Event Store

Stream

Append an event to a stream

EventStoreDB media types

EventStoreDB supports a custom media type for posting events,

• application/vnd.eventstore.events+json or
• application/vnd.eventstore.events+xml.

The format represents data with the following jschema (eventId must be a UUID).

[
    {
      "eventId"    : "string",
      "eventType"  : "string",
      "data"       : "object",
      "metadata"   : "object"
    }
]

Model definition in feedgenerator:

This will be used when save platformEvents:

public class CreatePlatformEventRequest
{
    public string EventId { get; set; }
    public string EventType { get; set; }
    public PlatformEvent Data { get; set; }
}

This will be used when save domainEvents:

Model definition in feedgeneratorUtil:

internal class CreateEventRequest
{
    public object Data { get; set; }
    public object Metadata { get; set; }
    public string EventId { get; set; }
    public string EventType { get; set; }
}

get stream

Invoke-restmethod -method GET -uri https://eventstore-test.pwcias.local:2114/streams/%24ce-assignee/0/forward/20?embed=rich -Headers @{Authorization="Basic YWRtaW46d2FuZ3lhbg=="}|convertto-json -depth 10

Parameter	Value	Meaning
embedembed	NoneContent
embedembed	ContentRich
embed	Rich
embed	Body
embed	PrettyBody	pretty to read
embed	TryHarder

Projection

Projections is an EventStoreDB subsystem that lets you append new events or link existing events to streams in a reactive manner.