84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
package main
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import (
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"compress/gzip"
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"encoding/json"
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"net/http"
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"strings"
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"github.com/ecix/alice-lg/backend/api"
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"github.com/julienschmidt/httprouter"
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)
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// Alice LG Rest API
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//
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// The API provides endpoints for getting
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// information from the routeservers / alice datasources.
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//
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// Endpoints:
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//
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// Config
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// Show /api/config
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//
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// Routeservers
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// List /api/routeservers
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// Status /api/routeservers/:id/status
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// Neighbours /api/routeservers/:id/neighbours
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// Routes /api/routeservers/:id/neighbours/:neighbour_id/routes
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//
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type apiEndpoint func(*http.Request, httprouter.Params) (interface{}, error)
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// Wrap handler for access controll, throtteling and compression
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func endpoint(wrapped apiEndpoint) httprouter.Handle {
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return func(res http.ResponseWriter,
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req *http.Request,
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params httprouter.Params) {
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// Get result from handler
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result, err := wrapped(req, params)
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if err != nil {
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result = api.ErrorResponse{
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Error: err.Error(),
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}
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payload, _ := json.Marshal(result)
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http.Error(res, string(payload), http.StatusInternalServerError)
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return
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}
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// Encode json
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payload, err := json.Marshal(result)
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// Set response header
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res.Header().Set("Content-Type", "application/json")
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// Check if compression is supported
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if strings.Contains(req.Header.Get("Accept-Encoding"), "gzip") {
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// Compress response
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res.Header().Set("Content-Encoding", "gzip")
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gz := gzip.NewWriter(res)
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defer gz.Close()
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gz.Write(payload)
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} else {
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res.Write(payload) // Fall back to uncompressed response
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}
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}
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}
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// Register api endpoints
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func apiRegisterEndpoints(router *httprouter.Router) error {
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// Config
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router.GET("/api/config", endpoint(apiConfigShow))
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// Routeservers
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return nil
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}
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// Handle Config Endpoint
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func apiConfigShow(_req *http.Request, _params httprouter.Params) (interface{}, error) {
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return "Everythings fine."
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}
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