github.com/wtfutil/wtf@v0.43.0/modules/subreddit/api.go (about)

     1  package subreddit
     2  
     3  import (
     4  	"crypto/tls"
     5  	"fmt"
     6  	"net/http"
     7  
     8  	"github.com/wtfutil/wtf/utils"
     9  )
    10  
    11  var rootPage = "https://www.reddit.com/r/"
    12  
    13  func GetLinks(subreddit string, sortMode string, topTimePeriod string) ([]Link, error) {
    14  	url := rootPage + subreddit + "/" + sortMode + ".json"
    15  	if sortMode == "top" {
    16  		url = url + "?sort=top&t=" + topTimePeriod
    17  	}
    18  
    19  	request, err := http.NewRequest("GET", url, http.NoBody)
    20  	if err != nil {
    21  		return nil, err
    22  	}
    23  
    24  	request.Header.Set("User-Agent", "wtfutil (https://github.com/wtfutil/wtf)")
    25  
    26  	// See https://www.reddit.com/r/redditdev/comments/t8e8hc/comment/i18yga2/?utm_source=share&utm_medium=web2x&context=3
    27  	client := &http.Client{
    28  		Transport: &http.Transport{
    29  			TLSNextProto: map[string]func(authority string, c *tls.Conn) http.RoundTripper{},
    30  		},
    31  	}
    32  	resp, err := client.Do(request)
    33  
    34  	if err != nil {
    35  		return nil, err
    36  	}
    37  	defer func() { _ = resp.Body.Close() }()
    38  
    39  	if resp.StatusCode > 299 {
    40  		return nil, fmt.Errorf(resp.Status)
    41  	}
    42  	var m RedditDocument
    43  	err = utils.ParseJSON(&m, resp.Body)
    44  
    45  	if err != nil {
    46  		return nil, err
    47  	}
    48  
    49  	if len(m.Data.Children) == 0 {
    50  		return nil, fmt.Errorf("no links")
    51  	}
    52  
    53  	var links []Link
    54  	for _, l := range m.Data.Children {
    55  		links = append(links, l.Data)
    56  	}
    57  	return links, nil
    58  }