Improve SDK, quickstart, token, features docs

docs/getting-started/quickstart.mdx

@@ -3,9 +3,7 @@ title: "Quickstart"
 description: "Start managing your developer secrets and configs with Infisical in 10 minutes."
 ---
 
-This example demonstrates how to store and inject environment variables from [Infisical Cloud](https://app.infisical.com) into your application.
-
-Note that the Infisical CLI is platform-agnostic and can inject environment variables across many tech stacks and frameworks.
+These examples demonstrate how to store and fetch environment variables from [Infisical Cloud](https://app.infisical.com) into your application.
 
 ## Set up Infisical Cloud
 
@@ -15,30 +13,100 @@ Note that the Infisical CLI is platform-agnostic and can inject environment vari
 
 ![project quickstart](../images/project-quickstart.png)
 
-## Set up the CLI
+## Fetch Secrets for Your App
 
-1. Follow the instructions to [install the CLI](/cli/overview).
+<Tabs>
+  <Tab title="CLI">
+  
+    The Infisical CLI is platform-agnostic and enables you to inject environment variables into your app across many tech stacks and frameworks.
 
-2. Initialize Infisical for your project.
+    ### Set up the CLI
 
-```bash
-# move to your project
-cd /path/to/project
+    1. Follow the instructions to [install our platform-agnostic CLI](/cli/overview).
 
-# initialize infisical
-infisical init
-```
+    2. Initialize Infisical for your project.
 
-## Start your app with environment variables injected
+    ```bash
+    # move to your project
+    cd /path/to/project
 
-```bash
-# inject environment variables into app
-infisical run -- [your application start command]
-```
+    # initialize infisical
+    infisical init
+    ```
 
-<Info>
-  Check out our [integrations](/integrations/overview) for injecting environment
-  variables into frameworks and platforms like Docker.
-</Info>
+    ### Start your app with environment variables injected
 
-Your app should be running with the environment variables injected.
+    ```bash
+    # inject environment variables into app
+    infisical run -- [your application start command]
+    ```
+
+    Your app should now be running with the environment variables injected.
+
+    Check out our [integrations](/integrations/overview) for injecting environment variables into frameworks and platforms like Docker.
+
+  </Tab>
+  <Tab title="SDK">
+    [Infisical SDKs](/sdks/overview) let your app fetch back secrets using an [Infisical Token](/getting-started/dashboard/token) that is scoped to a project and environment in Infisical. In this example, we demonstrate how to use the [Node SDK](/sdks/languages/node).
+    
+    ### Obtain an [Infisical Token](/getting-started/dashboard/token)
+    
+    Head to your project settings to create a token scoped to the project and environment you wish to fetch secrets from.
+
+    ![token add](../images/project-token-add.png)
+
+    ### Install the SDK
+
+    ```bash
+    npm install infisical-node --save
+    ```
+
+    ### Initialize the Infisical client
+
+    ```js
+    await infisical.connect({
+      token: "your_infisical_token",
+    });
+    ```
+
+    ### Get a value
+
+    ```js
+    const value = infisical.get("SOME_KEY");
+    ```
+
+    ### Example with Express
+
+    ```js
+    const express = require("express");
+    const port = 3000;
+    const infisical = require("infisical-node");
+
+    const main = async () => {
+      await infisical.connect({
+        token: "st.xxx.xxx",
+      });
+
+      // your application logic
+
+      app.get("/", (req, res) => {
+        res.send(`Howdy, ${infisical.get("NAME")}!`);
+      });
+
+      app.listen(port, async () => {
+        console.log(`App listening on port ${port}`);
+      });
+    };
+    ```
+
+    <Warning>
+      We do not recommend hardcoding your [Infisical
+      Token](/getting-started/dashboard/token). Setting it as an environment
+      variable would be best.
+
+  </Warning>
+  
+  Check out our [SDKs](/sdks/overview) for other language SDKs.
+
+</Tab>
+</Tabs>