Struct AppendReducer 

pub struct AppendReducer;

Append reducer - appends the update to a list

If the current value doesn’t exist or isn’t an array, creates a new array. The update value is appended to the array.

Example

// Before: { "messages": ["hello"] }
// Update: { "messages": "world" }
// After:  { "messages": ["hello", "world"] }

Trait Implementations

impl Clone for AppendReducer

fn clone(&self) -> AppendReducer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AppendReducer

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

Formats the value using the given formatter.

impl Default for AppendReducer

fn default() -> AppendReducer

Returns the “default value” for a type.

impl Reducer for AppendReducer

fn reduce<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, current: Option<&'life1 Value>, update: &'life2 Value, ) -> Pin<Box<dyn Future<Output = Result<Value, AgentError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, AppendReducer: 'async_trait,

Reduce the current value with the update value

fn name(&self) -> &str

Returns the name of this reducer

fn reducer_type(&self) -> ReducerType

Returns the type of this reducer