ContextWithRequestID checks if current context has request id already and assign one if none found.

ErrMetadata returns a metadata constructed from error.

GenRequestID returns a unique request id.

GetContextID returns a request id assigned inside a context.

Metadata returns a basic metadata added a more detail metadata.

NewContext returns a context with built-in request id.

SetRequestID returns a context with assigned request id.

SetRequestIDFromMetadata returns a context with request id and context id value if they exists in metadata.

RequestID is a random generated string to identify each request.

DefaultConfig is a configuration to create: - Non JSON structured.

KV is wrapper for map[string]interface{}.