Ilia Denisov
39 lines
1.2 KiB
Go
39 lines
1.2 KiB
Go
// Package panicrecovery converts unrecovered panics into a structured 500
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// response and a single error-level log entry. It is wired exactly once at the
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// top of the gin middleware chain.
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package panicrecovery
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import (
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"net/http"
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"galaxy/backend/internal/server/httperr"
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"galaxy/backend/internal/server/middleware/requestid"
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"galaxy/backend/internal/telemetry"
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"github.com/gin-gonic/gin"
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"go.uber.org/zap"
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)
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// Middleware returns a gin middleware that recovers from panics, logs the
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// failure with trace fields, and writes the standard 500 envelope.
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func Middleware(logger *zap.Logger) gin.HandlerFunc {
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if logger == nil {
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logger = zap.NewNop()
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}
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return gin.CustomRecovery(func(c *gin.Context, recovered any) {
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fields := []zap.Field{
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zap.String("method", c.Request.Method),
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zap.String("path", c.FullPath()),
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zap.Any("panic", recovered),
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}
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if requestID, ok := requestid.FromGin(c); ok {
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fields = append(fields, zap.String("request_id", requestID))
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}
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fields = append(fields, telemetry.TraceFieldsFromContext(c.Request.Context())...)
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logger.Error("http handler panicked", fields...)
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httperr.Abort(c, http.StatusInternalServerError, httperr.CodeInternalError, "internal server error")
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})
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}
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