47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package http
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import (
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"fmt"
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"net/http"
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"net/http/httputil"
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"os"
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)
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// DumpTransport implements the `net/http.RoundTripper` interface wrapping
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// another Roundtripper dumping to stdout both the requests and the responses
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// that it sees passing through.
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//
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type DumpTransport struct {
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R http.RoundTripper
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}
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// NewDumpTransport instantiates a new DumpTransport.
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//
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func NewDumpTransport(rt http.RoundTripper) *DumpTransport {
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return &DumpTransport{
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R: rt,
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}
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}
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// RoundTrip implements the functionality of dumping http requests and
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// responses to `stdout` for each HTTP transaction that passes through it.
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//
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// It does so by first dumping the request, then passing that down to the
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// wrapped roundtripper, and then from the response it sees, dumping it too.
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//
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func (d *DumpTransport) RoundTrip(h *http.Request) (*http.Response, error) {
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requestDump, _ := httputil.DumpRequestOut(h, true)
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fmt.Fprintln(os.Stderr, string(requestDump))
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resp, err := d.R.RoundTrip(h)
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if err != nil {
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return nil, err
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}
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responseDump, _ := httputil.DumpResponse(resp, true)
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fmt.Fprintln(os.Stderr, string(responseDump))
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return resp, err
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}
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