Adds Fusion Documentation (#7789)

* Adds Fusion Documentation

* Fixed lint

* Update image

website/src/docs/docs.json

@@ -148,6 +148,45 @@
       }
     ]
   },
+  {
+    "path": "fusion",
+    "title": "Fusion",
+    "description": "Federated GraphQL Gateway",
+    "metaDescription": "Fusion is a powerful, open-source GraphQL gateway that helps developers to build a unified API for their services.",
+    "latestStableVersion": "v14",
+    "versions": [
+      {
+        "path": "v14",
+        "title": "v14",
+        "items": [
+          {
+            "path": "index",
+            "title": "Overview"
+          },
+          {
+            "path": "quick-start",
+            "title": "Quick Start"
+          },
+          {
+            "path": "entities",
+            "title": "Entities"
+          },
+          {
+            "path": "lookups",
+            "title": "Lookups"
+          },
+          {
+            "path": "devops",
+            "title": "DevOps"
+          },
+          {
+            "path": "cli",
+            "title": "CLI"
+          }
+        ]
+      }
+    ]
+  },
   {
     "path": "hotchocolate",
     "title": "Hot Chocolate",
@@ -381,16 +420,6 @@
               }
             ]
           },
-          {
-            "path": "fusion",
-            "title": "Fusion",
-            "items": [
-              {
-                "path": "index",
-                "title": "Overview"
-              }
-            ]
-          },
           {
             "path": "performance",
             "title": "Performance",
@@ -719,16 +748,6 @@
               }
             ]
           },
-          {
-            "path": "fusion",
-            "title": "Fusion",
-            "items": [
-              {
-                "path": "index",
-                "title": "Overview"
-              }
-            ]
-          },
           {
             "path": "performance",
             "title": "Performance",

