> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-parallel-read-in-order-multi-part.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> Documentation for the JSONStringsEachRowWithProgress format

# JSONStringsEachRowWithProgress

<h2 id="description">
  Description
</h2>

Differs from `JSONEachRow`/`JSONStringsEachRow` in that ClickHouse streams each event as a separate JSON object and also yields progress information.

All field values are serialized as strings (including complex types): for example `arr` is emitted as `"arr":"[0,1]"`, not as a nested JSON array. Scalars are likewise stringified (`"num":"42"`).

The top-level object kinds match [`JSONEachRowWithProgress`](/reference/formats/JSON/JSONEachRowWithProgress) (`meta`, `row`, `progress`, `totals`/`min`/`max`, `rows_before_limit_at_least`, `rows_before_aggregation`, and top-level `exception`). Follow that page for the full stream contract: a `progress` object may arrive before `meta`; `rows_before_limit_at_least` is a lower estimate when the query contains `LIMIT` (not proof rows were dropped); `exception` is only written on the HTTP path with `http_write_exception_in_output_format=1`.

<h2 id="example-usage">
  Example usage
</h2>

```json theme={null}
{"meta":[{"name":"num","type":"UInt8"},{"name":"str","type":"String"},{"name":"arr","type":"Array(UInt8)"}]}
{"row":{"num":"42","str":"hello","arr":"[0,1]"}}
{"row":{"num":"43","str":"hello","arr":"[0,1,2]"}}
{"row":{"num":"44","str":"hello","arr":"[0,1,2,3]"}}
{"progress":{"read_rows":"3","read_bytes":"24","written_rows":"0","written_bytes":"0","total_rows_to_read":"3"}}
```

<h2 id="format-settings">
  Format settings
</h2>