pkg/http/http.go

/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you 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.
*/
package http

import (
	"bytes"
	"io"
	"net/http"
)

// DruidHTTP interface
type DruidHTTP interface {
	Do(method, url string, body []byte) (*Response, error)
}

// HTTP client
type DruidClient struct {
	HTTPClient *http.Client
	Auth       *Auth
}

func NewHTTPClient(client *http.Client, auth *Auth) DruidHTTP {
	newClient := &DruidClient{
		HTTPClient: client,
		Auth:       auth,
	}

	return newClient
}

// Auth mechanisms supported by Druid control plane to authenticate
// with druid clusters
type Auth struct {
	BasicAuth BasicAuth
}

// BasicAuth
type BasicAuth struct {
	UserName string
	Password string
}

// Response passed to controller
type Response struct {
	ResponseBody string
	StatusCode   int
}

// Do method to be used schema and tenant controller.
func (c *DruidClient) Do(Method, url string, body []byte) (*Response, error) {

	req, err := http.NewRequest(Method, url, bytes.NewBuffer(body))
	if err != nil {
		return nil, err
	}

	if c.Auth.BasicAuth != (BasicAuth{}) {
		req.SetBasicAuth(c.Auth.BasicAuth.UserName, c.Auth.BasicAuth.Password)
	}

	req.Header.Add("Content-Type", "application/json")
	resp, err := c.HTTPClient.Do(req)
	if err != nil {
		return nil, err
	}

	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}

	return &Response{ResponseBody: string(responseBody), StatusCode: resp.StatusCode}, nil
}