英文:
golang gin-gonic/gin framework use another param instead of callback
问题
在我的情况下，我想使用另一个参数而不是回调函数。
我的URL是：http://example.com?id=1&cb=callback1
但是我在源代码中找到了这个：
// JSONP将给定的结构体序列化为JSON并写入响应体中。// 它会在响应体中添加填充，以从与客户端不同域的服务器请求数据。// 它还将Content-Type设置为"application/javascript"。func (c *Context) JSONP(code int, obj interface{}) {callback := c.DefaultQuery("callback", "")if callback == "" {c.Render(code, render.JSON{Data: obj})return}c.Render(code, render.JsonpJSON{Callback: callback, Data: obj})}
我该如何使用参数"cb"而不是"callback"？
英文:
in my case, I want to use anothor param instead of callback
my url: http://example.com?id=1&cb=callback1
but I found this in the source code:
// JSONP serializes the given struct as JSON into the response body.// It adds padding to response body to request data from a server residing in a different domain than the client.// It also sets the Content-Type as "application/javascript".func (c *Context) JSONP(code int, obj interface{}) {callback := c.DefaultQuery("callback", "")if callback == "" {c.Render(code, render.JSON{Data: obj})return}c.Render(code, render.JsonpJSON{Callback: callback, Data: obj})}
how can I use the param cb instead of callback
答案1
得分: 0
你可以使用gin的中间件来修改查询参数在解析之前。
package mainimport ("fmt""github.com/gin-gonic/gin""net/url")func main() {r := gin.Default()r.Use(func(context *gin.Context) {req := context.RequesturlCopy, _ := req.URL.Parse(req.RequestURI)if cb := urlCopy.Query().Get("cb"); cb != "" {req.URL.RawQuery += fmt.Sprintf("&callback=%s", url.QueryEscape(cb))}})r.GET("/ping", func(c *gin.Context) {c.JSONP(400, 1)})r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")}
英文:
You can use middleware for gin. Modifying the query before it is parsed.
package mainimport ("fmt""github.com/gin-gonic/gin""net/url")func main() {r := gin.Default()r.Use(func(context *gin.Context) {req := context.RequesturlCopy, _ := req.URL.Parse(req.RequestURI)if cb := urlCopy.Query().Get("cb"); cb != "" {req.URL.RawQuery += fmt.Sprintf("&callback=%s", url.QueryEscape(cb))}})r.GET("/ping", func(c *gin.Context) {c.JSONP(400, 1)})r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")}
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