英文:
Reading QueryArray from Gin golang
问题
你好，我将为你翻译以下内容：
嗨，我正在将查询参数传递给我的gin服务器，像这样：
curl -X POST
'http://localhost:4000/url?X=val1&Y=val2&x[]=1&x[]=2'
然后将其发送到我的gin处理函数中：
func handler(c *gin.Context) {
fmt.Println(c.Query("X"))
fmt.Println(c.Query("Y"))
fmt.Println(c.QueryArray("x"))
}
虽然 c.Query("x") 和 c.Query("Y") 能正常工作，但 c.QueryArray("x") 却不能正常工作！
我不确定我在这里漏掉了什么。我也尝试过使用GET请求，但也不起作用。
以下是我尝试过但没有成功的其他实验：
fmt.Println(c.Params.Get("x"))
fmt.Println(c.Params.Get("gene"))
fmt.Println(c.PostFormArray("x"))
希望对你有帮助！
英文:
Hi I am passing a query parameter to my gin server like this:
> curl -X POST \
> 'http://localhost:4000/url?X=val1&Y=val2&x[]=1&x[]=2'
This is then sent to the my gin handler function
func handler (c *gin.Context) {
fmt.Println(c.Query("X"))
fmt.Println(c.Query("Y"))
fmt.Println(c.QueryArray("x"))
}
While c.Query("x") and c.Query("Y") works, c.QueryArray("x") does not work!
I am not sure what am I missing over here. I have tried the same with GET request as well and it does not work.
Other experiments that did not work for me are here:
fmt.Println(c.Params.Get("x"))
fmt.Println(c.Params.Get("gene"))
fmt.Println(c.PostFormArray("x"))
答案1
得分: 9
从我的评论中起草的答案供 Stack Overflow 用户使用。
重复字段名和值：
curl -X POST 'http://localhost:4000/url?X=val1&Y=val2&x=1&x=2'
或者：
用逗号分隔：
curl -X POST 'http://localhost:4000/url?X=val1&Y=val2&x=1,2'
英文:
Drafted answer from my comment for SO users.
Repeat field name with values:
curl -X POST 'http://localhost:4000/url?X=val1&Y=val2&x=1&x=2'
or:
Separated by commas:
curl -X POST 'http://localhost:4000/url?X=val1&Y=val2&x=1,2'
答案2
得分: 0
这可能有点过度设计，但对我来说完成了任务：
// @Param property_type query []uint32 false "property_types"
func (svc *HttpService) acceptListofQuery(c *gin.Context) {
var propertyTypes []uint32
propertyTypes, done := svc.parsePropTypes(c)
if done {
return
}
// ..... 其余逻辑在这里
c.JSON(200, "We good")
}
func (svc *HttpService) parsePropTypes(c *gin.Context) ([]uint32, bool) {
var propertyTypes []uint32
var propertyTypesAsString string
var propertyTypesAsArrayOfStrings []string
propertyTypesAsString, success := c.GetQuery("property_types")
propertyTypesAsArrayOfStrings = strings.Split(propertyTypesAsString, ",")
if success {
for _, propertyTypeAsString := range propertyTypesAsArrayOfStrings {
i, err := strconv.Atoi(propertyTypeAsString)
if err != nil {
svc.ErrorWithJson(c, 400, errors.New("invalid property_types array"))
return nil, true
}
propertyTypes = append(propertyTypes, uint32(i))
}
}
return propertyTypes, false
}
然后你可以发送类似这样的请求：
curl -X POST 'http://localhost:4000/url?property_types=1,4,7,12'
英文:
This maybe over-engineered, but it got things done for me:
// @Param property_type query []uint32 false "property_types"
func (svc *HttpService) acceptListofQuery(c *gin.Context) {
var propertyTypes []uint32
propertyTypes, done := svc.parsePropTypes(c)
if done {
return
}
// ..... rest of logic here
c.JSON(200, "We good")
}
func (svc *HttpService) parsePropTypes(c *gin.Context) ([]uint32, bool) {
var propertyTypes []uint32
var propertyTypesAsString string
var propertyTypesAsArrayOfStrings []string
propertyTypesAsString, success := c.GetQuery("property_types")
propertyTypesAsArrayOfStrings = strings.Split(propertyTypesAsString, ",")
if success {
for _, propertyTypeAsString := range propertyTypesAsArrayOfStrings {
i, err := strconv.Atoi(propertyTypeAsString)
if err != nil {
svc.ErrorWithJson(c, 400, errors.New("invalid property_types array"))
return nil, true
}
propertyTypes = append(propertyTypes, uint32(i))
}
}
return propertyTypes, false
}
Then you can send something like:
curl -X POST 'http://localhost:4000/url?property_types=1,4,7,12
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