Initial stub at GetHomeTweets

tweets.go

@@ -1,8 +1,11 @@
 package twitterscraper
 
 import (
+	"bytes"
 	"context"
+	"encoding/json"
 	"fmt"
+	"io"
 	"net/url"
 	"strconv"
 )
@@ -273,3 +276,118 @@ func (s *Scraper) GetTweet(id string) (*Tweet, error) {
 	}
 	return nil, fmt.Errorf("tweet with ID %s not found", id)
 }
+
+type homeEntry struct {
+	EntryId   string `json:"entryId"`
+	SortIndex string `json:"sortIndex"`
+	Content   struct {
+		EntryType   string `json:"entryType"`
+		ItemContent struct {
+			ItemType     string `json:"itemType"`
+			TweetResults struct {
+				Result result `json:"result"`
+			} `json:"tweet_results"`
+		} `json:"itemContent"`
+	} `json:"content"`
+}
+
+// timeline v2 JSON object
+type homeTimeline struct {
+	Data struct {
+		Home struct {
+			HomeTimeline struct {
+				Instructions []struct {
+					Entries []homeEntry `json:"entries"`
+					Type    string      `json:"type"`
+				} `json:"instructions"`
+				Metadata struct {
+					SribeConfig []struct {
+						Page string `json:"page"`
+					} `json:"scribe_config"`
+				} `json:"metadata"`
+			} `json:"home_timeline_urt"`
+		} `json:"home"`
+	} `json:"data"`
+}
+
+func (timeline *homeTimeline) parseTweets() ([]*Tweet, string) {
+	var cursor string
+	var tweets []*Tweet
+	for _, instruction := range timeline.Data.Home.HomeTimeline.Instructions {
+		for _, entry := range instruction.Entries {
+			if entry.Content.ItemContent.TweetResults.Result.Typename == "Tweet" {
+				if tweet := entry.Content.ItemContent.TweetResults.Result.parse(); tweet != nil {
+					tweets = append(tweets, tweet)
+				}
+			}
+		}
+	}
+	return tweets, cursor
+}
+
+// GetHomeTweets returns channel with tweets from home timeline
+func (s *Scraper) GetHomeTweets(ctx context.Context, maxTweetsNbr int) <-chan *TweetResult {
+	return getTweetTimeline(ctx, "", maxTweetsNbr, s.FetchHomeTweets)
+}
+
+// FetchHomeTweets gets tweets from home timline, via the Twitter frontend API.
+func (s *Scraper) FetchHomeTweets(_ string, maxTweetsNbr int, cursor string) ([]*Tweet, string, error) {
+	if maxTweetsNbr > 200 {
+		maxTweetsNbr = 200
+	}
+
+	req, err := s.newRequest("POST", "https://twitter.com/i/api/graphql/MquF6747JmE_NQYdkIH0OQ/HomeLatestTimeline")
+	if err != nil {
+		return nil, "", err
+	}
+
+	variables := map[string]interface{}{
+		"count":                                  maxTweetsNbr,
+		"includePromotedContent":                 true,
+		"withQuickPromoteEligibilityTweetFields": true,
+		"requestContext":                         "launch",
+	}
+	features := map[string]interface{}{
+		"rweb_tipjar_consumption_enabled":                                         false,
+		"responsive_web_graphql_exclude_directive_enabled":                        true,
+		"verified_phone_label_enabled":                                            false,
+		"creator_subscriptions_tweet_preview_api_enabled":                         true,
+		"responsive_web_graphql_timeline_navigation_enabled":                      true,
+		"responsive_web_graphql_skip_user_profile_image_extensions_enabled":       false,
+		"communities_web_enable_tweet_community_results_fetch":                    true,
+		"c9s_tweet_anatomy_moderator_badge_enabled":                               true,
+		"tweetypie_unmention_optimization_enabled":                                true,
+		"responsive_web_edit_tweet_api_enabled":                                   true,
+		"graphql_is_translatable_rweb_tweet_is_translatable_enabled":              true,
+		"view_counts_everywhere_api_enabled":                                      true,
+		"longform_notetweets_consumption_enabled":                                 true,
+		"responsive_web_twitter_article_tweet_consumption_enabled":                true,
+		"tweet_awards_web_tipping_enabled":                                        false,
+		"freedom_of_speech_not_reach_fetch_enabled":                               true,
+		"standardized_nudges_misinfo":                                             true,
+		"tweet_with_visibility_results_prefer_gql_limited_actions_policy_enabled": true,
+		"rweb_video_timestamps_enabled":                                           true,
+		"longform_notetweets_rich_text_read_enabled":                              true,
+		"longform_notetweets_inline_media_enabled":                                true,
+		"responsive_web_enhance_cards_enabled":                                    false,
+	}
+
+	req.Header.Set("content-type", "application/json")
+	body := map[string]interface{}{
+		"variables": variables,
+		"features":  features,
+		"queryId":   "CTOVqej0JBXAZSwkp1US0g",
+	}
+
+	b, _ := json.Marshal(body)
+	req.Body = io.NopCloser(bytes.NewReader(b))
+
+	var timeline homeTimeline
+	err = s.RequestAPI(req, &timeline)
+	if err != nil {
+		return nil, "", err
+	}
+
+	tweets, nextCursor := timeline.parseTweets()
+	return tweets, nextCursor, nil
+}