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50 lines
1.4 KiB
50 lines
1.4 KiB
package middleware
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import (
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"context"
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"github.com/aws/smithy-go/middleware"
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smithyhttp "github.com/aws/smithy-go/transport/http"
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)
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// AddRequestIDRetrieverMiddleware adds request id retriever middleware
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func AddRequestIDRetrieverMiddleware(stack *middleware.Stack) error {
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// add error wrapper middleware before operation deserializers so that it can wrap the error response
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// returned by operation deserializers
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return stack.Deserialize.Insert(&requestIDRetriever{}, "OperationDeserializer", middleware.Before)
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}
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type requestIDRetriever struct {
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}
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// ID returns the middleware identifier
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func (m *requestIDRetriever) ID() string {
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return "RequestIDRetriever"
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}
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func (m *requestIDRetriever) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
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out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
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) {
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out, metadata, err = next.HandleDeserialize(ctx, in)
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resp, ok := out.RawResponse.(*smithyhttp.Response)
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if !ok {
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// No raw response to wrap with.
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return out, metadata, err
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}
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// Different header which can map to request id
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requestIDHeaderList := []string{"X-Amzn-Requestid", "X-Amz-RequestId"}
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for _, h := range requestIDHeaderList {
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// check for headers known to contain Request id
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if v := resp.Header.Get(h); len(v) != 0 {
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// set reqID on metadata for successful responses.
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SetRequestIDMetadata(&metadata, v)
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break
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}
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}
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return out, metadata, err
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}
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