An example of writing events to EventStore with Go.
The application and the EventStore instance run on Docker.
The application is provisioned with docker-compose.
The application is compiled and run with Gulp on the application container.
Clone the repository to your preferred location.
Install Gulp into the eventposter directory as follows
$ cd eventposter
$ npm install --save-dev gulp
$ npm install --save-dev gulp-util
$ npm install --save-dev node-notifier
Navigate back to the application root directory and build & run as follows:
$ cd ..
$ sudo docker-compose up
If everything goes correctly:
- Eventstore will start up and log to the console.
- Gulp will compile and run the application.
- The application will insert 10,000 events into EventStore.
The messages logged to the console show as:
eventposter_1 | 2017/07/06 21:05:22 201 Created
The "201 Created" message is an HTTP Status Code, not an event counter!
Things can be terminated with Ctrl-C once the following message is displayed:
eventposter_1 | 2017/07/06 21:30:10 Have now created 10000 events
The final dialogue:
eventposter_1 | 2017/07/06 21:30:10 201 Created
eventposter_1 | 2017/07/06 21:30:10 Have now created 10000 events
^CGracefully stopping... (press Ctrl+C again to force)
Stopping godockereventstore_eventposter_1 ... done
Stopping godockereventstore_eventstore_1 ... done
$
$ sudo docker-compose build
The Docker images produced are:
| Image | Size |
|---|---|
| godockereventstore_eventposter | 339MB |
| godockereventstore_eventstore | 286MB |
[Some Dockerfile tweaking reduced the eventstore image from 427 to 286 MB.]
$ sudo docker-compose up