X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=nonrtric%2Frapp%2Fransliceassurance.git;a=blobdiff_plain;f=smoversion%2Finternal%2Frestclient%2Fclient.go;fp=smoversion%2Finternal%2Frestclient%2Fclient.go;h=c31fa1d82e025a89cc7d6738e3d96959fb9b90db;hp=0000000000000000000000000000000000000000;hb=5542d26d709c996977d3992c58b273ce83e21e16;hpb=71e113b81dbc68694aec281c85c4472640dc8095

diff --git a/smoversion/internal/restclient/client.go b/smoversion/internal/restclient/client.go
new file mode 100644
index 0000000..c31fa1d
--- /dev/null
+++ b/smoversion/internal/restclient/client.go
@@ -0,0 +1,196 @@
+// -
+//   ========================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"
+	"net/http/httputil"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type RequestError struct {
+	StatusCode int
+	Body       []byte
+}
+
+func (e RequestError) Error() string {
+	return fmt.Sprintf("error response with status: %v and body: %v", e.StatusCode, string(e.Body))
+}
+
+type Client struct {
+	httpClient *http.Client
+	verbose    bool
+}
+
+func New(httpClient *http.Client, verbose bool) *Client {
+	return &Client{
+		httpClient: httpClient,
+		verbose:    verbose,
+	}
+}
+
+func (c *Client) Get(path string, v interface{}, userInfo ...string) error {
+	var req *http.Request
+	var err error
+
+	if len(userInfo) > 1 {
+		req, err = c.newRequest(http.MethodGet, path, nil, userInfo[0], userInfo[1])
+	} else {
+		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{}, userInfo ...string) error {
+	var req *http.Request
+	var err error
+
+	if len(userInfo) > 1 {
+		req, err = c.newRequest(http.MethodPost, path, payload, userInfo[0], userInfo[1])
+	} else {
+		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) Put(path string, payload interface{}, v interface{}, userName string, password string) error {
+	req, err := c.newRequest(http.MethodPut, path, payload, userName, password)
+	if err != nil {
+		return fmt.Errorf("failed to create PUT request: %w", err)
+	}
+
+	if err := c.doRequest(req, v); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *Client) newRequest(method, path string, payload interface{}, userInfo ...string) (*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 len(userInfo) > 0 {
+		req.SetBasicAuth(userInfo[0], userInfo[1])
+	}
+
+	if reqBody != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
+
+	if c.verbose {
+		if reqDump, error := httputil.DumpRequest(req, true); error != nil {
+			fmt.Println(err)
+		} else {
+			fmt.Println(string(reqDump))
+		}
+	}
+
+	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())
+	}
+	log.Debugf("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 c.verbose {
+		if responseDump, error := httputil.DumpResponse(resp, true); error != nil {
+			fmt.Println(err)
+		} else {
+			fmt.Println(string(responseDump))
+		}
+	}
+
+	if resp.StatusCode >= http.StatusOK && resp.StatusCode <= 299 {
+		return resp, nil
+	}
+
+	defer resp.Body.Close()
+	responseData, _ := io.ReadAll(resp.Body)
+
+	putError := RequestError{
+		StatusCode: resp.StatusCode,
+		Body:       responseData,
+	}
+
+	return resp, putError
+}