Add support for flexible TLS configuration (#46)

.github/workflows/pull-request.yml

@@ -2,13 +2,13 @@ jobs:
   main:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.13'
-      - uses: golangci/golangci-lint-action@v2
+      - uses: golangci/golangci-lint-action@v3
         with:
-          version: v1.35
+          version: v1.47.3
       - run: go test -v
 
 on: pull_request

.golangci.yml

@@ -4,4 +4,7 @@ issues:
 linters:
   enable:
     - goimports
-    - golint
+    - revive
+
+run:
+  deadline: 5m

client.go

@@ -32,8 +32,14 @@ func NewClient(basePath, token string, sourceID int) (Client, error) {
 //
 // The resulting client does not verify the TLS certificate of the configured server.
 func NewClientDisableTLSCertificateVerification(basePath, token string, sourceID int) Client {
+	config := &tls.Config{InsecureSkipVerify: true}
+	return NewClientWithTLSConfig(basePath, token, config, sourceID)
+}
+
+// NewClientWithTLSConfig creates a new client that uses the given TLS configuration.
+func NewClientWithTLSConfig(basePath, token string, config *tls.Config, sourceID int) Client {
 	transport := http.DefaultTransport.(*http.Transport).Clone()
-	transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
+	transport.TLSClientConfig = config
 	client := &http.Client{Transport: transport}
 	return Client{
 		basePath: basePath,