docs: in memory state store component (#2534)

* in mem state

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* resolve issues

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* Developer-only

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* Update daprdocs/content/en/reference/components-reference/supported-state-stores/setup-inmemory.md

Co-authored-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* Update daprdocs/content/en/reference/components-reference/supported-state-stores/setup-inmemory.md

Co-authored-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* Update daprdocs/content/en/reference/components-reference/supported-state-stores/setup-inmemory.md

Co-authored-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* Update daprdocs/content/en/reference/components-reference/supported-state-stores/setup-inmemory.md

Co-authored-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* Update daprdocs/content/en/reference/components-reference/supported-state-stores/setup-inmemory.md

Co-authored-by: Hannah Hunter <94493363+hhunter-ms@users.noreply.github.com>

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

* add in memory comp

Signed-off-by: seeflood <zhou.qunli@foxmail.com>

Co-authored-by: Mark Fussell <markfussell@gmail.com>

daprdocs/content/en/reference/components-reference/supported-state-stores/setup-inmemory.md

@@ -0,0 +1,37 @@
+---
+type: docs
+title: "In Memory"
+linkTitle: "In Memory"
+description: "Detailed documentation on the In Memory state component"
+aliases:
+  - "/operations/components/setup-state-store/supported-state-stores/setup-inmemory/"
+---
+
+The In Memory state store component is useful for development purposes and works inside of a single machine boundary.
+
+{{% alert title="Warning" color="warning" %}}
+ This component **shouldn't be used for production**. It is developer only and will never be stable. If you come across a scenario and want to use it in production, you can submit an issue and discuss it with the community.
+
+{{% /alert %}}
+
+## Component format
+To setup in-memory state store, create a component of type `state.in-memory`. See [this guide]({{< ref "howto-get-save-state.md#step-1-setup-a-state-store" >}}) on how to create and apply a state store configuration.
+
+```yaml
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: <NAME>
+  namespace: <NAMESPACE>
+spec:
+  type: state.in-memory
+  version: v1
+  metadata: []
+```
+
+> Note: While in-memory does not require any specific metadata for the component to work, `spec.metadata` is a required field.
+
+## Related links
+- [Basic schema for a Dapr component]({{< ref component-schema >}})
+- Learn [how to create and configure state store components]({{< ref howto-get-save-state.md >}}) 
+- Read more about the [state management building block]({{< ref state-management >}})

daprdocs/data/components/state_stores/generic.yaml

@@ -64,6 +64,17 @@
     etag: false
     ttl: false
     query: false
+- component: In Memory
+  link: setup-inmemory
+  state: Developer-only
+  version: v1
+  since: "1.8"
+  features:
+    crud: true
+    transactions: true
+    etag: true
+    ttl: true
+    query: false
 - component: JetStream KV
   link: setup-jetstream-kv
   state: Alpha