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67 lines
2.7 KiB
67 lines
2.7 KiB
// Package endpoints provides the types and functionality for defining regions
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// and endpoints, as well as querying those definitions.
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//
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// The SDK's Regions and Endpoints metadata is code generated into the endpoints
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// package, and is accessible via the DefaultResolver function. This function
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// returns a endpoint Resolver will search the metadata and build an associated
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// endpoint if one is found. The default resolver will search all partitions
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// known by the SDK. e.g AWS Standard (aws), AWS China (aws-cn), and
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// AWS GovCloud (US) (aws-us-gov).
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// .
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//
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// Enumerating Regions and Endpoint Metadata
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//
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// Casting the Resolver returned by DefaultResolver to a EnumPartitions interface
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// will allow you to get access to the list of underlying Partitions with the
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// Partitions method. This is helpful if you want to limit the SDK's endpoint
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// resolving to a single partition, or enumerate regions, services, and endpoints
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// in the partition.
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//
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// resolver := endpoints.DefaultResolver()
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// partitions := resolver.(endpoints.EnumPartitions).Partitions()
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//
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// for _, p := range partitions {
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// fmt.Println("Regions for", p.ID())
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// for id, _ := range p.Regions() {
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// fmt.Println("*", id)
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// }
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//
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// fmt.Println("Services for", p.ID())
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// for id, _ := range p.Services() {
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// fmt.Println("*", id)
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// }
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// }
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//
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// Using Custom Endpoints
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//
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// The endpoints package also gives you the ability to use your own logic how
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// endpoints are resolved. This is a great way to define a custom endpoint
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// for select services, without passing that logic down through your code.
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//
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// If a type implements the Resolver interface it can be used to resolve
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// endpoints. To use this with the SDK's Session and Config set the value
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// of the type to the EndpointsResolver field of aws.Config when initializing
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// the session, or service client.
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//
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// In addition the ResolverFunc is a wrapper for a func matching the signature
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// of Resolver.EndpointFor, converting it to a type that satisfies the
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// Resolver interface.
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//
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//
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// myCustomResolver := func(service, region string, optFns ...func(*endpoints.Options)) (endpoints.ResolvedEndpoint, error) {
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// if service == endpoints.S3ServiceID {
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// return endpoints.ResolvedEndpoint{
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// URL: "s3.custom.endpoint.com",
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// SigningRegion: "custom-signing-region",
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// }, nil
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// }
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//
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// return endpoints.DefaultResolver().EndpointFor(service, region, optFns...)
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// }
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//
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// sess := session.Must(session.NewSession(&aws.Config{
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// Region: aws.String("us-west-2"),
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// EndpointResolver: endpoints.ResolverFunc(myCustomResolver),
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// }))
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package endpoints
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