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MrTimeoutMrTimeout
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Adding sample repository with gin and safe thread map
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+299
-0
lines changed

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+299
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‎gin/validations/Makefile

+6
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
1+
build:
2+
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o validations ./...
3+
4+
debug:
5+
CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -o ./validations -gcflags="all=-N -l" ./...
6+
@dlv --listen=:2345 --headless=true --api-version=2 exec ./validations

‎gin/validations/go.mod

+29
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,29 @@
1+
module github.com/MrTimeout/golang/gin/validations
2+
3+
go 1.19
4+
5+
require (
6+
github.com/gin-gonic/gin v1.8.1
7+
github.com/google/uuid v1.3.0
8+
)
9+
10+
require (
11+
github.com/gin-contrib/sse v0.1.0 // indirect
12+
github.com/go-playground/locales v0.14.0 // indirect
13+
github.com/go-playground/universal-translator v0.18.0 // indirect
14+
github.com/go-playground/validator/v10 v10.10.0 // indirect
15+
github.com/goccy/go-json v0.9.7 // indirect
16+
github.com/json-iterator/go v1.1.12 // indirect
17+
github.com/leodido/go-urn v1.2.1 // indirect
18+
github.com/mattn/go-isatty v0.0.14 // indirect
19+
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
20+
github.com/modern-go/reflect2 v1.0.2 // indirect
21+
github.com/pelletier/go-toml/v2 v2.0.1 // indirect
22+
github.com/ugorji/go/codec v1.2.7 // indirect
23+
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
24+
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect
25+
golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 // indirect
26+
golang.org/x/text v0.3.6 // indirect
27+
google.golang.org/protobuf v1.28.0 // indirect
28+
gopkg.in/yaml.v2 v2.4.0 // indirect
29+
)

‎gin/validations/go.sum

+88
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,88 @@
1+
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
2+
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
3+
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
4+
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
5+
github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
6+
github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
7+
github.com/gin-gonic/gin v1.8.1 h1:4+fr/el88TOO3ewCmQr8cx/CtZ/umlIRIs5M4NTNjf8=
8+
github.com/gin-gonic/gin v1.8.1/go.mod h1:ji8BvRH1azfM+SYow9zQ6SZMvR8qOMZHmsCuWR9tTTk=
9+
github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
10+
github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
11+
github.com/go-playground/locales v0.14.0 h1:u50s323jtVGugKlcYeyzC0etD1HifMjqmJqb8WugfUU=
12+
github.com/go-playground/locales v0.14.0/go.mod h1:sawfccIbzZTqEDETgFXqTho0QybSa7l++s0DH+LDiLs=
13+
github.com/go-playground/universal-translator v0.18.0 h1:82dyy6p4OuJq4/CByFNOn/jYrnRPArHwAcmLoJZxyho=
14+
github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl+lu/H90nyDXpg0fqeB/AQUGNTVA=
15+
github.com/go-playground/validator/v10 v10.10.0 h1:I7mrTYv78z8k8VXa/qJlOlEXn/nBh+BF8dHX5nt/dr0=
16+
github.com/go-playground/validator/v10 v10.10.0/go.mod h1:74x4gJWsvQexRdW8Pn3dXSGrTK4nAUsbPlLADvpJkos=
17+
github.com/goccy/go-json v0.9.7 h1:IcB+Aqpx/iMHu5Yooh7jEzJk1JZ7Pjtmys2ukPr7EeM=
18+
github.com/goccy/go-json v0.9.7/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
19+
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
20+
github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
21+
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
22+
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
23+
github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
24+
github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
25+
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
26+
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
27+
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
28+
github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
29+
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
30+
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
31+
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
32+
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
33+
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
34+
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
35+
github.com/leodido/go-urn v1.2.1 h1:BqpAaACuzVSgi/VLzGZIobT2z4v53pjosyNd9Yv6n/w=
36+
github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ictyFfxY=
37+
github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
38+
github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
39+
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
40+
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
41+
github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
42+
github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
43+
github.com/pelletier/go-toml/v2 v2.0.1 h1:8e3L2cCQzLFi2CR4g7vGFuFxX7Jl1kKX8gW+iV0GUKU=
44+
github.com/pelletier/go-toml/v2 v2.0.1/go.mod h1:r9LEWfGN8R5k0VXJ+0BkIe7MYkRdwZOjgMj2KwnJFUo=
45+
github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
46+
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
47+
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
48+
github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
49+
github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
50+
github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
51+
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
52+
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
53+
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
54+
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
55+
github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
56+
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
57+
github.com/ugorji/go v1.2.7/go.mod h1:nF9osbDWLy6bDVv/Rtoh6QgnvNDpmCalQV5urGCCS6M=
58+
github.com/ugorji/go/codec v1.2.7 h1:YPXUKf7fYbp/y8xloBqZOw2qaVggbfwMlI8WM3wZUJ0=
59+
github.com/ugorji/go/codec v1.2.7/go.mod h1:WGN1fab3R1fzQlVQTkfxVtIBhWDRqOviHU95kRgeqEY=
60+
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=
61+
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
62+
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw=
63+
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
64+
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
65+
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
66+
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
67+
golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 h1:siQdpVirKtzPhKl3lZWozZraCFObP8S1v6PRp0bLrtU=
68+
golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
69+
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
70+
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
71+
golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
72+
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
73+
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
74+
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
75+
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
76+
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
77+
google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
78+
google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
79+
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
80+
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
81+
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
82+
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
83+
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
84+
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
85+
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
86+
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
87+
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
88+
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

