mirror of
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120 lines
4.2 KiB
Go
120 lines
4.2 KiB
Go
package echo
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import (
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"net/http"
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)
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type (
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// Group is a set of sub-routes for a specified route. It can be used for inner
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// routes that share a common middleware or functionality that should be separate
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// from the parent echo instance while still inheriting from it.
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Group struct {
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common
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host string
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prefix string
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middleware []MiddlewareFunc
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echo *Echo
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}
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)
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// Use implements `Echo#Use()` for sub-routes within the Group.
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func (g *Group) Use(middleware ...MiddlewareFunc) {
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g.middleware = append(g.middleware, middleware...)
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if len(g.middleware) == 0 {
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return
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}
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// Allow all requests to reach the group as they might get dropped if router
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// doesn't find a match, making none of the group middleware process.
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g.Any("", NotFoundHandler)
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g.Any("/*", NotFoundHandler)
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}
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// CONNECT implements `Echo#CONNECT()` for sub-routes within the Group.
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func (g *Group) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodConnect, path, h, m...)
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}
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// DELETE implements `Echo#DELETE()` for sub-routes within the Group.
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func (g *Group) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodDelete, path, h, m...)
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}
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// GET implements `Echo#GET()` for sub-routes within the Group.
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func (g *Group) GET(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodGet, path, h, m...)
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}
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// HEAD implements `Echo#HEAD()` for sub-routes within the Group.
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func (g *Group) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodHead, path, h, m...)
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}
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// OPTIONS implements `Echo#OPTIONS()` for sub-routes within the Group.
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func (g *Group) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodOptions, path, h, m...)
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}
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// PATCH implements `Echo#PATCH()` for sub-routes within the Group.
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func (g *Group) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodPatch, path, h, m...)
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}
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// POST implements `Echo#POST()` for sub-routes within the Group.
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func (g *Group) POST(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodPost, path, h, m...)
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}
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// PUT implements `Echo#PUT()` for sub-routes within the Group.
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func (g *Group) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodPut, path, h, m...)
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}
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// TRACE implements `Echo#TRACE()` for sub-routes within the Group.
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func (g *Group) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
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return g.Add(http.MethodTrace, path, h, m...)
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}
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// Any implements `Echo#Any()` for sub-routes within the Group.
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func (g *Group) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route {
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routes := make([]*Route, len(methods))
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for i, m := range methods {
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routes[i] = g.Add(m, path, handler, middleware...)
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}
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return routes
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}
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// Match implements `Echo#Match()` for sub-routes within the Group.
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func (g *Group) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route {
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routes := make([]*Route, len(methods))
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for i, m := range methods {
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routes[i] = g.Add(m, path, handler, middleware...)
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}
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return routes
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}
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// Group creates a new sub-group with prefix and optional sub-group-level middleware.
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func (g *Group) Group(prefix string, middleware ...MiddlewareFunc) (sg *Group) {
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m := make([]MiddlewareFunc, 0, len(g.middleware)+len(middleware))
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m = append(m, g.middleware...)
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m = append(m, middleware...)
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sg = g.echo.Group(g.prefix+prefix, m...)
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sg.host = g.host
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return
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}
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// File implements `Echo#File()` for sub-routes within the Group.
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func (g *Group) File(path, file string) {
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g.file(path, file, g.GET)
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}
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// Add implements `Echo#Add()` for sub-routes within the Group.
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func (g *Group) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route {
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// Combine into a new slice to avoid accidentally passing the same slice for
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// multiple routes, which would lead to later add() calls overwriting the
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// middleware from earlier calls.
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m := make([]MiddlewareFunc, 0, len(g.middleware)+len(middleware))
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m = append(m, g.middleware...)
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m = append(m, middleware...)
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return g.echo.add(g.host, method, g.prefix+path, handler, m...)
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}
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