2019-08-09 02:02:05 +03:00
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package tamtam
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import (
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"bytes"
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"encoding/json"
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2021-02-14 13:21:37 +03:00
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"errors"
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2019-08-09 02:02:05 +03:00
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"io"
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"net/http"
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"net/url"
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2019-09-05 22:43:32 +03:00
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"github.com/neonxp/tamtam/schemes"
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2019-08-09 02:02:05 +03:00
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)
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2021-02-14 13:21:37 +03:00
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var (
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errLongPollTimeout = errors.New("timeout")
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)
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2019-08-09 02:02:05 +03:00
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type client struct {
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2019-08-09 17:52:33 +03:00
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key string
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version string
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url *url.URL
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httpClient *http.Client
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2019-08-09 02:02:05 +03:00
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}
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2019-08-09 17:52:33 +03:00
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func newClient(key string, version string, url *url.URL, httpClient *http.Client) *client {
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return &client{key: key, version: version, url: url, httpClient: httpClient}
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2019-08-09 02:02:05 +03:00
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}
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func (cl *client) request(method, path string, query url.Values, body interface{}) (io.ReadCloser, error) {
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j, err := json.Marshal(body)
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if err != nil {
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return nil, err
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}
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return cl.requestReader(method, path, query, bytes.NewReader(j))
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}
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func (cl *client) requestReader(method, path string, query url.Values, body io.Reader) (io.ReadCloser, error) {
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u := *cl.url
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u.Path = path
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query.Set("access_token", cl.key)
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query.Set("v", cl.version)
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u.RawQuery = query.Encode()
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req, err := http.NewRequest(method, u.String(), body)
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if err != nil {
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return nil, err
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}
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2019-08-09 17:52:33 +03:00
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resp, err := cl.httpClient.Do(req)
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2019-08-09 02:02:05 +03:00
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if err != nil {
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2019-09-21 23:11:17 +03:00
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err, ok := err.(*url.Error)
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if ok {
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if err.Timeout() {
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2021-02-14 13:21:37 +03:00
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return nil, errLongPollTimeout
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2019-09-21 23:11:17 +03:00
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}
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}
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2019-08-09 02:02:05 +03:00
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return nil, err
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}
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if resp.StatusCode != http.StatusOK {
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2019-09-05 22:43:32 +03:00
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errObj := new(schemes.Error)
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2019-08-09 02:02:05 +03:00
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err = json.NewDecoder(resp.Body).Decode(errObj)
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if err != nil {
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return nil, err
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}
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2019-09-05 17:23:07 +03:00
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return nil, errObj
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2019-08-09 02:02:05 +03:00
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}
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return resp.Body, err
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}
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