T30699 pubsub #7
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Add redis container to docker-compose with a local data directory in docker/redis/data mounted into the container. Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Add the aioredis package to requirements.txt. This will be used to perform async i/o with Redis. Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Rename the get_current_active_user() function with a shorter name get_user() to make it easier to use it in authenticated queries. Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Add api.pubsub.PubSub class to subscribe / listen / unsubscribe /
publish plain text events via the Redis pub/sub mechanism. Add
authenticated query handlers in api.main to keep track of which
channels each user has subscribed to.
Here's an example, in a first terminal:
$ curl -H 'Authorization: Bearer <token>' -X POST http://localhost:8001/subscribe/hey
$ curl -H 'Authorization: Bearer <token>' http://localhost:8001/listen/hey
Then in a second one, to send a message "Hello":
$ curl -H 'Authorization: Bearer <token>' -X POST http://localhost:8001/publish/hey/Hello
The first terminal will then receive this:
{"type":"message","pattern":null,"channel":"hey","data":"Hello"}
Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Add the cloudevents package to requirements.txt. This will be used to wrap messages used in the Pub/Sub mechanism. See more details here: https://cloudevents.io/ Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Use CloudEvents to format the messages published to the pub/sub. They get converted to JSON in plain text, so no changes are required on the listening end. Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Add api.client as a module which can be run as a command-line tool to send and receive CloudEvents via the pub/sub API. Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Add a section to README.md about the pub/sub part of the API and the reference client script. Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
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Add basic pub/sub interface to the API using CloudEvents.