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main.go
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main.go
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package main
import (
"encoding/json"
"log"
"net/http"
"strconv"
)
func getQueryParams(req *http.Request) (string, int, int, bool) {
termArr, ok := req.URL.Query()["q"]
if !ok {
return "", 0, 0, false
}
term := termArr[0]
fromArr, ok := req.URL.Query()["from"]
if !ok {
return "", 0, 0, false
}
fromStr := fromArr[0]
from, err := strconv.Atoi(fromStr)
if err != nil {
return "", 0, 0, false
}
sizeArr, ok := req.URL.Query()["size"]
if !ok {
return "", 0, 0, false
}
sizeStr := sizeArr[0]
size, err := strconv.Atoi(sizeStr)
if err != nil {
return "", 0, 0, false
}
return term, from, size, true
}
func main() {
mux := http.NewServeMux()
mux.HandleFunc("/populate", func(w http.ResponseWriter, req *http.Request) {
numberArr, ok := req.URL.Query()["number"]
if !ok {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte("Attach proper parameters"))
return
}
numberStr := numberArr[0]
number, err := strconv.Atoi(numberStr)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte("Attach proper parameters"))
return
}
err = Populate(number)
if err != nil || !ok {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(err.Error()))
return
}
})
mux.HandleFunc("/search", func(w http.ResponseWriter, req *http.Request) {
term, from, size, ok := getQueryParams(req)
if !ok {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte("Attach proper parameters"))
return
}
res, err := Search(term, from, size)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte("Error searching"))
return
}
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(res)
})
log.Fatal(http.ListenAndServe(":8000", mux))
}