Struct ChangeTracking 

pub struct ChangeTracking {
    pub previous_scrape_at: Option<String>,
    pub change_status: String,
    pub visibility: String,
    pub diff: Option<Value>,
    pub json: Option<Value>,
    pub pagesift: Option<Value>,
}

Firecrawl 的 changeTracking 结果（格式 {"type": "changeTracking", "modes": [...], "tag": ...}）。 和上一次抓取同一 URL（同一 tag）的正文 Markdown 比较。

Fields

previous_scrape_at: Option<String>

上一次抓取的时间；第一次抓取时是 null。

change_status: String

new、same、changed、removed。

visibility: String

visible（通过链接或 sitemap 发现）或 hidden。pagesift 不从历史里发现页面，总是 visible。

diff: Option<Value>

git-diff 模式：{"text": 统一格式文本, "json": parse-diff 结构}，只在 changed 时给。

json: Option<Value>

json 模式：按 schema 提取前后两版，变了的字段给出 {"previous", "current"}。

pagesift: Option<Value>

pagesift 扩展：块级 diff 的结论，区分噪声变化（日期、计数等）和实质变化。

Trait Implementations

impl Clone for ChangeTracking

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChangeTracking

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ChangeTracking

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ChangeTracking

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ChangeTracking

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ChangeTracking