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package customizations
import (
"context"
"fmt"
"github.com/aws/smithy-go/middleware"
"github.com/aws/smithy-go/transport/http"
)
// AddAcceptHeader is the helper function used to add middleware to the stack
func AddAcceptHeader(stack *middleware.Stack) error {
return stack.Build.Add(&acceptHeader{}, middleware.After)
}
type acceptHeader struct{}
// ID returns the middleware ID.
func (*acceptHeader) ID() string {
return "APIGATEWAY:AcceptHeader"
}
// HandleBuild handles the associated build step of middleware stack
func (m *acceptHeader) HandleBuild(
ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*http.Request)
if !ok {
return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
}
// all APIGateway operations must have Accept header set to application/json
const conHeader = "Accept"
req.Header[conHeader] = append(req.Header[conHeader][:0], "application/json")
return next.HandleBuild(ctx, in)
}
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