79 lines
1.8 KiB
Go
79 lines
1.8 KiB
Go
package request
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import (
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"encoding/json"
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"net/http"
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"time"
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"github.com/evcc-io/evcc/util"
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)
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// Timeout is the default request timeout used by the Helper
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var Timeout = 10 * time.Second
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// Helper provides utility primitives
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type Helper struct {
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*http.Client
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}
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// NewHelper creates http helper for simplified PUT GET logic
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func NewHelper(log *util.Logger) *Helper {
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r := &Helper{
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Client: &http.Client{
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Timeout: Timeout,
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Transport: NewTripper(log, http.DefaultTransport),
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},
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}
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return r
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}
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// DoBody executes HTTP request and returns the response body
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func (r *Helper) DoBody(req *http.Request) ([]byte, error) {
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resp, err := r.Do(req)
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var body []byte
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if err == nil {
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body, err = ReadBody(resp)
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}
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return body, err
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}
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// GetBody executes HTTP GET request and returns the response body
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func (r *Helper) GetBody(url string) ([]byte, error) {
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resp, err := r.Get(url)
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var body []byte
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if err == nil {
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body, err = ReadBody(resp)
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}
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return body, err
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}
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// decodeJSON reads HTTP response and decodes JSON body if error is nil
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func decodeJSON(resp *http.Response, res interface{}) error {
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if err := ResponseError(resp); err != nil {
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_ = json.NewDecoder(resp.Body).Decode(&res)
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return err
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}
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return json.NewDecoder(resp.Body).Decode(&res)
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}
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// DoJSON executes HTTP request and decodes JSON response. It returns a StatusError on response codes other than HTTP 2xx.
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func (r *Helper) DoJSON(req *http.Request, res interface{}) error {
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resp, err := r.Do(req)
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if err == nil {
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defer resp.Body.Close()
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err = decodeJSON(resp, &res)
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}
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return err
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}
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// GetJSON executes HTTP GET request and decodes JSON response. It returns a StatusError on response codes other than HTTP 2xx.
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func (r *Helper) GetJSON(url string, res interface{}) error {
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resp, err := r.Get(url)
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if err == nil {
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defer resp.Body.Close()
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err = decodeJSON(resp, &res)
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}
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return err
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}
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