first commit

backend/internal/service/ops_upstream_context.go

@@ -0,0 +1,131 @@
+package service
+
+import (
+	"encoding/json"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+// Gin context keys used by Ops error logger for capturing upstream error details.
+// These keys are set by gateway services and consumed by handler/ops_error_logger.go.
+const (
+	OpsUpstreamStatusCodeKey   = "ops_upstream_status_code"
+	OpsUpstreamErrorMessageKey = "ops_upstream_error_message"
+	OpsUpstreamErrorDetailKey  = "ops_upstream_error_detail"
+	OpsUpstreamErrorsKey       = "ops_upstream_errors"
+
+	// Best-effort capture of the current upstream request body so ops can
+	// retry the specific upstream attempt (not just the client request).
+	// This value is sanitized+trimmed before being persisted.
+	OpsUpstreamRequestBodyKey = "ops_upstream_request_body"
+)
+
+func setOpsUpstreamError(c *gin.Context, upstreamStatusCode int, upstreamMessage, upstreamDetail string) {
+	if c == nil {
+		return
+	}
+	if upstreamStatusCode > 0 {
+		c.Set(OpsUpstreamStatusCodeKey, upstreamStatusCode)
+	}
+	if msg := strings.TrimSpace(upstreamMessage); msg != "" {
+		c.Set(OpsUpstreamErrorMessageKey, msg)
+	}
+	if detail := strings.TrimSpace(upstreamDetail); detail != "" {
+		c.Set(OpsUpstreamErrorDetailKey, detail)
+	}
+}
+
+// OpsUpstreamErrorEvent describes one upstream error attempt during a single gateway request.
+// It is stored in ops_error_logs.upstream_errors as a JSON array.
+type OpsUpstreamErrorEvent struct {
+	AtUnixMs int64 `json:"at_unix_ms,omitempty"`
+
+	// Context
+	Platform    string `json:"platform,omitempty"`
+	AccountID   int64  `json:"account_id,omitempty"`
+	AccountName string `json:"account_name,omitempty"`
+
+	// Outcome
+	UpstreamStatusCode int    `json:"upstream_status_code,omitempty"`
+	UpstreamRequestID  string `json:"upstream_request_id,omitempty"`
+
+	// Best-effort upstream request capture (sanitized+trimmed).
+	// Required for retrying a specific upstream attempt.
+	UpstreamRequestBody string `json:"upstream_request_body,omitempty"`
+
+	// Best-effort upstream response capture (sanitized+trimmed).
+	UpstreamResponseBody string `json:"upstream_response_body,omitempty"`
+
+	// Kind: http_error | request_error | retry_exhausted | failover
+	Kind string `json:"kind,omitempty"`
+
+	Message string `json:"message,omitempty"`
+	Detail  string `json:"detail,omitempty"`
+}
+
+func appendOpsUpstreamError(c *gin.Context, ev OpsUpstreamErrorEvent) {
+	if c == nil {
+		return
+	}
+	if ev.AtUnixMs <= 0 {
+		ev.AtUnixMs = time.Now().UnixMilli()
+	}
+	ev.Platform = strings.TrimSpace(ev.Platform)
+	ev.UpstreamRequestID = strings.TrimSpace(ev.UpstreamRequestID)
+	ev.UpstreamRequestBody = strings.TrimSpace(ev.UpstreamRequestBody)
+	ev.UpstreamResponseBody = strings.TrimSpace(ev.UpstreamResponseBody)
+	ev.Kind = strings.TrimSpace(ev.Kind)
+	ev.Message = strings.TrimSpace(ev.Message)
+	ev.Detail = strings.TrimSpace(ev.Detail)
+	if ev.Message != "" {
+		ev.Message = sanitizeUpstreamErrorMessage(ev.Message)
+	}
+
+	// If the caller didn't explicitly pass upstream request body but the gateway
+	// stored it on the context, attach it so ops can retry this specific attempt.
+	if ev.UpstreamRequestBody == "" {
+		if v, ok := c.Get(OpsUpstreamRequestBodyKey); ok {
+			if s, ok := v.(string); ok {
+				ev.UpstreamRequestBody = strings.TrimSpace(s)
+			}
+		}
+	}
+
+	var existing []*OpsUpstreamErrorEvent
+	if v, ok := c.Get(OpsUpstreamErrorsKey); ok {
+		if arr, ok := v.([]*OpsUpstreamErrorEvent); ok {
+			existing = arr
+		}
+	}
+
+	evCopy := ev
+	existing = append(existing, &evCopy)
+	c.Set(OpsUpstreamErrorsKey, existing)
+}
+
+func marshalOpsUpstreamErrors(events []*OpsUpstreamErrorEvent) *string {
+	if len(events) == 0 {
+		return nil
+	}
+	// Ensure we always store a valid JSON value.
+	raw, err := json.Marshal(events)
+	if err != nil || len(raw) == 0 {
+		return nil
+	}
+	s := string(raw)
+	return &s
+}
+
+func ParseOpsUpstreamErrors(raw string) ([]*OpsUpstreamErrorEvent, error) {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return []*OpsUpstreamErrorEvent{}, nil
+	}
+	var out []*OpsUpstreamErrorEvent
+	if err := json.Unmarshal([]byte(raw), &out); err != nil {
+		return nil, err
+	}
+	return out, nil
+}