60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package utils
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import (
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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)
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// GetJSON makes an HTTP call to the specified URL and parses the returned JSON into `out`.
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func GetJSON(url string, out interface{}) error {
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resp, err := http.Get(url)
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if err != nil {
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return err
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}
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return ReadJSON(resp, out)
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}
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// ReadJSON reads JSON from http.Response and parses it into `out`
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func ReadJSON(resp *http.Response, out interface{}) error {
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defer resp.Body.Close()
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if resp.StatusCode >= 400 {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return err
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}
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return fmt.Errorf("StatusCode: %d, Body: %s", resp.StatusCode, body)
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}
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if out == nil {
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io.Copy(ioutil.Discard, resp.Body)
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return nil
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}
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decoder := json.NewDecoder(resp.Body)
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return decoder.Decode(out)
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}
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