/
utils.go
47 lines (40 loc) · 1.29 KB
/
utils.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// Copyright 2020 Coinbase, Inc.
//
// 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 results
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
// JSONFetch makes a GET request to the URL and unmarshal
// the response into output.
func JSONFetch(url string, output interface{}) error {
resp, err := http.Get(url) // #nosec
if err != nil {
return fmt.Errorf("unable to fetch url %s: %w", url, err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("unable to read body: %w", err)
}
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("received %d status with body %s", resp.StatusCode, string(body))
}
if err := json.Unmarshal(body, output); err != nil {
return fmt.Errorf("unable to unmarshal: %w", err)
}
return nil
}