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47 lines
963 B
Go
47 lines
963 B
Go
package main
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import (
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"encoding/json"
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"log"
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"mime"
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"net/http"
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"strconv"
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"git.phc.dm.unipi.it/phc/drone-example/foo"
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)
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func main() {
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r := http.NewServeMux()
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r.HandleFunc("/foo", func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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aStr := r.URL.Query().Get("a")
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bStr := r.URL.Query().Get("b")
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a, err := strconv.Atoi(aStr)
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if err != nil {
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http.Error(w, `the query param "a" must be an integer`, http.StatusUnprocessableEntity)
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return
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}
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b, err := strconv.Atoi(bStr)
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if err != nil {
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http.Error(w, `the query param "b" must be an integer`, http.StatusUnprocessableEntity)
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return
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}
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result := foo.Sum(a, b)
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w.Header().Set("Content-Type", mime.TypeByExtension(".json"))
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if err := json.NewEncoder(w).Encode(result); err != nil {
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log.Fatal(err)
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return
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}
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})
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log.Fatal(http.ListenAndServe(":5000", r))
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}
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