94 lines
2.2 KiB
Go
94 lines
2.2 KiB
Go
package rest
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import (
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"fmt"
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"github.com/hashicorp/go-cleanhttp"
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"github.com/hashicorp/go-retryablehttp"
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"io/ioutil"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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type Client interface {
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Get(url string) (*http.Response, error)
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Post(url string, contentType string, body string) error
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GetBody(url string) (http.Header, string, error)
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PostForm(url string, formData url.Values) error
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}
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type HttpClient struct {
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}
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var (
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// do not use retryablehttp default impl - inject own logger and retry policies
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jammingHttp = &retryablehttp.Client{
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HTTPClient: cleanhttp.DefaultPooledClient(),
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Logger: &zeroLogWrapper{},
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RetryWaitMin: 1 * time.Second,
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RetryWaitMax: 30 * time.Second,
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RetryMax: 5,
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CheckRetry: retryablehttp.DefaultRetryPolicy,
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Backoff: retryablehttp.DefaultBackoff,
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}
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)
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func (client *HttpClient) PostForm(url string, formData url.Values) error {
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resp, err := jammingHttp.PostForm(url, formData)
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if err != nil {
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return err
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}
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if !isStatusOk(resp) {
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return fmt.Errorf("POST Form to %s: Status code is not OK (%d)", url, resp.StatusCode)
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}
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return nil
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}
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func (client *HttpClient) Post(url string, contenType string, body string) error {
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resp, err := jammingHttp.Post(url, contenType, strings.NewReader(body))
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if err != nil {
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return err
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}
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if !isStatusOk(resp) {
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return fmt.Errorf("POST to %s: Status code is not OK (%d)", url, resp.StatusCode)
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}
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return nil
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}
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// something like this? https://freshman.tech/snippets/go/http-response-to-string/
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func (client *HttpClient) GetBody(url string) (http.Header, string, error) {
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resp, geterr := client.Get(url)
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if geterr != nil {
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return nil, "", geterr
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}
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body, err := ReadBodyFromResponse(resp)
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if err != nil {
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return nil, "", err
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}
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return resp.Header, body, nil
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}
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func ReadBodyFromResponse(resp *http.Response) (string, error) {
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if !isStatusOk(resp) {
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return "", fmt.Errorf("Status code is not OK (%d)", resp.StatusCode)
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}
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body, readerr := ioutil.ReadAll(resp.Body)
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defer resp.Body.Close()
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if readerr != nil {
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return "", readerr
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}
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return string(body), nil
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}
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func isStatusOk(resp *http.Response) bool {
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return resp.StatusCode >= 200 && resp.StatusCode <= 299
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}
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func (client *HttpClient) Get(url string) (*http.Response, error) {
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return jammingHttp.Get(url)
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}
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