Add Headers() and Header(string) to Request interface for HTTP purposes

pkg/gofr/cmd/request.go

@@ -86,6 +86,14 @@ func (*Request) HostName() (hostname string) {
 	return hostname
 }
 
+func (r *Request) Headers() map[string][]string {
+	return make(map[string][]string) // Not applicable for CMD, can be implemented if needed
+}
+
+func (r *Request) Header(key string) string {
+	return "" // Not applicable for CMD, can be implemented if needed
+}
+
 // Params retrieves all values for a given query parameter key, including comma-separated values.
 func (r *Request) Params(key string) []string {
 	value, exists := r.params[key]

pkg/gofr/cron.go

@@ -183,6 +183,15 @@ func (noopRequest) Bind(any) error {
 	return nil
 }
 
+func (noopRequest) Headers() map[string][]string {
+	return nil
+}
+
+func (noopRequest) Header(string) string {
+	return ""
+}
+
 func (noopRequest) Params(string) []string {
 	return nil
 }
+

pkg/gofr/datasource/pubsub/message.go

@@ -110,6 +110,14 @@ func (*Message) HostName() string {
 	return ""
 }
 
+func (*Message) Headers() map[string][]string {
+	return make(map[string][]string)
+}
+
+func (m *Message) Header(key string) string {
+	return ""
+}
+
 func (*Message) Params(string) []string {
 	return nil
 }

pkg/gofr/http/request.go

@@ -88,6 +88,14 @@ func (r *Request) HostName() string {
 	return fmt.Sprintf("%s://%s", proto, r.req.Host)
 }
 
+func (r *Request) Headers() map[string][]string {
+	return r.req.Header
+}
+
+func (r *Request) Header(key string) string {
+	return r.req.Header.Get(key)
+}
+
 // Params returns a slice of strings containing the values associated with the given query parameter key.
 // If the parameter is not present, an empty slice is returned.
 func (r *Request) Params(key string) []string {
@@ -98,10 +106,11 @@ func (r *Request) Params(key string) []string {
 	for _, value := range values {
 		result = append(result, strings.Split(value, ",")...)
 	}
-
+	
 	return result
 }
 
+
 func (r *Request) body() ([]byte, error) {
 	bodyBytes, err := io.ReadAll(r.req.Body)
 	if err != nil {
@@ -179,3 +188,4 @@ func (r *Request) bindBinary(raw any) error {
 
 	return nil
 }
+

pkg/gofr/http/request_test.go

@@ -317,3 +317,33 @@ func TestBind_BinaryOctetStream_NotPointerToByteSlice(t *testing.T) {
 		t.Errorf("Expected error to contain: input is not a pointer to a byte slice: invalid input, got: %v", err)
 	}
 }
+
+func TestHeaders(t *testing.T) {
+	req := httptest.NewRequest(http.MethodGet, "/abc", http.NoBody)
+	req.Header.Add("X-Custom-Header", "value1")
+	req.Header.Add("X-Custom-Header", "value2")
+	req.Header.Add("Content-Type", "application/json")	
+
+	r := NewRequest(req)
+	headers := r.Headers()
+
+	if len(headers) != 2 {
+		t.Errorf("Expected 2 headers, got %d", len(headers))
+	}
+
+	if headers["X-Custom-Header"][0] != "value1" || headers["X-Custom-Header"][1] != "value2" {
+		t.Errorf("X-Custom-Header values do not match expected values")
+	}
+}
+
+func TestHeaders_Header(t *testing.T) {
+	req := httptest.NewRequest(http.MethodGet, "/abc", http.NoBody)
+	req.Header.Add("X-Custom-Header", "value1")
+	req.Header.Add("Content-Type", "application/json")
+
+	r := NewRequest(req)
+	header := r.Header("X-Custom-Header")
+	if header != "value1" {
+		t.Errorf("Expected X-Custom-Header to be 'value1', got '%s'", header)
+	}
+}

pkg/gofr/request.go

@@ -13,5 +13,7 @@ type Request interface {
 	PathParam(string) string
 	Bind(any) error
 	HostName() string
+	Headers() map[string][]string
+	Header(string) string
 	Params(string) []string
 }

pkg/gofr/websocket/websocket.go

@@ -60,6 +60,14 @@ func (*Connection) Param(_ string) string {
 	return "" // Not applicable for WebSocket, can be implemented if needed
 }
 
+func (c *Connection) Headers() map[string][]string {
+	return make(map[string][]string) // Not applicable for WebSocket, can be implemented if needed
+}
+
+func (w *Connection) Header(key string) string {
+	return "" // Not applicable for WebSocket, can be implemented if needed
+}
+
 func (*Connection) PathParam(_ string) string {
 	return "" // Not applicable for WebSocket, can be implemented if needed
 }