--- /dev/null
+// -
+// ========================LICENSE_START=================================
+// O-RAN-SC
+// %%
+// Copyright (C) 2021: Nordix Foundation
+// %%
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ========================LICENSE_END===================================
+//
+
+package restclient
+
+import (
+ "bytes"
+ "encoding/json"
+ "fmt"
+ "io"
+ "net/http"
+)
+
+type Client struct {
+ httpClient *http.Client
+}
+
+func New(httpClient *http.Client) *Client {
+ return &Client{
+ httpClient: httpClient,
+ }
+}
+
+type HTTPClient interface {
+ Get(path string, v interface{}) error
+ Post(path string, payload interface{}, v interface{}) error
+}
+
+func (c *Client) Get(path string, v interface{}) error {
+ req, err := c.newRequest(http.MethodGet, path, nil)
+ if err != nil {
+ return fmt.Errorf("failed to create GET request: %w", err)
+ }
+
+ if err := c.doRequest(req, v); err != nil {
+ return err
+ }
+
+ return nil
+}
+
+func (c *Client) Post(path string, payload interface{}, v interface{}) error {
+ req, err := c.newRequest(http.MethodPost, path, payload)
+ if err != nil {
+ return fmt.Errorf("failed to create POST request: %w", err)
+ }
+
+ if err := c.doRequest(req, v); err != nil {
+ return err
+ }
+
+ return nil
+}
+
+func (c *Client) newRequest(method, path string, payload interface{}) (*http.Request, error) {
+ var reqBody io.Reader
+ if payload != nil {
+ bodyBytes, err := json.Marshal(payload)
+ if err != nil {
+ return nil, fmt.Errorf("failed to marshal request body: %w", err)
+ }
+ reqBody = bytes.NewReader(bodyBytes)
+ }
+
+ req, err := http.NewRequest(method, path, reqBody)
+ if err != nil {
+ return nil, fmt.Errorf("failed to create HTTP request: %w", err)
+ }
+
+ if reqBody != nil {
+ req.Header.Set("Content-Type", "application/json; charset=utf-8")
+ }
+ fmt.Printf("Http Client Request: [%s:%s]\n", req.Method, req.URL)
+ return req, nil
+}
+
+func (c *Client) doRequest(r *http.Request, v interface{}) error {
+ resp, err := c.do(r)
+ if err != nil {
+ return err
+ }
+
+ if resp == nil {
+ return nil
+ }
+ defer resp.Body.Close()
+
+ if v == nil {
+ return nil
+ }
+
+ dec := json.NewDecoder(resp.Body)
+ if err := dec.Decode(v); err != nil {
+ return fmt.Errorf("could not parse response body: %w [%s:%s]", err, r.Method, r.URL.String())
+ }
+ fmt.Printf("Http Client Response: %+v\n", v)
+ return nil
+}
+
+func (c *Client) do(r *http.Request) (*http.Response, error) {
+ resp, err := c.httpClient.Do(r)
+ if err != nil {
+ return nil, fmt.Errorf("failed to make request [%s:%s]: %w", r.Method, r.URL.String(), err)
+ }
+
+ if resp.StatusCode >= http.StatusOK && resp.StatusCode <= 299 {
+ return resp, nil
+ }
+
+ defer resp.Body.Close()
+
+ return resp, fmt.Errorf("failed to do request, %d status code received", resp.StatusCode)
+}