Struct FetchParams 

pub struct FetchParams {
    pub url: String,
    pub method: String,
    pub headers: FxHashMap<String, String>,
    pub body: Option<String>,
    pub json: Option<Value>,
    pub timeout: Option<u64>,
    pub retry: Option<RetryConfig>,
    pub follow_redirects: Option<bool>,
    pub response: Option<String>,
    pub extract: Option<String>,
    pub selector: Option<String>,
}

Fetch action - HTTP request

JSON Body

• json: { ... } — Auto-serializes to JSON and sets Content-Type: application/json
• Mutually exclusive with body (json takes precedence)

Redirect Control

• follow_redirects: true (default) — Follows HTTP redirects up to 5 hops
• follow_redirects: false — Disables redirect following, returns 3xx response

Fields

url: String

method: String

headers: FxHashMap<String, String>

body: Option<String>

json: Option<Value>

JSON body to auto-serialize If provided, serializes to string and sets Content-Type: application/json Takes precedence over body if both are specified

timeout: Option<u64>

Request timeout in seconds (matches JSON schema)

retry: Option<RetryConfig>

Optional retry configuration for failed requests

follow_redirects: Option<bool>

Whether to follow HTTP redirects Defaults to true if not specified

response: Option<String>

Response mode: “full” (status + headers + body JSON) or “binary” (CAS store)

extract: Option<String>

Extraction mode: markdown, text, selector, metadata, links, jsonpath

selector: Option<String>

CSS selector or JSONPath expression (used with extract: selector, text, jsonpath)

Implementations

impl FetchParams

pub fn validate(&self) -> Result<(), NikaError>

Validate fetch parameters

Errors

Returns an error string if:

• url is empty or whitespace-only
• method is not a valid HTTP method
• timeout is zero

Trait Implementations

impl Clone for FetchParams

fn clone(&self) -> FetchParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FetchParams

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FetchParams

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.