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0798f9fac8
* Adds root level middleware * Added todo * Better way for extensions to be added. * Bad conflict merge?
106 lines
3.2 KiB
Go
106 lines
3.2 KiB
Go
// TODO: it would be nice to move these into the top level folder so people can use these with the "functions" package, eg: functions.ApiHandler
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package server
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import (
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"net/http"
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"github.com/fnproject/fn/api"
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"github.com/fnproject/fn/api/models"
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"github.com/fnproject/fn/fnext"
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"github.com/gin-gonic/gin"
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)
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func (s *Server) apiHandlerWrapperFunc(apiHandler fnext.ApiHandler) gin.HandlerFunc {
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return func(c *gin.Context) {
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apiHandler.ServeHTTP(c.Writer, c.Request)
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}
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}
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func (s *Server) apiAppHandlerWrapperFunc(apiHandler fnext.ApiAppHandler) gin.HandlerFunc {
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return func(c *gin.Context) {
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// get the app
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appName := c.Param(api.CApp)
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app, err := s.Datastore.GetApp(c.Request.Context(), appName)
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if err != nil {
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handleErrorResponse(c, err)
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c.Abort()
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return
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}
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if app == nil {
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handleErrorResponse(c, models.ErrAppsNotFound)
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c.Abort()
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return
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}
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apiHandler.ServeHTTP(c.Writer, c.Request, app)
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}
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}
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func (s *Server) apiRouteHandlerWrapperFunc(apiHandler fnext.ApiRouteHandler) gin.HandlerFunc {
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return func(c *gin.Context) {
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context := c.Request.Context()
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// get the app
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appName := c.Param(api.CApp)
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app, err := s.Datastore.GetApp(context, appName)
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if err != nil {
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handleErrorResponse(c, err)
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c.Abort()
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return
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}
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if app == nil {
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handleErrorResponse(c, models.ErrAppsNotFound)
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c.Abort()
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return
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}
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// get the route TODO
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routePath := "/" + c.Param(api.CRoute)
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route, err := s.Datastore.GetRoute(context, appName, routePath)
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if err != nil {
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handleErrorResponse(c, err)
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c.Abort()
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return
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}
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if route == nil {
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handleErrorResponse(c, models.ErrRoutesNotFound)
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c.Abort()
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return
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}
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apiHandler.ServeHTTP(c.Writer, c.Request, app, route)
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}
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}
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// AddEndpoint adds an endpoint to /v1/x
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func (s *Server) AddEndpoint(method, path string, handler fnext.ApiHandler) {
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v1 := s.Router.Group("/v1")
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// v1.GET("/apps/:app/log", logHandler(cfg))
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v1.Handle(method, path, s.apiHandlerWrapperFunc(handler))
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}
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// AddEndpoint adds an endpoint to /v1/x
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func (s *Server) AddEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request)) {
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s.AddEndpoint(method, path, fnext.ApiHandlerFunc(handler))
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}
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// AddAppEndpoint adds an endpoints to /v1/apps/:app/x
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func (s *Server) AddAppEndpoint(method, path string, handler fnext.ApiAppHandler) {
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v1 := s.Router.Group("/v1")
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v1.Handle(method, "/apps/:app"+path, s.apiAppHandlerWrapperFunc(handler))
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}
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// AddAppEndpoint adds an endpoints to /v1/apps/:app/x
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func (s *Server) AddAppEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request, app *models.App)) {
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s.AddAppEndpoint(method, path, fnext.ApiAppHandlerFunc(handler))
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}
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// AddRouteEndpoint adds an endpoints to /v1/apps/:app/routes/:route/x
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func (s *Server) AddRouteEndpoint(method, path string, handler fnext.ApiRouteHandler) {
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v1 := s.Router.Group("/v1")
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v1.Handle(method, "/apps/:app/routes/:route"+path, s.apiRouteHandlerWrapperFunc(handler)) // conflicts with existing wildcard
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}
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// AddRouteEndpoint adds an endpoints to /v1/apps/:app/routes/:route/x
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func (s *Server) AddRouteEndpointFunc(method, path string, handler func(w http.ResponseWriter, r *http.Request, app *models.App, route *models.Route)) {
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s.AddRouteEndpoint(method, path, fnext.ApiRouteHandlerFunc(handler))
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}
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