LamerAlert/config/web.go

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2019-12-24 12:20:27 +00:00
package config
import (
"encoding/json"
"net/http"
"github.com/gorilla/mux"
"github.com/rs/zerolog/log"
)
func (c *Config) setup(r *mux.Router) {
r.HandleFunc("/{key}", c.deleteValue).Methods(http.MethodDelete)
r.HandleFunc("/{key}", c.getValue).Methods(http.MethodGet)
r.HandleFunc("/", c.getConfigValues).Methods(http.MethodGet)
r.HandleFunc("/", c.postConfigValue).Methods(http.MethodPost)
}
func (c *Config) getConfigValues(w http.ResponseWriter, r *http.Request) {
log.Debug().Msg("getConfigValues")
vals, err := c.getAll()
if err != nil {
http.Error(w, mkJSONError(err.Error()), http.StatusInternalServerError)
}
json.NewEncoder(w).Encode(vals)
}
func (c *Config) postConfigValue(w http.ResponseWriter, r *http.Request) {
log.Debug().Msg("postConfigValues")
configPost := configValue{}
err := json.NewDecoder(r.Body).Decode(&configPost)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
}
c.set(configPost.Key, configPost)
resp := struct {
Status string `json:"status"`
}{"success"}
log.Debug().Msgf("post success, returning struct %v", resp)
err = json.NewEncoder(w).Encode(resp)
if err != nil {
http.Error(w, mkJSONError(err.Error()), http.StatusInternalServerError)
}
}
func (c *Config) deleteValue(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
log.Debug().Msgf("deleteValue %s", vars["key"])
err := c.delete(vars["key"])
if err != nil {
http.Error(w, mkJSONError(err.Error()), http.StatusInternalServerError)
}
http.Error(w, "", http.StatusNoContent)
}
func (c *Config) getValue(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
log.Debug().Msgf("getValue %s", vars["key"])
v, err := c.get(vars["key"])
if err != nil {
http.Error(w, mkJSONError(err.Error()), http.StatusNotFound)
return
}
json.NewEncoder(w).Encode(v)
}
func mkJSONError(msg string) string {
j, _ := json.Marshal(struct {
Error string `json:"error"`
}{msg})
return string(j)
}