Add config set and remove methods to API

Added config set and remove methods to the API.  Smoke tested

api/config.go

@@ -4,6 +4,8 @@ import (
 	"encoding/json"
 	"net/http"
 
+	"fmt"
+
 	"github.com/danesparza/appliance-monitor/data"
 	"github.com/gorilla/mux"
 	"github.com/spf13/viper"
@@ -51,3 +53,54 @@ func GetConfigItem(rw http.ResponseWriter, req *http.Request) {
 	rw.Header().Set("Content-Type", "application/json; charset=utf-8")
 	json.NewEncoder(rw).Encode(response)
 }
+
+// RemoveConfigItem removes a single config item
+func RemoveConfigItem(rw http.ResponseWriter, req *http.Request) {
+
+	//	Get the config datastore:
+	configDB := data.ConfigDB{
+		Database: viper.GetString("datastore.config")}
+
+	//	Get the config name from the request:
+	configName := mux.Vars(req)["name"]
+
+	//	Send the request to the datastore and get a response:
+	err := configDB.Remove(configName)
+	if err != nil {
+		sendErrorResponse(rw, err, http.StatusInternalServerError)
+		return
+	}
+
+	//	Serialize to JSON & return the response:
+	rw.Header().Set("Content-Type", "application/json; charset=utf-8")
+	json.NewEncoder(rw).Encode(fmt.Sprintf("Removed %s", configName))
+}
+
+// SetConfigItem adds or updates a single config item and returns the new item in JSON format
+func SetConfigItem(rw http.ResponseWriter, req *http.Request) {
+	//	req.Body is a ReadCloser -- we need to remember to close it:
+	defer req.Body.Close()
+
+	//	Decode the request if it was a POST:
+	request := data.ConfigItem{}
+	err := json.NewDecoder(req.Body).Decode(&request)
+	if err != nil {
+		sendErrorResponse(rw, err, http.StatusBadRequest)
+		return
+	}
+
+	//	Get the config datastore:
+	configDB := data.ConfigDB{
+		Database: viper.GetString("datastore.config")}
+
+	//	Send the request to the datastore and get a response:
+	response, err := configDB.Set(request)
+	if err != nil {
+		sendErrorResponse(rw, err, http.StatusInternalServerError)
+		return
+	}
+
+	//	Serialize to JSON & return the response:
+	rw.Header().Set("Content-Type", "application/json; charset=utf-8")
+	json.NewEncoder(rw).Encode(response)
+}

cmd/start.go

@@ -66,7 +66,8 @@ func serve(cmd *cobra.Command, args []string) {
 	//	Config
 	Router.HandleFunc("/config", api.GetAllConfig).Methods("GET")
 	Router.HandleFunc("/config/{name}", api.GetConfigItem).Methods("GET")
-	Router.HandleFunc("/config", nil).Methods("POST")
+	Router.HandleFunc("/config", api.SetConfigItem).Methods("POST")
+	Router.HandleFunc("/config/{name}", api.RemoveConfigItem).Methods("DELETE")
 
 	//	System information
 	Router.HandleFunc("/system/state", api.GetCurrentState).Methods("GET")