Represents a trace span.
Package
@google-cloud/trace-agentProperties
type
readonly type: SpanType;The current span type. See SpanType for more information.
Methods
addLabel(key, value)
addLabel(key: string, value: any): void;Adds a key-value pair as a label to the trace span. The value will be converted to a string if it is not already, and both the key and value may be truncated according to the user's configuration.
| Parameters | |
|---|---|
| Name | Description |
key |
string
The label's key. |
value |
any
The label's value. |
| Returns | |
|---|---|
| Type | Description |
void | |
endSpan(timestamp)
endSpan(timestamp?: Date): void;Ends the span. This method should only be called once.
| Parameter | |
|---|---|
| Name | Description |
timestamp |
Date
A custom span end time; defaults to the time when endSpan was called if not provided. |
| Returns | |
|---|---|
| Type | Description |
void | |
getTraceContext()
getTraceContext(): TraceContext | null;Gets the current trace context, or null if it can't be retrieved. The trace context.
| Returns | |
|---|---|
| Type | Description |
TraceContext | null | |