118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
package giphy
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/http"
|
|
"net/url"
|
|
)
|
|
|
|
// DefaultClient is the default Giphy API client
|
|
var DefaultClient = NewClient()
|
|
|
|
// PublicBetaKey is the public beta key for the Giphy API
|
|
var PublicBetaKey = "dc6zaTOxFJmzC"
|
|
|
|
// A Client communicates with the Giphy API.
|
|
type Client struct {
|
|
// APIKey is the key used for requests to the Giphy API
|
|
APIKey string
|
|
|
|
// Limit is the limit used for requests to the Giphy API
|
|
Limit int
|
|
|
|
// Rating is the rating used for requests to the Giphy API
|
|
Rating string
|
|
|
|
// BaseURL is the base url for Giphy API.
|
|
BaseURL *url.URL
|
|
|
|
// BasePath is the base path for the gifs endpoints
|
|
BasePath string
|
|
|
|
// User agent used for HTTP requests to Giphy API.
|
|
UserAgent string
|
|
|
|
// HTTP client used to communicate with the Giphy API.
|
|
httpClient *http.Client
|
|
}
|
|
|
|
// NewClient returns a new Giphy API client.
|
|
// If no *http.Client were provided then http.DefaultClient is used.
|
|
func NewClient(httpClients ...*http.Client) *Client {
|
|
var httpClient *http.Client
|
|
|
|
if len(httpClients) > 0 && httpClients[0] != nil {
|
|
httpClient = httpClients[0]
|
|
} else {
|
|
cloned := *http.DefaultClient
|
|
httpClient = &cloned
|
|
}
|
|
|
|
c := &Client{
|
|
APIKey: Env("GIPHY_API_KEY", PublicBetaKey),
|
|
Rating: Env("GIPHY_RATING", "g"),
|
|
Limit: EnvInt("GIPHY_LIMIT", 10),
|
|
BaseURL: &url.URL{
|
|
Scheme: Env("GIPHY_BASE_URL_SCHEME", "https"),
|
|
Host: Env("GIPHY_BASE_URL_HOST", "api.giphy.com"),
|
|
},
|
|
BasePath: Env("GIPHY_BASE_PATH", "/v1"),
|
|
UserAgent: Env("GIPHY_USER_AGENT", "giphy.go"),
|
|
httpClient: httpClient,
|
|
}
|
|
|
|
return c
|
|
}
|
|
|
|
// NewRequest creates an API request.
|
|
func (c *Client) NewRequest(s string) (*http.Request, error) {
|
|
rel, err := url.Parse(c.BasePath + s)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
q := rel.Query()
|
|
q.Set("api_key", c.APIKey)
|
|
q.Set("rating", c.Rating)
|
|
rel.RawQuery = q.Encode()
|
|
|
|
u := c.BaseURL.ResolveReference(rel)
|
|
|
|
if EnvBool("GIPHY_VERBOSE", false) {
|
|
fmt.Println("giphy: GET", u.String())
|
|
}
|
|
|
|
req, err := http.NewRequest("GET", u.String(), nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
req.Header.Add("User-Agent", c.UserAgent)
|
|
return req, nil
|
|
}
|
|
|
|
// Do sends an API request and returns the API response. The API response is
|
|
// decoded and stored in the value pointed to by v, or returned as an error if
|
|
// an API error has occurred.
|
|
func (c *Client) Do(req *http.Request, v interface{}) (*http.Response, error) {
|
|
// Make sure to close the connection after replying to this request
|
|
req.Close = true
|
|
|
|
resp, err := c.httpClient.Do(req)
|
|
if err != nil {
|
|
return resp, err
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
if v != nil {
|
|
err = json.NewDecoder(resp.Body).Decode(v)
|
|
}
|
|
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error reading response from %s %s: %s", req.Method, req.URL.RequestURI(), err)
|
|
}
|
|
|
|
return resp, nil
|
|
}
|