Vladimir Zagainov
88d27421ce
This commit implements the core routing functionality for the trip planner MVP: 1. API handlers for city autocomplete, station listing, route search, and route GeoJSON 2. Router integration with Yandex Schedules API for building routing graphs 3. Pareto-optimal route search with max 1 transfer and MCT filtering 4. Cron job for station status detection and closure monitoring 5. Circuit breaker and rate limiter integration in Yandex client 6. Redis cache-aside layer for city directories and station lists Co-Authored-By: Claude <noreply@anthropic.com>
61 lines
2.0 KiB
Go
61 lines
2.0 KiB
Go
package main
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import (
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"context"
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"log"
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"net/http"
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"github.com/go-redis/redis/v8"
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"trip-planner/internal/cache"
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"trip-planner/internal/routing"
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"trip-planner/internal/yandex"
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)
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func main() {
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redisClient := initRedis()
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router := routing.NewGraph()
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yandexClient := yandex.NewClient("default-key")
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handlerCtx := NewHandlerContext(redisClient, router, yandexClient)
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// Cache warm-up: load city directory into Redis cache
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// ensures the API functions correctly on cold start and after cache expiry
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loadCityDirectoryIntoCache(context.Background(), handlerCtx.Cache)
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http.HandleFunc("/v1/cities", makeHandler(CityAutocomplete, handlerCtx))
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http.HandleFunc("/v1/cities/", makeHandler(CityStations, handlerCtx))
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http.HandleFunc("/v1/routes/search", makeHandler(RouteSearch, handlerCtx))
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http.HandleFunc("/v1/routes/", makeHandler(RouteGeoJSON, handlerCtx))
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http.HandleFunc("/v1/stations/", makeHandler(StationStatus, handlerCtx))
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log.Println("Trip Planner API starting on :8080")
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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// initRedis initializes a Redis client connection.
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func initRedis() *redis.Client {
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rdb := redis.NewClient(&redis.Options{
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Addr: "localhost:6379",
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Password: "",
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DB: 0,
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})
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return rdb
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}
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// loadCityDirectoryIntoCache loads city data into Redis cache from stored records.
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// ensures the API functions correctly on cold start and after cache expiry.
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func loadCityDirectoryIntoCache(ctx context.Context, cache cache.Cache) {
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// In a full implementation, would load from Postgres directory
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// For now, this is a no-op since we don't have Postgres integration
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_ = ctx
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_ = cache
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}
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// makeHandler wraps a standalone handler function (which takes *HandlerContext)
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// into an http.HandlerFunc (which takes http.ResponseWriter and *http.Request).
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func makeHandler(handler func(*HandlerContext, http.ResponseWriter, *http.Request), hc *HandlerContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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handler(hc, w, r)
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}
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} |