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mirror of https://github.com/labstack/echo.git synced 2024-12-22 20:06:21 +02:00
echo/group.go
Vishal Rana 1dcb7ba9ab fixed #623
Signed-off-by: Vishal Rana <vr@labstack.com>
2016-10-14 14:46:15 -07:00

161 lines
5.1 KiB
Go

package echo
import "path"
type (
// Group is a set of sub-routes for a specified route. It can be used for inner
// routes that share a common middlware or functionality that should be separate
// from the parent echo instance while still inheriting from it.
Group struct {
prefix string
middleware []MiddlewareFunc
echo *Echo
}
)
// Use implements `Echo#Use()` for sub-routes within the Group.
func (g *Group) Use(m ...MiddlewareFunc) {
g.middleware = append(g.middleware, m...)
// Allow all requests to reach the group as they might get dropped if router
// doesn't find a match, making none of the group middleware process.
g.echo.Any(g.prefix+"*", func(c Context) error {
return ErrNotFound
}, g.middleware...)
}
// CONNECT implements `Echo#CONNECT()` for sub-routes within the Group.
func (g *Group) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(CONNECT, path, h, m...)
}
// Connect is deprecated, use `CONNECT()` instead.
func (g *Group) Connect(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(CONNECT, path, h, m...)
}
// DELETE implements `Echo#DELETE()` for sub-routes within the Group.
func (g *Group) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(DELETE, path, h, m...)
}
// Delete is deprecated, use `DELETE()` instead.
func (g *Group) Delete(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(DELETE, path, h, m...)
}
// GET implements `Echo#GET()` for sub-routes within the Group.
func (g *Group) GET(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(GET, path, h, m...)
}
// Get is deprecated, use `GET()` instead.
func (g *Group) Get(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(GET, path, h, m...)
}
// HEAD implements `Echo#HEAD()` for sub-routes within the Group.
func (g *Group) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(HEAD, path, h, m...)
}
// Head is deprecated, use `HEAD()` instead.
func (g *Group) Head(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(HEAD, path, h, m...)
}
// OPTIONS implements `Echo#OPTIONS()` for sub-routes within the Group.
func (g *Group) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(OPTIONS, path, h, m...)
}
// Options is deprecated, use `OPTIONS()` instead.
func (g *Group) Options(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(OPTIONS, path, h, m...)
}
// PATCH implements `Echo#PATCH()` for sub-routes within the Group.
func (g *Group) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(PATCH, path, h, m...)
}
// Patch is deprecated, use `PATCH()` instead.
func (g *Group) Patch(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(PATCH, path, h, m...)
}
// POST implements `Echo#POST()` for sub-routes within the Group.
func (g *Group) POST(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(POST, path, h, m...)
}
// Post is deprecated, use `POST()` instead.
func (g *Group) Post(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(POST, path, h, m...)
}
// PUT implements `Echo#PUT()` for sub-routes within the Group.
func (g *Group) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(PUT, path, h, m...)
}
// Put is deprecated, use `PUT()` instead.
func (g *Group) Put(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(PUT, path, h, m...)
}
// TRACE implements `Echo#TRACE()` for sub-routes within the Group.
func (g *Group) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(TRACE, path, h, m...)
}
// Trace is deprecated, use `TRACE()` instead.
func (g *Group) Trace(path string, h HandlerFunc, m ...MiddlewareFunc) {
g.add(TRACE, path, h, m...)
}
// Any implements `Echo#Any()` for sub-routes within the Group.
func (g *Group) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
for _, m := range methods {
g.add(m, path, handler, middleware...)
}
}
// Match implements `Echo#Match()` for sub-routes within the Group.
func (g *Group) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
for _, m := range methods {
g.add(m, path, handler, middleware...)
}
}
// Group creates a new sub-group with prefix and optional sub-group-level middleware.
func (g *Group) Group(prefix string, middleware ...MiddlewareFunc) *Group {
m := []MiddlewareFunc{}
m = append(m, g.middleware...)
m = append(m, middleware...)
return g.echo.Group(g.prefix+prefix, m...)
}
// Static implements `Echo#Static()` for sub-routes within the Group.
func (g *Group) Static(prefix, root string) {
g.GET(g.prefix+prefix+"*", func(c Context) error {
return c.File(path.Join(root, c.P(0)))
})
}
// File implements `Echo#File()` for sub-routes within the Group.
func (g *Group) File(path, file string) {
g.GET(g.prefix+path, func(c Context) error {
return c.File(file)
})
}
func (g *Group) add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
// Combine into a new slice to avoid accidentally passing the same slice for
// multiple routes, which would lead to later add() calls overwriting the
// middleware from earlier calls.
m := []MiddlewareFunc{}
m = append(m, g.middleware...)
m = append(m, middleware...)
g.echo.add(method, g.prefix+path, handler, m...)
}