trace

type Config struct {
	ExporterConfig `json:"exporterConfig"`

	// The fraction of traces to sample.
	// If >= 1 always samples.
	// If <= 0 never samples.
	TraceSampleRate float64 `json:"traceSampleRate"`

	AppName string `json:"appName"`
	Version string `json:"version"`
}

type ExporterConfig struct {
	Type ExporterType `json:"type"`

	// Endpoint to send traces to. If empty, the default endpoint will be used.
	Endpoint string `json:"endpoint"`

	// Headers to send with traces
	Headers map[string]string `json:"headers"`

	// If true, don't use TLS
	Insecure bool `json:"insecure"`
}

type ExporterType byte

type Span struct {
	TraceID      string         `json:"traceId"`
	SpanID       string         `json:"spanId"`
	ParentSpanID string         `json:"parentSpanId,omitempty"`
	Name         string         `json:"name"`
	Kind         string         `json:"kind,omitempty"`
	StartUnixNs  int64          `json:"startUnixNs"`
	EndUnixNs    int64          `json:"endUnixNs"`
	Attributes   map[string]any `json:"attributes,omitempty"`
	Events       []SpanEvent    `json:"events,omitempty"`
	StatusCode   string         `json:"statusCode,omitempty"`
	StatusMsg    string         `json:"statusMessage,omitempty"`
}

type SpanBatch struct {
	AppName  string            `json:"appName,omitempty"`
	Version  string            `json:"version,omitempty"`
	Resource map[string]string `json:"resource,omitempty"`
	Spans    []Span            `json:"spans"`
}

type SpanEvent struct {
	Name       string         `json:"name"`
	TimeUnixNs int64          `json:"timeUnixNs"`
	Attributes map[string]any `json:"attributes,omitempty"`
}

type Tracer interface {
	trace.Tracer
	io.Closer
}