‎gin/validations/main.go

+119
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,119 @@
1+
package main
2+
3+
import (
4+
"encoding/json"
5+
"errors"
6+
"net/http"
7+
8+
"github.com/gin-gonic/gin"
9+
"github.com/google/uuid"
10+
)
11+
12+
var animalParameter = "animalId"
13+
14+
type Animal struct {
15+
ID uuid.UUID `json:"id" uri:"animalId"`
16+
Name string `json:"name"`
17+
Specie string `json:"specie"`
18+
}
19+
20+
func (animal *Animal) UnmarshalJSON(buf []byte) error {
21+
type Alias Animal
22+
aux := Alias{
23+
ID: uuid.Must(uuid.NewRandom()),
24+
}
25+
26+
if err := json.Unmarshal(buf, &aux); err != nil {
27+
return err
28+
}
29+
30+
*animal = Animal(aux)
31+
return nil
32+
}
33+
34+
func (animal *Animal) BindUri(params gin.Params) error {
35+
if v, ok := params.Get(animalParameter); ok {
36+
var err error
37+
if animal.ID, err = uuid.Parse(v); err != nil {
38+
return err
39+
}
40+
}
41+
return nil
42+
}
43+
44+
func (a Animal) Merge(target Animal) Animal {
45+
if a.Name == "" {
46+
a.Name = target.Name
47+
}
48+
if a.Specie == "" {
49+
a.Specie = target.Specie
50+
}
51+
52+
return a
53+
}
54+
55+
var animalsDB hashMap[uuid.UUID, Animal]
56+
57+
func init() {
58+
animalsDB = newHashMap[uuid.UUID, Animal]()
59+
}
60+
61+
func main() {
62+
engine := gin.Default()
63+
64+
animals := engine.Group("/api/animals")
65+
{
66+
animals.GET("", func(c *gin.Context) {
67+
c.JSON(http.StatusOK, animalsDB.toArray())
68+
})
69+
70+
animals.POST("", func(c *gin.Context) {
71+
var a Animal
72+
if err := c.BindJSON(&a); err != nil {
73+
c.AbortWithError(http.StatusBadRequest, err)
74+
return
75+
}
76+
77+
animalsDB.put(a.ID, a)
78+
c.JSON(http.StatusOK, a)
79+
})
80+
81+
animals.GET("/:"+animalParameter, func(c *gin.Context) {
82+
var a Animal
83+
if err := a.BindUri(c.Params); err != nil {
84+
c.AbortWithError(http.StatusBadRequest, err)
85+
return
86+
}
87+
88+
a, ok := animalsDB.get(a.ID)
89+
if !ok {
90+
c.AbortWithError(http.StatusBadRequest, errors.New("entry not found"))
91+
return
92+
}
93+
94+
c.JSON(http.StatusOK, a)
95+
})
96+
97+
animals.PUT("/:"+animalParameter, func(c *gin.Context) {
98+
var a Animal
99+
if err := c.BindJSON(&a); err != nil {
100+
c.AbortWithError(http.StatusBadRequest, err)
101+
return
102+
}
103+
104+
if err := a.BindUri(c.Params); err != nil {
105+
c.AbortWithError(http.StatusBadRequest, err)
106+
return
107+
}
108+
109+
v, ok := animalsDB.get(a.ID)
110+
if !ok {
111+
c.AbortWithError(http.StatusBadRequest, errors.New("entry not found"))
112+
return
113+
}
114+
115+
c.JSON(http.StatusOK, animalsDB.put(a.ID, a.Merge(v)))
116+
})
117+
}
118+
engine.Run(":8080")
119+
}

‎gin/validations/repository.go

+57
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,57 @@
1+
package main
2+
3+
import "sync"
4+
5+
type hashMap[K comparable, V any] struct {
6+
l sync.Mutex
7+
m map[K]V
8+
}
9+
10+
func newHashMap[K comparable, V any]() hashMap[K, V] {
11+
return hashMap[K, V]{
12+
m: make(map[K]V),
13+
}
14+
}
15+
16+
func (h *hashMap[K, V]) get(key K) (V, bool) {
17+
h.l.Lock()
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defer h.l.Unlock()
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var v V
20+
if v, ok := h.m[key]; ok {
21+
return v, true
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}
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return v, false
24+
}
25+
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func (h *hashMap[K, V]) getAll() map[K]V {
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h.l.Lock()
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defer h.l.Unlock()
29+
return h.m
30+
}
31+
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func (h *hashMap[K, V]) put(key K, v V) V {
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h.l.Lock()
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defer h.l.Unlock()
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h.m[key] = v
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return v
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}
38+
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func (h *hashMap[K, V]) del(key K) {
40+
h.l.Lock()
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defer h.l.Unlock()
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delete(h.m, key)
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}
44+
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func (h *hashMap[K, V]) toArray() []V {
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h.l.Lock()
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defer h.l.Unlock()
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var (
49+
result = make([]V, len(h.m))
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count int
51+
)
52+
for _, v := range h.m {
53+
result[count] = v
54+
count++
55+
}
56+
return result
57+
}

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