Struct EventSourceMapping 

pub struct EventSourceMapping {

    pub uuid: String,
    pub function_arn: String,
    pub event_source_arn: String,
    pub batch_size: i64,
    pub enabled: bool,
    pub state: String,
    pub last_modified: DateTime<Utc>,
    pub filter_patterns: Vec<String>,
    pub maximum_batching_window_in_seconds: Option<i64>,
    pub starting_position: Option<String>,
    pub starting_position_timestamp: Option<f64>,
    pub parallelization_factor: Option<i64>,
    pub function_response_types: Vec<String>,
    pub kms_key_arn: Option<String>,
    pub metrics_config: Option<Value>,
    pub destination_config: Option<Value>,
    pub maximum_retry_attempts: Option<i64>,
    pub maximum_record_age_in_seconds: Option<i64>,
    pub bisect_batch_on_function_error: Option<bool>,
    pub tumbling_window_in_seconds: Option<i64>,
    pub topics: Vec<String>,
    pub queues: Vec<String>,
}

Fields

uuid: String

function_arn: String

event_source_arn: String

batch_size: i64

enabled: bool

state: String

last_modified: DateTime<Utc>

filter_patterns: Vec<String>

Raw Filters: [{Pattern: "..."}] array as supplied via FilterCriteria. Each pattern is an EventBridge-style JSON pattern matched against the record body — non-matching records are dropped.

maximum_batching_window_in_seconds: Option<i64>

Wait up to N seconds to accumulate batch_size records before invoking. Implemented as a deadline check inside the poller.

starting_position: Option<String>

LATEST, TRIM_HORIZON, or AT_TIMESTAMP. Honored on the first poll for stream sources (Kinesis, DDB Streams).

starting_position_timestamp: Option<f64>

Optional epoch-second timestamp paired with StartingPosition=AT_TIMESTAMP.

parallelization_factor: Option<i64>

Kinesis-only: number of concurrent batch invocations per shard.

function_response_types: Vec<String>

["ReportBatchItemFailures"] to opt into partial-batch failure semantics. Empty / unset = entire batch is retried on error.

kms_key_arn: Option<String>

KMS key for encrypting the filter-criteria document at rest. AWS added this in 2024 for Kafka/Kinesis sources whose filters carry sensitive selectors.

metrics_config: Option<Value>

MetricsConfig.Metrics — set of opted-in CloudWatch metrics (["EventCount"]). Round-tripped only; fakecloud doesn’t yet publish these metrics.

destination_config: Option<Value>

DestinationConfig — OnFailure.Destination arn (and rarely OnSuccess.Destination for self-managed Kafka). Round-tripped.

maximum_retry_attempts: Option<i64>

MaximumRetryAttempts for the source. AWS uses -1 to mean “infinite” so we keep the int rather than a bool.

maximum_record_age_in_seconds: Option<i64>

MaximumRecordAgeInSeconds. -1 = infinite.

bisect_batch_on_function_error: Option<bool>

BisectBatchOnFunctionError — split the batch in half and retry on Lambda invoke failure (Kinesis / DDB streams only).

tumbling_window_in_seconds: Option<i64>

TumblingWindowInSeconds — Kinesis-only batch aggregation window.

topics: Vec<String>

Topics — MSK / self-managed-Kafka topic list.

queues: Vec<String>

Queues — Amazon MQ broker queue list.

Trait Implementations

impl Clone for EventSourceMapping

fn clone(&self) -> EventSourceMapping

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventSourceMapping

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EventSourceMapping

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for EventSourceMapping

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

where __S: Serializer,

Serialize this value into the given Serde serializer.