34 lines
715 B
Go
34 lines
715 B
Go
package main
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import (
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"net/http"
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"strconv"
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)
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func handleFractionOpt(name string, setter func(int)) http.HandlerFunc {
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return func(rw http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodPost {
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http.Error(rw, "only POST allowed", http.StatusMethodNotAllowed)
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return
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}
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if err := r.ParseForm(); err != nil {
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http.Error(rw, err.Error(), http.StatusBadRequest)
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return
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}
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asfr := r.Form.Get("x")
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if len(asfr) == 0 {
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http.Error(rw, "parameter 'x' must be set", http.StatusBadRequest)
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return
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}
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fr, err := strconv.Atoi(asfr)
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if err != nil {
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http.Error(rw, err.Error(), http.StatusBadRequest)
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return
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}
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log.Infof("setting %s to %d", name, fr)
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setter(fr)
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}
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}
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