common

type Payload struct {

	// metadata: Custom key-value pairs for message routing, filtering, and tracking.
	// Common uses: correlation IDs, trace context, source system, user ID, tenant ID.
	// These values are indexed and can be queried without deserializing the data field.
	Metadata map[string]*structpb.Value `` /* 143-byte string literal not displayed */
	// data: The actual message payload as structured data (JSON, Protobuf, etc.).
	// This is your business data - orders, events, tasks, notifications, etc.
	// Stored as google.protobuf.Struct for flexibility across different data formats.
	Data *structpb.Struct `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
	// content_type: MIME type indicating the data format.
	// Examples: "application/json", "application/xml", "text/plain", "application/protobuf"
	// Used for automatic deserialization and processing by workers.
	ContentType string `protobuf:"bytes,3,opt,name=content_type,json=contentType,proto3" json:"content_type,omitempty"`
	// schema_id: Reference to a registered schema for validation.
	// If provided, ChronoQueue validates the data against this schema before accepting the message.
	// Example: "order.created.v1", "user.profile.v2"
	// Use RegisterSchema API to define schemas.
	SchemaId string `protobuf:"bytes,4,opt,name=schema_id,json=schemaId,proto3" json:"schema_id,omitempty"`
	// schema_version: Version number of the schema to use.
	// Allows schema evolution while maintaining backward compatibility.
	// If omitted, uses the latest active version of schema_id.
	SchemaVersion int32 `protobuf:"varint,5,opt,name=schema_version,json=schemaVersion,proto3" json:"schema_version,omitempty"`
	// contains filtered or unexported fields
}