mirror of
https://github.com/c9s/bbgo.git
synced 2024-11-11 09:33:50 +00:00
112 lines
2.1 KiB
Go
112 lines
2.1 KiB
Go
package v1
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"net/url"
|
|
|
|
"github.com/c9s/requestgen"
|
|
)
|
|
|
|
const baseURL = "https://pro-api.coinmarketcap.com"
|
|
|
|
type RestClient struct {
|
|
BaseURL *url.URL
|
|
Client *http.Client
|
|
|
|
apiKey string
|
|
}
|
|
|
|
func New() *RestClient {
|
|
u, err := url.Parse(baseURL)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
return &RestClient{
|
|
BaseURL: u,
|
|
Client: &http.Client{},
|
|
}
|
|
}
|
|
|
|
func (c *RestClient) Auth(apiKey string) {
|
|
c.apiKey = apiKey
|
|
}
|
|
|
|
func (c *RestClient) NewRequest(ctx context.Context, method string, refURL string, params url.Values, payload interface{}) (*http.Request, error) {
|
|
rel, err := url.Parse(refURL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if params != nil {
|
|
rel.RawQuery = params.Encode()
|
|
}
|
|
|
|
pathURL := c.BaseURL.ResolveReference(rel)
|
|
|
|
body, err := castPayload(payload)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
fmt.Println(pathURL.String())
|
|
|
|
return http.NewRequestWithContext(ctx, method, pathURL.String(), bytes.NewReader(body))
|
|
}
|
|
|
|
func (c *RestClient) SendRequest(req *http.Request) (*requestgen.Response, error) {
|
|
resp, err := c.Client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
response, err := requestgen.NewResponse(resp)
|
|
if err != nil {
|
|
return response, err
|
|
}
|
|
|
|
// Check error, if there is an error, return the ErrorResponse struct type
|
|
if response.IsError() {
|
|
return response, errors.New(string(response.Body))
|
|
}
|
|
|
|
return response, nil
|
|
}
|
|
|
|
func (c *RestClient) NewAuthenticatedRequest(ctx context.Context, method, refURL string, params url.Values, payload interface{}) (*http.Request, error) {
|
|
req, err := c.NewRequest(ctx, method, refURL, params, payload)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
req.Header.Add("Accept", "application/json")
|
|
req.Header.Add("Content-Type", "application/json")
|
|
req.Header.Add("X-CMC_PRO_API_KEY", c.apiKey)
|
|
|
|
return req, nil
|
|
}
|
|
|
|
func castPayload(payload interface{}) ([]byte, error) {
|
|
if payload != nil {
|
|
switch v := payload.(type) {
|
|
case string:
|
|
return []byte(v), nil
|
|
|
|
case []byte:
|
|
return v, nil
|
|
|
|
default:
|
|
body, err := json.Marshal(v)
|
|
return body, err
|
|
}
|
|
}
|
|
|
|
return nil, nil
|
|
}
|