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@lexnv lexnv commented Mar 21, 2024

This PR ensures that the server accepts at least 4 transactionWatch subscriptions, similar to the transactionBroadcast API.

While at it, have defined the error codes returned by this API

  • -38000 - more than 4 transactionWatch subscriptions are created (identical error code with chainHead_follow)
  • -32602 - Invalid Parameter from the rpc spec

Have also added a mention wrt invalid decoded transaction bytes in the Invalid event.

cc @paritytech/subxt-team @tomaka

lexnv added 3 commits March 21, 2024 13:00
Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
jsdw
jsdw previously approved these changes Mar 21, 2024
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LGTM; is consistent with chainHead_follow :)

Co-authored-by: James Wilson <james@jsdw.me>
@jsdw jsdw merged commit bef3ab5 into main Apr 2, 2024
@jsdw jsdw deleted the lexnv/limit-tx-watch branch April 2, 2024 16:41
@tomaka
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tomaka commented Apr 3, 2024

This can't be guaranteed, because transactions stay in the pool when a JSON-RPC client disconnects.

github-merge-queue bot pushed a commit to paritytech/polkadot-sdk that referenced this pull request Apr 9, 2024
This PR ensures that the transaction API generates an `Invalid` events
for transaction bytes that fail to decode.

The spec mentioned the `Invalid` event at the jsonrpc error section,
however this spec PR makes things clearer:
- paritytech/json-rpc-interface-spec#146

While at it have discovered an inconsistency with the generated events.
The drop event from the transaction pool was incorrectly mapped to the
`invalid` event.

Added tests for the API stabilize the API soon:
- paritytech/json-rpc-interface-spec#144


Closes: #3083


cc @paritytech/subxt-team

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
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4 participants