init for restful explorer service

services/explorer/rest.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+
+	"github.com/gorilla/mux"
+)
+
+// ExplorerService is the struct for explorer service.
+type ExplorerService struct {
+}
+
+// Init is to do init for ExplorerService.
+func (es *ExplorerService) Init() {
+
+}
+
+// ParentHash  *common.Hash    `json:"parentHash"       gencodec:"required"`
+// Coinbase    *common.Address `json:"miner"            gencodec:"required"`
+// Root        *common.Hash    `json:"stateRoot"        gencodec:"required"`
+
+// Person is fake struct for testing.
+type Person struct {
+	ID        string   `json:"id,omitempty"`
+	Firstname string   `json:"firstname,omitempty"`
+	Lastname  string   `json:"lastname,omitempty"`
+	Address   *Address `json:"address,omitempty"`
+}
+
+// Address is fake struct for testing.
+type Address struct {
+	City  string `json:"city,omitempty"`
+	State string `json:"state,omitempty"`
+}
+
+var people []Person
+
+// GetPersonEndpoint is the specific person end point.
+func GetPersonEndpoint(w http.ResponseWriter, r *http.Request) {
+	params := mux.Vars(r)
+	for _, item := range people {
+		if item.ID == params["id"] {
+			json.NewEncoder(w).Encode(item)
+			return
+		}
+	}
+	json.NewEncoder(w).Encode(&Person{})
+}
+
+// GetPeopleEndpoint is the people end point.
+func GetPeopleEndpoint(w http.ResponseWriter, r *http.Request) {
+	json.NewEncoder(w).Encode(people)
+}
+
+// CreatePersonEndpoint is post people/{id} end point.
+func CreatePersonEndpoint(w http.ResponseWriter, r *http.Request) {
+	params := mux.Vars(r)
+	var person Person
+	_ = json.NewDecoder(r.Body).Decode(&person)
+	person.ID = params["id"]
+	people = append(people, person)
+	json.NewEncoder(w).Encode(people)
+}
+
+// DeletePersonEndpoint is delete people/{id} end point.
+func DeletePersonEndpoint(w http.ResponseWriter, r *http.Request) {
+	params := mux.Vars(r)
+	for index, item := range people {
+		if item.ID == params["id"] {
+			people = append(people[:index], people[index+1:]...)
+			break
+		}
+		json.NewEncoder(w).Encode(people)
+	}
+}
+
+func main() {
+	router := mux.NewRouter()
+	people = append(people, Person{ID: "1", Firstname: "John", Lastname: "Doe", Address: &Address{City: "City X", State: "State X"}})
+	people = append(people, Person{ID: "2", Firstname: "Koko", Lastname: "Doe", Address: &Address{City: "City Z", State: "State Y"}})
+	router.HandleFunc("/people", GetPeopleEndpoint).Methods("GET")
+	router.HandleFunc("/people/{id}", GetPersonEndpoint).Methods("GET")
+	router.HandleFunc("/people/{id}", CreatePersonEndpoint).Methods("POST")
+	router.HandleFunc("/people/{id}", DeletePersonEndpoint).Methods("DELETE")
+	log.Fatal(http.ListenAndServe(":8000", router))
+}