Source File
	readerfactory.go

Belonging Package
	github.com/grpc-ecosystem/grpc-gateway/v2/utilities

package utilities

import (
	"bytes"
	"io"
)

// IOReaderFactory takes in an io.Reader and returns a function that will allow you to create a new reader that begins
// at the start of the stream
func IOReaderFactory(r io.Reader) (func() io.Reader, error) {
	b, err := io.ReadAll(r)
	if err != nil {
		return nil, err
	}

	return func() io.Reader {
		return bytes.NewReader(b)
	}, nil
}

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