Merge pull request #1545 from macolso/update-label-ux

updating requirements on default label

Author: macolso

content/wasm-functions/using-key-value-store.md

@@ -6,16 +6,17 @@ enable_shortcodes = true
 ---
 
 - [About the Fermyon Wasm Functions Key Value Store](#about-the-fermyon-wasm-functions-key-value-store)
+  - [Key Value Limitations and Considerations](#key-value-limitations-and-considerations)
 - [Creating a New Spin Application](#creating-a-new-spin-application)
 - [Grant Key Value Store Permission](#grant-key-value-store-permission)
 - [Implementing the Spin Application](#implementing-the-spin-application)
 - [Testing the Spin Application](#testing-the-spin-application)
 - [Deploying to Fermyon Wasm Functions](#deploying-to-fermyon-wasm-functions)
 - [Next Steps](#next-steps)
 
-With Spin Key Value Store support in _Fermyon Wasm Functions_, you can persist non-relational data generated by your [Spin](https://spinframework.dev) application across application restarts and updates. _Fermyon Wasm Functions_ will provision and manage the key value store on your behalf, handling the heavy lifting for you. Spin Key Value Stores are isolated to a single application, and components cannot access the store unless explicitly granted permission. This capabilities-based security model ensures that only authorized components can interact with the data. To learn more about the Spin Key Value Store SDK, please visit the [API guide](https://spinframework.dev/v3/kv-store-api-guide).
+With Spin key value store support in _Fermyon Wasm Functions_, you can persist non-relational data generated by your [Spin](https://spinframework.dev) application across application restarts and updates. _Fermyon Wasm Functions_ will provision and manage the key value store on your behalf, handling the heavy lifting for you. Spin key value stores are isolated to a single application, and components cannot access the store unless explicitly granted permission. This capabilities-based security model ensures that only authorized components can interact with the data. To learn more about the Spin key value store SDK, please visit the [API guide](https://spinframework.dev/v3/kv-store-api-guide).
 
-As part of this tutorial, we will build a Spin application which leverages the Key Value Store provided by _Fermyon Wasm Functions_ for persistence. Once we have finished implementing the Spin app, we will run it locally using `spin up` for testing purposes, before we deploy it to _Fermyon Wasm Functions_ using the `spin aka deploy` command.
+As part of this tutorial, we will build a Spin application which leverages the key value store provided by _Fermyon Wasm Functions_ for persistence. Once we have finished implementing the Spin app, we will run it locally using `spin up` for testing purposes, before we deploy it to _Fermyon Wasm Functions_ using the `spin aka deploy` command.
 
 ## About the Fermyon Wasm Functions Key Value Store
 
@@ -45,7 +46,9 @@ $ npm install
 
 ## Grant Key Value Store Permission
 
-To enable a component in Spin to use a key value store, you need to [grant it the necessary permissions in the application's manifest](https://spinframework.dev/kv-store-api-guide#granting-key-value-store-permissions-to-components) (`spin.toml`) by adding a key-value store label. This both grants the component access to the key value store and signals _Fermyon Wasm Functions_ (FWF) to provision one for the application. In this tutorial, we’ll use the label "default", but you can choose any label that works best for you.
+To enable a component in Spin to use a key-value store, you need to [grant it the necessary permissions in the application's manifest](https://spinframework.dev/kv-store-api-guide#granting-key-value-store-permissions-to-components) (`spin.toml`).  To do this, add the label of the store to the component's `key_value_stores` in `spin.toml`.
+
+In _Fermyon Wasm Functions_, the only label allowed is `"default"` which signals to the platform to automatically provision a key value store for your Spin  application.
 
 ```toml
 [component.hello-key-value-store]
@@ -58,8 +61,8 @@ key_value_stores = [ "default" ]
 
 The `http-js` template generates a simple _Hello World_ example in `src/index.js`. As part of this section, we'll replace the existing code and use the HTTP router, provided by the template, to make our Spin application respond to the following HTTP request patterns:
 
-- `GET /get/:key` for retrieving a value from Key Value Store using the key provided as `:key`
-- `POST /set/:key` for storing a value provided as request payload using `:key` in Key Value Store
+- `GET /get/:key` for retrieving a value from key value store using the key provided as `:key`
+- `POST /set/:key` for storing a value provided as request payload using `:key` in key value store
 
 Let's start by bringing necessary capabilities from the `@fermyon/spin-sdk` package into scope and laying out the routes:
 
@@ -84,7 +87,7 @@ addEventListener('fetch', async (event) => {
 });
 ```
 
-Incoming `GET` requests at `/get/:key` will be handled by the `handleGetValue` function. As part of the function, we use the Key Value Store APIs provided by the Spin SDK for JavaScript (`import Kv from '@fermyon/spin-sdk'`):
+Incoming `GET` requests at `/get/:key` will be handled by the `handleGetValue` function. As part of the function, we use the key value store APIs provided by the Spin SDK for JavaScript (`import Kv from '@fermyon/spin-sdk'`):
 
 ```JavaScript
 function handleGetValue(key) {
@@ -97,19 +100,19 @@ function handleGetValue(key) {
         return new Response(null, { status: 404 });
     }
 
-    // load JSON data at key from Key Value Store
+    // load JSON data at key from key value store
     let found = store.getJson(key);
 
     // Return an HTTP 200 with corresponding HTTP header and payload
-    // if something was found at position key in the Key Value Store 
+    // if something was found at position key in the key value store 
     return new Response(
       JSON.stringify(found),
       { status: 200, headers: { "content-type": "application/json" } }
       );
 }
 ```
 
-Incoming `POST` requests at `/set/:key` will be handled by the `handleSetValue` function. After the request payload is validated, we use the Key Value Store APIs for persisting the data.
+Incoming `POST` requests at `/set/:key` will be handled by the `handleSetValue` function. After the request payload is validated, we use the key value store APIs for persisting the data.
 
 ```JavaScript
 function handleSetValue(key, requestBody) {
@@ -209,7 +212,7 @@ Move back to the first terminal instance and terminate your Spin application by
 
 ## Deploying to Fermyon Wasm Functions
 
-_Fermyon Wasm Functions_ takes care of provisioning a Key Value Store for you. That said, all we have to do is deploying our Spin application using the `spin aka deploy` command:
+_Fermyon Wasm Functions_ takes care of provisioning a key value store for you. That said, all we have to do is deploying our Spin application using the `spin aka deploy` command:
 
 <!-- @selectiveCpy -->