Module Params 

Positional and named scalar extractors for Parameters: Value arguments in CreateEffectForRequest domain handlers. Parameters is a single serde_json::Value that may be a JSON array (positional) or object (named). The str_obj_or_pos helper handles the 7 sites that accept both shapes.

Functions

array_unwrap

Unwrap one level of outer array: [payload] → payload, else identity. Handles callers that always wrap in an array vs those that send the value directly.

bool_at

bool_at_true

ensure_array

Ensure the value is a JSON array; wraps non-arrays in [value].

i64_at

i64_at_or

obj_bool

obj_f64

obj_str

obj_val

str_at

str_obj_or_pos

string_at

string_at_or

strip_file_uri

Strip a leading file:// or file:/// scheme. Handles the file://localhost/... form by removing the host segment.

u64_at

u64_at_or

uri_from_params

Extract a URI parameter that may arrive as [uri], {uri:…}, or bare.

val_at