The second minor (feature adding) release of Eclipse Ditto 1 is here: 1.2.0.
It is API and binary compatible to Eclipse Ditto 1.0.0 and 1.1.0.
Compared to the latest minor release 1.1.0, the following changes, new features and bugfixes were added.
The main change of Ditto 1.2.0 is the now full support for QoS 1 (“at least once”) message processing.
Updated to running the Ditto Docker containers with the latest OpenJ9 0.21.0 (with OpenJDK 11).
Added config key for setting the max pool size for connections
The pool is used for mapping inbound and outbound messages in the connectivity service. It is configured
per connection in the attribute
To provide a meaningful max per-connection pool size, you can now configure a service-wide maximum
in the connectivity service using the key
ditto.connectivity.mapping.max-pool-size (or its corresponding
In connection header mappings as part of the placeholders, the new
fn:filter function may be used in order to remove the result of the
previous expression in the function pipeline unless the condition specified by the parameters is satisfied.
The new HTTP
/whoami may be called in order to find out which authorization subjects were resolved in
the HTTP call’s authentication. This can be e.g. useful to find out the used JWT subject which should be added to
Acknowledgements can now be configured to be requested for messages consumed by connection sources (acknowledgement requests) and can automatically be issued by targets to automatically issue acknowledgements for all published twin events, live commands and live messages that request them.
Acknowledgements for live messages/commands are now supported as well. Both requesting and issuing them, e.g. in order to acknowledge that a message was successfully received without directly responding to it.
Whenever a thing is now created, a JSON field
"_created" is now added containing the creation
date. This field can be selected via fields selection, as the already
"_modified" field can also be. The created date can also be used as part of
search RQL queries.
On modifying API calls to a thing, additional metadata can now be passed with the header field
"put-header". Documentation for this feature is still missing, but will be added soon after the 1.2.0 release.
Several bugs in Ditto 1.1.x were fixed for 1.2.0.
This is a complete list of the merged pull requests, including the fixed bugs.
Connections via AMQP 0.9.1 did not correctly resume message consumption after the broker was e.g. restarted.
Renamed config keys containing
If you configured any of the
blocklist entries with Ditto < 1.2.0, you’ll have to adjust your configuration