "github.com/grepplabs/cert-source/config"
+	tlsserverconfig "github.com/grepplabs/cert-source/tls/server/config"
+)
+
+func main() {
+	tlsConfig, err := tlsserverconfig.GetServerTLSConfig(slog.Default(), &tlsconfig.TLSServerConfig{
+		Enable:  true,
+		Refresh: 1 * time.Second,
+		File: tlsconfig.TLSServerFiles{
+			Key:       "key.pem",
+			Cert:      "cert.pem",
+			ClientCAs: "",
+			ClientCLR: "",
+		},
+	})
+	if err != nil {
+		log.Fatalln(err)
+	}
+	server := &http.Server{
+		Addr:      ":8443",
+		TLSConfig: tlsConfig,
+	}
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		_, _ = fmt.Fprintf(w, "Hello, TLS world!")
+	})
+	err = server.ListenAndServeTLS("", "")
+	if err != nil {
+		log.Fatalln(err)
+	}
+}
+```
+
+### TLS Client
+
+```go
+package main
+
+import (
+	"io"
+	"log"
+	"log/slog"
+	"net/http"
+	"time"
+
+	tlsconfig "github.com/grepplabs/cert-source/config"
+	tlsclient "github.com/grepplabs/cert-source/tls/client"
+	tlsclientconfig "github.com/grepplabs/cert-source/tls/client/config"
+)
+
+func main() {
+	tlsClientConfigFunc, err := tlsclientconfig.GetTLSClientConfigFunc(slog.Default(), &tlsconfig.TLSClientConfig{
+		Enable:             true,
+		Refresh:            1 * time.Second,
+		InsecureSkipVerify: false,
+		File: tlsconfig.TLSClientFiles{
+			Key:     "",
+			Cert:    "",
+			RootCAs: "ca.pem",
+		},
+	})
+	if err != nil {
+		log.Fatalln(err)
+	}
+	transport := tlsclient.NewDefaultRoundTripper(tlsclient.WithClientTLSConfig(tlsClientConfigFunc()))
+	client := &http.Client{Transport: transport}
+	resp, err := client.Get("https://localhost:8443")
+	if err != nil {
+		log.Fatalln(err)
+	}
+	defer resp.Body.Close()
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatalf("Failed to read response body: %v", err)
+	}
+	log.Printf("Server response: %s", body)
+}
+```