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api_op_ListEventSourceMappings.go
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api_op_ListEventSourceMappings.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package lambda
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/service/lambda/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Lists event source mappings. Specify an EventSourceArn to show only event
// source mappings for a single event source.
func (c *Client) ListEventSourceMappings(ctx context.Context, params *ListEventSourceMappingsInput, optFns ...func(*Options)) (*ListEventSourceMappingsOutput, error) {
if params == nil {
params = &ListEventSourceMappingsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListEventSourceMappings", params, optFns, c.addOperationListEventSourceMappingsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListEventSourceMappingsOutput)
out.ResultMetadata = metadata
return out, nil
}
type ListEventSourceMappingsInput struct {
// The Amazon Resource Name (ARN) of the event source.
//
// - Amazon Kinesis – The ARN of the data stream or a stream consumer.
//
// - Amazon DynamoDB Streams – The ARN of the stream.
//
// - Amazon Simple Queue Service – The ARN of the queue.
//
// - Amazon Managed Streaming for Apache Kafka – The ARN of the cluster or the
// ARN of the VPC connection (for [cross-account event source mappings]).
//
// - Amazon MQ – The ARN of the broker.
//
// - Amazon DocumentDB – The ARN of the DocumentDB change stream.
//
// [cross-account event source mappings]: https://docs.aws.amazon.com/lambda/latest/dg/with-msk.html#msk-multi-vpc
EventSourceArn *string
// The name or ARN of the Lambda function.
//
// Name formats
//
// - Function name – MyFunction .
//
// - Function ARN – arn:aws:lambda:us-west-2:123456789012:function:MyFunction .
//
// - Version or Alias ARN –
// arn:aws:lambda:us-west-2:123456789012:function:MyFunction:PROD .
//
// - Partial ARN – 123456789012:function:MyFunction .
//
// The length constraint applies only to the full ARN. If you specify only the
// function name, it's limited to 64 characters in length.
FunctionName *string
// A pagination token returned by a previous call.
Marker *string
// The maximum number of event source mappings to return. Note that
// ListEventSourceMappings returns a maximum of 100 items in each response, even if
// you set the number higher.
MaxItems *int32
noSmithyDocumentSerde
}
type ListEventSourceMappingsOutput struct {
// A list of event source mappings.
EventSourceMappings []types.EventSourceMappingConfiguration
// A pagination token that's returned when the response doesn't contain all event
// source mappings.
NextMarker *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListEventSourceMappingsMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsRestjson1_serializeOpListEventSourceMappings{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListEventSourceMappings{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "ListEventSourceMappings"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = addRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListEventSourceMappings(options.Region), middleware.Before); err != nil {
return err
}
if err = addRecursionDetection(stack); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
if err = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// ListEventSourceMappingsAPIClient is a client that implements the
// ListEventSourceMappings operation.
type ListEventSourceMappingsAPIClient interface {
ListEventSourceMappings(context.Context, *ListEventSourceMappingsInput, ...func(*Options)) (*ListEventSourceMappingsOutput, error)
}
var _ ListEventSourceMappingsAPIClient = (*Client)(nil)
// ListEventSourceMappingsPaginatorOptions is the paginator options for
// ListEventSourceMappings
type ListEventSourceMappingsPaginatorOptions struct {
// The maximum number of event source mappings to return. Note that
// ListEventSourceMappings returns a maximum of 100 items in each response, even if
// you set the number higher.
Limit int32
// Set to true if pagination should stop if the service returns a pagination token
// that matches the most recent token provided to the service.
StopOnDuplicateToken bool
}
// ListEventSourceMappingsPaginator is a paginator for ListEventSourceMappings
type ListEventSourceMappingsPaginator struct {
options ListEventSourceMappingsPaginatorOptions
client ListEventSourceMappingsAPIClient
params *ListEventSourceMappingsInput
nextToken *string
firstPage bool
}
// NewListEventSourceMappingsPaginator returns a new
// ListEventSourceMappingsPaginator
func NewListEventSourceMappingsPaginator(client ListEventSourceMappingsAPIClient, params *ListEventSourceMappingsInput, optFns ...func(*ListEventSourceMappingsPaginatorOptions)) *ListEventSourceMappingsPaginator {
if params == nil {
params = &ListEventSourceMappingsInput{}
}
options := ListEventSourceMappingsPaginatorOptions{}
if params.MaxItems != nil {
options.Limit = *params.MaxItems
}
for _, fn := range optFns {
fn(&options)
}
return &ListEventSourceMappingsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.Marker,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListEventSourceMappingsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListEventSourceMappings page.
func (p *ListEventSourceMappingsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListEventSourceMappingsOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.Marker = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.MaxItems = limit
result, err := p.client.ListEventSourceMappings(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.NextMarker
if p.options.StopOnDuplicateToken &&
prevToken != nil &&
p.nextToken != nil &&
*prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opListEventSourceMappings(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "ListEventSourceMappings",
}
}