feat(python): add AsyncIterator interface to IggyConsumer #2552
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This adds a `.iter()` method for asynchronously iterating over Iggy messages from a consumer. Adding this method requires the consumer group to be initialized so `consumer_group` is made async and initialization is made upfront. `partition_id` is also exposed on `ReceiveMessage` to allow manual commit of offsets.
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| /// Asynchronously iterate over `ReceiveMessage`s. | ||
| /// | ||
| /// Returns an async iterator that raises `StopAsyncIteration` when no more messages are available | ||
| /// or a `PyRuntimeError` on failure. | ||
| /// | ||
| /// Note: This method does not currently support `AutoCommit.After`. | ||
| /// For `AutoCommit.IntervalOrAfter(datetime.timedelta, AutoCommitAfter)`, | ||
| /// only the interval part is applied; the `after` mode is ignored. | ||
| /// Use `consume_messages()` if you need commit-after-processing semantics. | ||
| #[gen_stub(override_return_type(type_repr="collections.abc.AsyncIterator[ReceiveMessage]", imports=("collections.abc")))] | ||
| fn iter_messages<'a>(&self) -> ReceiveMessageIterator { |
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This is the only part that has been changed by me (the function name + note doc). The rest is the same as the original PR.
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continuing the work of #2169