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client.go
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// Copyright © 2017 Fermin Silva <[email protected]>
// 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.
package api
import (
"fmt"
"io/ioutil"
"net/url"
"path"
)
var (
defaultHeaders = map[string]string{
"Content-type": "application/json",
}
)
type Client struct {
host string
httpClient *signedHTTPClient
}
func NewAPIClient(host, accessKey, accessSecret string) (*Client, error) {
if host == "" {
return nil, fmt.Errorf("API Host cannot be empty")
}
if accessKey == "" {
return nil, fmt.Errorf("API Access key cannot be empty")
}
if accessSecret == "" {
return nil, fmt.Errorf("API Access secret cannot be empty")
}
u, err := url.Parse(host)
if err != nil {
return nil, err
}
u.Scheme = "https"
u.Path = path.Join(u.Path, "api")
return &Client{
host: u.String(),
httpClient: NewSignedHTTPClient(accessKey, accessSecret, 10), //default 10 secs timeout
}, nil
}
func (c *Client) GetBackupKeys() (body []byte, err error) {
resp, err := c.httpClient.SignedGet(c.host+"/backups/keys", defaultHeaders)
if err != nil {
return
}
defer resp.Body.Close()
body, err = ioutil.ReadAll(resp.Body)
if resp.StatusCode/100 != 2 {
err = fmt.Errorf("Server responded HTTP %d: %s", resp.StatusCode, string(body))
}
return
}
func (c *Client) String() string {
return fmt.Sprintf("Host: %s, Access Key: %s, Secret Key %s", c.host,
c.httpClient.AccessKey, c.httpClient.SecretKey)
}
func wrap(context string, err error) error {
if err == nil {
return nil
}
return fmt.Errorf("%s, %s", err, context)
}