grendervill
69aa98e18c
- internal/config: конфигурация из env с валидацией и дефолтами (§5.1, §9.1) - internal/httpx: middleware (request id, slog-логи, recover, security-заголовки), единый формат ошибок §8.5 и лимит тела запроса - internal/database: SQLite WAL + busy_timeout + foreign_keys, один writer и пул чтения, goose-миграции embedded, PRAGMA optimize по расписанию - internal/meta: полезная нагрузка /api/v1/meta (версия, фичи, лимиты) - internal/server: маршруты, SPA-раздача собранного клиента, OpenAPI 3.1 - cmd/glchat: точка входа с graceful shutdown и JSON-логами - тесты: конфиг, миграции и идемпотентность, HTTP-эндпоинты, статика, 404/405
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package httpx
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import (
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"encoding/json"
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"errors"
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"log/slog"
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"net/http"
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)
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type ErrorCode string
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const (
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CodeInternalError ErrorCode = "internal.error"
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CodeNotFound ErrorCode = "not_found"
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CodeBadRequest ErrorCode = "request.bad"
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CodeRateLimited ErrorCode = "ratelimit.hit"
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CodeNotReady ErrorCode = "instance.not_ready"
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)
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type Error struct {
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Code ErrorCode `json:"code"`
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Message string `json:"message"`
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Details any `json:"details,omitempty"`
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}
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type errorEnvelope struct {
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Error Error `json:"error"`
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}
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func (e Error) HTTPStatus() int {
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switch e.Code {
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case CodeNotFound:
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return http.StatusNotFound
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case CodeBadRequest:
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return http.StatusBadRequest
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case CodeRateLimited:
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return http.StatusTooManyRequests
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case CodeNotReady:
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return http.StatusServiceUnavailable
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default:
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return http.StatusInternalServerError
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}
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}
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func NewError(code ErrorCode, message string) Error {
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return Error{Code: code, Message: message}
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}
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func WriteJSON(w http.ResponseWriter, status int, body any) {
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Header().Set("X-Content-Type-Options", "nosniff")
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w.WriteHeader(status)
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if body == nil {
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return
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}
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if err := json.NewEncoder(w).Encode(body); err != nil {
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slog.Error("write json response", "error", err)
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}
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}
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func WriteError(w http.ResponseWriter, apiErr Error) {
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WriteJSON(w, apiErr.HTTPStatus(), errorEnvelope{Error: apiErr})
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}
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func WriteErrorStatus(w http.ResponseWriter, status int, code ErrorCode, message string) {
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WriteJSON(w, status, errorEnvelope{Error: NewError(code, message)})
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}
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func StatusForCode(code ErrorCode) int { return NewError(code, "").HTTPStatus() }
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var errBodyTooLarge = errors.New("request body too large")
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