Struct JsonProgress 

pub struct JsonProgress { /* private fields */ }

JSON progress reporter — one compact JSON object per event to stderr.

Each event is serialised with serde_json and written as a single newline-terminated line:

{"event":"triggered","id":"abc123"}
{"event":"polling","elapsed_s":12,"status":"in_progress"}
{"event":"downloading"}
{"event":"done","bytes":12345}

The Done event is emitted (unlike HumanProgress) so JSON consumers can parse a complete event stream without relying solely on the final stdout object from the renderer.

Implementations

impl JsonProgress

pub fn new() -> Self

Creates a reporter writing to io::stderr().

pub fn with_writer(w: impl Write + 'static) -> Self

Creates a reporter writing to an arbitrary Write sink (used in tests).

Trait Implementations

impl Default for JsonProgress

fn default() -> Self

Returns the “default value” for a type.

impl ProgressReporter for JsonProgress

fn report(&mut self, event: &DumpEvent) -> Result<(), Diagnostic>

Emit a progress event.