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fitbit.go
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fitbit.go
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package fitbit
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"strings"
)
const (
defaultBaseUrl = "https://api.fitbit.com/1/"
userAgent = "go-fitbit"
)
type Client struct {
client *http.Client
BaseURL *url.URL
UserAgent string
HeartRate *HeartRateService
Sleep *SleepService
Activity *ActivityService
Body *BodyService
Food *FoodService
User *UserService
}
type service struct {
client *Client
}
func NewClient(httpClient *http.Client) *Client {
if httpClient == nil {
httpClient = http.DefaultClient
}
baseUrl, _ := url.Parse(defaultBaseUrl)
c := &Client{client: httpClient, BaseURL: baseUrl, UserAgent: userAgent}
return c
}
func (c *Client) NewRequest(method, urlStr string, body interface{}) (*http.Request, error) {
if !strings.HasSuffix(c.BaseURL.Path, "/") {
return nil, fmt.Errorf("BaseURL must have a trailing slash, but %q does not", c.BaseURL)
}
u, err := c.BaseURL.Parse(urlStr)
if err != nil {
return nil, err
}
var buf io.ReadWriter
if body != nil {
buf = new(bytes.Buffer)
enc := json.NewEncoder(buf)
enc.SetEscapeHTML(false)
err := enc.Encode(body)
if err != nil {
return nil, err
}
}
req, err := http.NewRequest(method, u.String(), buf)
if err != nil {
return nil, err
}
if body != nil {
req.Header.Set("Content-Type", "application/json")
}
if c.UserAgent != "" {
req.Header.Set("User-Agent", c.UserAgent)
}
return req, nil
}
func (c *Client) Do(ctx context.Context, req *http.Request, v interface{}) (*Response, error) {
req = withContext(ctx, req)
// rateLimitCategory := category(req.URL.Path)
// // If we've hit rate limit, don't make further requests before Reset time.
// if err := c.checkRateLimitBeforeDo(req, rateLimitCategory); err != nil {
// return &Response{
// Response: err.Response,
// Rate: err.Rate,
// }, err
// }
resp, err := c.client.Do(req)
if err != nil {
// If we got an error, and the context has been canceled,
// the context's error is probably more useful.
select {
case <-ctx.Done():
return nil, ctx.Err()
default:
}
// If the error type is *url.Error, sanitize its URL before returning.
if e, ok := err.(*url.Error); ok {
if url, err := url.Parse(e.URL); err == nil {
e.URL = url.String()
return nil, e
}
}
return nil, err
}
defer resp.Body.Close()
response := newResponse(resp)
// c.rateMu.Lock()
// c.rateLimits[rateLimitCategory] = response.Rate
// c.rateMu.Unlock()
// err = CheckResponse(resp)
// if err != nil {
// // Even though there was an error, we still return the response
// // in case the caller wants to inspect it further.
// // However, if the error is AcceptedError, decode it below before
// // returning from this function and closing the response body.
// if _, ok := err.(*AcceptedError); !ok {
// return response, err
// }
// }
if v != nil {
if w, ok := v.(io.Writer); ok {
io.Copy(w, resp.Body)
} else {
decErr := json.NewDecoder(resp.Body).Decode(v)
if decErr == io.EOF {
decErr = nil // ignore EOF errors caused by empty response body
}
if decErr != nil {
err = decErr
}
}
}
return response, err
}