website/src/docs/fusion/v14/cli.md

@@ -0,0 +1,136 @@
+---
+title: "Fusion CLI Documentation"
+---
+
+The Fusion Command Line Interface is a tool designed to assist the development and management of APIs using Fusion. This documentation provides a comprehensive guide to the Fusion CLI, covering installation, commands, options, and usage examples to help you effectively utilize the tool in your projects.
+
+## Introduction
+
+Fusion CLI is a command-line tool that assists developers in composing, packaging, and managing federated schemas for Fusion gateways.
+
+## Installation
+
+To install the Fusion CLI, ensure you have the .NET SDK installed on your machine. Then, install the CLI globally using the .NET tool command:
+
+```bash
+dotnet tool install -g HotChocolate.Fusion.CommandLine
+```
+
+This command installs the Fusion CLI globally, making it accessible from any directory in your command line.
+
+## Commands
+
+### `fusion compose`
+
+The `compose` command is used to create or update a Fusion gateway package (`.fgp` file) by composing multiple APIs packages (`.fsp` files). This package is then used by the Fusion gateway to serve a unified schema.
+
+**Description:**
+
+Composes multiple APIs into a Fusion gateway package.
+
+**Usage:**
+
+```bash
+fusion compose [options]
+```
+
+**Options:**
+
+- `-p`, `--package`, `--package-file <package-file>` (REQUIRED): Specifies the path to the Fusion gateway package file (`gateway.fgp`). This file will be created or updated by the compose command.
+- `-s`, `--subgraph`, `--subgraph-package-file <subgraph-package-file>`: Specifies the path to a subgraph package file (`.fsp`) to include in the composition. This option can be used multiple times to add multiple subgraphs.
+- `--package-settings`, `--package-settings-file`, `--settings <package-settings-file>`: Specifies the path to a Fusion package settings file (`fusion-subgraph.json`). This file contains additional settings for the composition.
+- `-w`, `--working-directory <working-directory>`: Sets the working directory for the command. Defaults to the current executing directory.
+- `--enable-nodes`: Enables the Node interface feature in the gateway, allowing it to understand `node(id: ...)` queries.
+- `-r`, `--remove <subgraph-name>`: Removes a specified subgraph from the existing composition in the gateway package.
+- `-?`, `-h`, `--help`: Shows help and usage information for the command.
+
+---
+
+### `fusion subgraph`
+
+The `subgraph` command group contains commands related to subgraph management, such as packaging subgraphs for composition.
+
+#### `fusion subgraph pack`
+
+The `pack` command creates a Fusion subgraph package (`.fsp` file) from a subgraph's schema and configuration. This package is then used in the composition process.
+
+**Description:**
+
+Creates a Fusion subgraph package from a subgraph's schema and configuration files.
+
+**Usage:**
+
+```bash
+fusion subgraph pack [options]
+```
+
+**Options:**
+
+- `-p`, `--package`, `--package-file <package-file>`: Specifies the output path for the subgraph package file (`YourService.fsp`). Defaults to `<SourceName>.fsp` if not specified.
+- `-s`, `--schema`, `--schema-file <schema-file>`: Specifies the path to the subgraph's schema file (`schema.graphql`).
+- `-c`, `--config`, `--config-file <config-file>`: Specifies the path to the subgraph's configuration file (`subgraph-config.json`).
+- `-e`, `--extension`, `--extension-file <extension-file>`: Specifies paths to any schema extension files to include. This option can be used multiple times for multiple files.
+- `-w`, `--working-directory <working-directory>`: Sets the working directory for the command. Defaults to the current executing directory.
+- `-?`, `-h`, `--help`: Shows help and usage information for the command.
+
+## Examples
+
+This section provides practical examples of using the Fusion CLI commands in common scenarios.
+
+### Example 1: Packing a Downstream Service
+
+Suppose you have a subgraph named `Products` with a schema file `schema.graphql` and a configuration file `subgraph-config.json`. To create a subgraph package, navigate to the subgraph's directory and run:
+
+```bash
+fusion subgraph pack
+```
+
+In case your schema and configuration files have different names or are located in a different directory, you can specify them using the `-s` and `-c` options:
+
+```bash
+fusion subgraph pack -s other-schema.graphql -c config.json
+```
+
+This command generates a `Products.fsp` package file in the current directory.
+
+### Example 2: Composing a Gateway Package
+
+To compose a Fusion gateway package from multiple subgraph packages, use the `compose` command. For example, to compose the `Products` and `Orders` subgraphs into a gateway package named `gateway.fgp`, run:
+
+```bash
+fusion compose -p gateway.fgp -s ../Products/Products.fsp -s ../Orders/Orders.fsp
+```
+
+This command creates or updates the `gateway.fgp` file with the composed schema from both subgraphs.
+
+### Example 3: Removing a Downstream Service from the Composition
+
+If you need to remove the `Orders` subgraph from an existing gateway package, use the `--remove` option:
+
+```bash
+fusion compose -p gateway.fgp -r Orders
+```
+
+This command updates `gateway.fgp`, removing the `Orders` subgraph from the composition.
+
+### Example 4: Enabling Node Interface Support
+
+To enable the Node interface feature in your gateway, allowing it to handle `node` queries, include the `--enable-nodes` flag during composition:
+
+```bash
+fusion compose -p gateway.fgp -s ../Products/Products.fsp --enable-nodes
+```
+
+### Example 5: Specifying Working Directory
+
+If your schema and configuration files are located in a different directory, you can specify the working directory using `-w`:
+
+```bash
+fusion subgraph pack -s schema.graphql -c subgraph-config.json -w /path/to/subgraph
+```
+
+## Additional Resources
+
+- **Fusion Documentation:** Explore the [official Fusion documentation](/docs/fusion/v14) for in-depth guides and references.
+- **Fusion Quick Start Guide:** Get started with Fusion by following the [Quick Start Guide](/docs/fusion/v14/quick-start).
+- **ChilliCream Community:** Join the [ChilliCream community](https://slack.chillicream.com) to ask questions, share experiences, and contribute to the project.