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Fix go example API #5

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Fix go example API #5

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28 changes: 20 additions & 8 deletions go-stdlib-simple-app/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -45,11 +45,17 @@ func mainHandler(w http.ResponseWriter, r *http.Request) {
}
}

// ioHandler receives requests to path of the form '/io/100ms' and
// ioHandler receives requests to path of the form '/io?delay=100ms' and
// redirects the request to nginx host
func ioHandler(w http.ResponseWriter, r *http.Request) {
// Remove leading '/'
delay := r.URL.Path[1:]
// Read query parameter
query := r.URL.Query()
v, ok := query["delay"]
if !ok {
fmt.Fprintf(w, "Bad Params")
return
}
delay := v[0]
// Time and log handler execution
defer startTimer(fmt.Sprintf("iohandler request with delay %s", delay))()

Expand Down Expand Up @@ -79,20 +85,26 @@ func ioHandler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Request finished!")
}

// cpuHandler receives requests to path of the form '/cpu/8' and loops
// cpuHandler receives requests to path of the form '/cpu?iterations=8' and loops
// that many times before returning
func cpuHandler(w http.ResponseWriter, r *http.Request) {
// Remove leading '/'
param := r.URL.Path[1:]
// Read query parameter
query := r.URL.Query()
v, ok := query["iterations"]
if !ok {
fmt.Fprintf(w, "Bad Params")
return
}
param := v[0]
// Time and log handler execution
defer startTimer(fmt.Sprintf("cpuhandler with iterations %s", param))()

// Cast parameter to integer
iterations, err := strconv.Atoi(param[1:])
iterations, err := strconv.Atoi(param)
if err != nil {
// Cast failed
http.Error(w, "Bad Request", http.StatusBadRequest)
log.Printf("Failed to parse '%s' as integer\n", param[1:])
log.Printf("Failed to parse '%s' as integer\n", param)
return
}

Expand Down