JSONL)

Reads from or writes to a local file. Useful as a one-shot source/sink for migrating data in or out of the other connectors.

URL format

file:///absolute/path/to/file?format=<normal|json|text|raw|csv>

The path comes from the URI path itself (file:///...), not a query param. format defaults to normal (the full message serialized as JSON).

Load a CSV file into MongoDB, one-shot (first row = header):

mq-bridge-app copy --drain \
  --from file:///data/customers.csv?format=csv \
  --to 'mongodb://localhost?database=app&collection=customers'

Export a table to JSONL, one-shot:

mq-bridge-app copy --drain \
  --from postgres://user:pass@localhost/app?table=orders \
  --to file:///data/orders.jsonl?format=json

Tail a file as it grows (broadcast/subscribe mode), continuous:

mq-bridge-app copy \
  --from file:///var/log/app/events.log?mode=subscribe \
  --to kafka://kafka.local:9092?topic=app-events

Option	Purpose
`format`	`normal`, `json`, `text`, `raw`, or `csv`.
`delimiter`	Message delimiter. Defaults to newline.
`mode`	Consumer only: `consume` (from start), `subscribe` (tail from end), or persistent offset-tracked modes.
`compression`	Compress/decompress each batch: `none` (default), `gzip`, `lz4`, `zstd` (needs the `compression` build feature). A source must declare the same codec the file was written with. See Compression.

Full field list: reference/file.md.