Reactive Flows
Reactive Flows is a demo project showing a Reactive web app built with:
- Akka Actors
- Akka HTTP
- Akka SSE (server-sent events)
- Akka Distributed Data
- Akka Cluster Sharding
- Akka Persistence
- AngularJS
- Cassandra
- Scala
- etcd
Usage
- Important: Reactive Flows makes use of server-sent events and advanced JavaScript which aren't available for all browsers, so make sure to use Firefox > 25.0, Safari > 7.1 or Chrome > 45.0
- To run a single node, simply execute
reStart
in an sbt session; you can shutdown the app withreStop
- To run multiple nodes, build a Docker image with
docker:publishLocal
and execute the scriptbin/run-reactive-flows.sh
without an argument or a number from [0, 10) - As the names and labels of the flows aren't persisted, you have to create them after the app has started; see below examples
- Important: Reactive Flows uses ConstructR for initializing the cluster; make sure etcd is started and available, e.g. via
bin/run-etcd.sh
- Important: Reactive Flows uses the Cassandra plugin for Akka Persistence; make sure Cassandra is started and available under the configured contact point, e.g. via
bin/run-cassandra.sh
REST API Examples
curl -s 127.0.0.1:8000/flows | jq
curl -s -H 'Content-Type: application/json' -d '{ "label": "Akka" }' 127.0.0.1:8000/flows | jq
curl -s -H 'Content-Type: application/json' -d '{ "label": "AngularJS" }' 127.0.0.1:8000/flows | jq
curl -s -H 'Content-Type: application/json' -d '{ "text": "Akka rocks!" }' 127.0.0.1:8000/flows/akka/messages | jq
curl -s '127.0.0.1:8000/flows/akka/messages?count=99' | jq
curl -s -N 127.0.0.1:8000/message-events
curl -s -H 'Content-Type: application/json' -d '{ "text": "Akka and AngularJS are a great combination!" }' 127.0.0.1:8000/flows/akka/messages | jq
curl -s -H 'Content-Type: application/json' -d '{ "text": "AngularJS rocks!" }' 127.0.0.1:8000/flows/angularjs/messages | jq
curl -s -X DELETE 127.0.0.1:8000/flows/akka
Contribution policy
Contributions via GitHub pull requests are gladly accepted from their original author. Along with any pull requests, please state that the contribution is your original work and that you license the work to the project under the project's open source license. Whether or not you state this explicitly, by submitting any copyrighted material via pull request, email, or other means you agree to license the material under the project's open source license and warrant that you have the legal authority to do so.
License
This code is open source software licensed under the Apache 2.0 License.