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add await header #78

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4 changes: 4 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,10 @@ If your API spec is loaded from a remote URL, you can live-reload it by hitting

A simple endpoint which returns status code `200` is available at `/__health`. This endpoint successfully returns `200` even if `--validate-server` is turned on, and the endpoint is being accessed from a non-validated host.

### Response delay

To set the response delay time, add the header "await". A format value is a standard Goland duration in string representation (e.g. "300ms").

## Contributing

Contributions are very welcome. Please open a tracking issue or pull request and we can work to get things merged in.
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12 changes: 12 additions & 0 deletions apisprout.go
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Expand Up @@ -423,6 +423,18 @@ func mapContainsKey(dict map[string]string, key string) bool {

var handler = func(rr *RefreshableRouter) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {

customAwait := req.Header.Get("await")
if customAwait != "" {
dur, err := time.ParseDuration(customAwait)
if err != nil {
log.Printf("ERROR: passed incorrect duration %s in await header", customAwait)
w.WriteHeader(http.StatusBadRequest)
return
}
time.Sleep(dur)
}

if !viper.GetBool("disable-cors") {
corsOrigin := req.Header.Get("Origin")
if corsOrigin == "" {
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