-
Notifications
You must be signed in to change notification settings - Fork 9
/
main.go
107 lines (86 loc) · 2.75 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"log"
"net/http"
spanner "cloud.google.com/go/spanner"
"github.com/gin-gonic/gin"
"github.com/cloudspannerecosystem/spanner-gaming-sample/gaming-matchmaking-service/config"
"github.com/cloudspannerecosystem/spanner-gaming-sample/gaming-matchmaking-service/models"
)
// Mutator to create spanner context and client, and set them in gin
func setSpannerConnection(c config.Config) gin.HandlerFunc {
ctx := context.Background()
client, err := spanner.NewClient(ctx, c.Spanner.DB())
if err != nil {
log.Fatal(err)
}
return func(c *gin.Context) {
c.Set("spanner_client", *client)
c.Set("spanner_context", ctx)
c.Next()
}
}
// Helper function to retrieve spanner client and context
func getSpannerConnection(c *gin.Context) (context.Context, spanner.Client) {
return c.MustGet("spanner_context").(context.Context),
c.MustGet("spanner_client").(spanner.Client)
}
// Creating a game assigns a list of players not currently playing a game
func createGame(c *gin.Context) {
var game models.Game
ctx, client := getSpannerConnection(c)
err := game.CreateGame(ctx, client)
if err != nil {
c.AbortWithError(http.StatusBadRequest, err)
return
}
c.IndentedJSON(http.StatusCreated, game.GameUUID)
}
func closeGame(c *gin.Context) {
var game models.Game
if err := c.BindJSON(&game); err != nil {
c.AbortWithError(http.StatusBadRequest, err)
return
}
ctx, client := getSpannerConnection(c)
err := game.CloseGame(ctx, client)
if err != nil {
c.AbortWithError(http.StatusBadRequest, err)
return
}
c.IndentedJSON(http.StatusOK, game.Winner)
}
func getOpenGame(c *gin.Context) {
ctx, client := getSpannerConnection(c)
game, err := models.GetOpenGame(ctx, client)
if err != nil {
c.AbortWithError(http.StatusBadRequest, err)
return
}
c.IndentedJSON(http.StatusOK, game)
}
func main() {
configuration, _ := config.NewConfig()
router := gin.Default()
// TODO: Better configuration of trusted proxy
router.SetTrustedProxies(nil)
router.Use(setSpannerConnection(configuration))
router.GET("/games/open", getOpenGame)
router.POST("/games/create", createGame)
router.PUT("/games/close", closeGame)
router.Run(configuration.Server.URL())
}