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transport.go
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transport.go
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package service
import (
"context"
"encoding/json"
om "github.com/bbakla/hands-on-microservices-kubernetes/pkg/object_model"
"github.com/go-kit/kit/endpoint"
"net/http"
)
type registerRequest struct {
Username string `json:"username"`
Email string `json:"email"`
}
type registerResponse struct {
Err string `json:"err"`
}
type loginRequest struct {
Username string `json:"username"`
AuthToken string `json:"authToken"`
}
type loginResponse struct {
Session string `json:"session"`
Err string `json:"err"`
}
type logoutRequest struct {
Username string `json:"username"`
Session string `json:"session"`
}
type logoutResponse struct {
Err string `json:"err"`
}
func decodeRegisterRequest(_ context.Context, r *http.Request) (interface{}, error) {
var request registerRequest
err := json.NewDecoder(r.Body).Decode(&request)
if err != nil {
return nil, err
}
return request, nil
}
func decodeLoginRequest(_ context.Context, r *http.Request) (interface{}, error) {
var request loginRequest
err := json.NewDecoder(r.Body).Decode(&request)
if err != nil {
return nil, err
}
return request, nil
}
func decodeLogoutRequest(_ context.Context, r *http.Request) (interface{}, error) {
var request logoutRequest
err := json.NewDecoder(r.Body).Decode(&request)
if err != nil {
return nil, err
}
return request, nil
}
func encodeResponse(_ context.Context, w http.ResponseWriter, response interface{}) error {
return json.NewEncoder(w).Encode(response)
}
func makeRegisterEndpoint(svc om.UserManager) endpoint.Endpoint {
return func(_ context.Context, request interface{}) (interface{}, error) {
req := request.(registerRequest)
err := svc.Register(om.User{req.Email, req.Username})
res := registerResponse{}
if err != nil {
res.Err = err.Error()
}
return res, nil
}
}
func makeLoginEndpoint(svc om.UserManager) endpoint.Endpoint {
return func(_ context.Context, request interface{}) (interface{}, error) {
req := request.(loginRequest)
session, err := svc.Login(req.Username, req.AuthToken)
res := loginResponse{Session: session}
if err != nil {
res.Err = err.Error()
}
return res, nil
}
}
func makeLogoutEndpoint(svc om.UserManager) endpoint.Endpoint {
return func(_ context.Context, request interface{}) (interface{}, error) {
req := request.(logoutRequest)
err := svc.Logout(req.Username, req.Session)
res := logoutResponse{}
if err != nil {
res.Err = err.Error()
}
return res, nil
}
}