feat: Allow Feast UI to be spun up with CLI command: feast ui

.github/workflows/publish.yml

@@ -166,6 +166,11 @@ jobs:
         os: [ ubuntu-latest, macos-10.15 ]
     steps:
       - uses: actions/checkout@v2
+      - name: Setup Node
+          uses: actions/setup-node@v2
+          with:
+            node-version: '17.x'
+            registry-url: 'https://registry.npmjs.org'
       - name: Build wheels
         uses: pypa/[email protected]
         env:
@@ -183,6 +188,7 @@ jobs:
             make install-protoc-dependencies
             make install-go-proto-dependencies
             make install-go-ci-dependencies
+            make build-ui
 
       - uses: actions/upload-artifact@v2
         with:
@@ -202,12 +208,18 @@ jobs:
         with:
           python-version: "3.10"
           architecture: x64
-      - name: Install dependencies
+      - name: Setup Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: '17.x'
+          registry-url: 'https://registry.npmjs.org'
+      - name: Build and install dependencies
         run: |
           pip install -U pip setuptools wheel twine
           make install-protoc-dependencies
           make install-go-proto-dependencies
           make install-go-ci-dependencies
+          make build-ui
       - name: Build
         run: |
           python3 setup.py sdist bdist_wheel

.gitignore

@@ -200,6 +200,8 @@ go/protos/
 
 
 # Feast UI dependencies
+sdk/python/feast/ui/node_modules
+sdk/python/feast/ui/build
 ui/node_modules
 ui/.pnp
 ui/.pnp.js

CONTRIBUTING.md

@@ -89,7 +89,12 @@ source venv/bin/activate
 pip install --upgrade pip
 ```
 
-4. Install development dependencies for Feast Python SDK / CLI
+4. (Optional): Install Node & Yarn. Then run the following to build Feast UI artifacts for use in `feast ui`
+```
+make build-ui
+```
+
+5Install development dependencies for Feast Python SDK / CLI
 ```sh
 pip install -e ".[dev]"
 ```

Makefile

@@ -261,3 +261,9 @@ build-sphinx: compile-protos-python
 
 build-templates:
 	python infra/scripts/compile-templates.py
+
+# Web UI
+
+# Note: requires node and yarn to be installed
+build-ui:
+	cd $(ROOT_DIR)/sdk/python/feast/ui && yarn install && npm run build --omit=dev

sdk/python/.gitignore

@@ -115,4 +115,4 @@ dmypy.json
 .pyre/
 
 .vscode/*
-playground
+playground

sdk/python/feast/cli.py

@@ -109,6 +109,19 @@ def version():
     print(f'Feast SDK Version: "{pkg_resources.get_distribution("feast")}"')
 
 
+@cli.command()
+@click.pass_context
+def ui(ctx: click.Context):
+    """
+    Shows the Feast UI over the current directory
+    """
+    repo = ctx.obj["CHDIR"]
+    cli_check_repo(repo)
+    store = FeatureStore(repo_path=str(repo))
+    repo_config = load_repo_config(repo)
+    store.serve_ui(registry_dump(repo_config, repo_path=repo))
+
+
 @cli.command()
 @click.pass_context
 def endpoint(ctx: click.Context):
@@ -475,7 +488,7 @@ def registry_dump_command(ctx: click.Context):
     cli_check_repo(repo)
     repo_config = load_repo_config(repo)
 
-    registry_dump(repo_config, repo_path=repo)
+    click.echo(registry_dump(repo_config, repo_path=repo))
 
 
 @cli.command("materialize")

sdk/python/feast/feature_store.py

@@ -39,7 +39,7 @@
 from google.protobuf.timestamp_pb2 import Timestamp
 from tqdm import tqdm
 
-from feast import feature_server, flags, flags_helper, utils
+from feast import feature_server, flags, flags_helper, ui_server, utils
 from feast.base_feature_view import BaseFeatureView
 from feast.data_source import DataSource
 from feast.diff.infra_diff import InfraDiff, diff_infra_protos
@@ -1985,6 +1985,16 @@ def get_feature_server_endpoint(self) -> Optional[str]:
         """Returns endpoint for the feature server, if it exists."""
         return self._provider.get_feature_server_endpoint()
 
+    @log_exceptions_and_usage
+    def serve_ui(self, registry_dump: str) -> None:
+        """Start the UI server locally"""
+        warnings.warn(
+            "The Feast UI is an experimental feature. "
+            "We do not guarantee that future changes will maintain backward compatibility.",
+            RuntimeWarning,
+        )
+        ui_server.start_server(self, registry_dump, self.config.project)
+
     @log_exceptions_and_usage
     def serve_transformations(self, port: int) -> None:
         """Start the feature transformation server locally on a given port."""

sdk/python/feast/repo_operations.py

@@ -281,14 +281,13 @@ def teardown(repo_config: RepoConfig, repo_path: Path):
 
 
 @log_exceptions_and_usage
-def registry_dump(repo_config: RepoConfig, repo_path: Path):
+def registry_dump(repo_config: RepoConfig, repo_path: Path) -> str:
     """For debugging only: output contents of the metadata registry"""
     registry_config = repo_config.get_registry_config()
     project = repo_config.project
     registry = Registry(registry_config=registry_config, repo_path=repo_path)
     registry_dict = registry.to_dict(project=project)
-
-    click.echo(json.dumps(registry_dict, indent=2, sort_keys=True))
+    return json.dumps(registry_dict, indent=2, sort_keys=True)
 
 
 def cli_check_repo(repo_path: Path):

sdk/python/feast/ui/README.md

@@ -0,0 +1,33 @@
+# Example Feast UI App
+
+This is an example React App that imports the Feast UI module and relies on a "/projects-list" endpoint to get projects.
+
+See the module import in `src/index.js`. The main change this implements on top of a vanilla create-react-app is adding:
+
+```tsx
+import ReactDOM from "react-dom";
+import FeastUI from "@feast-dev/feast-ui";
+import "@feast-dev/feast-ui/dist/feast-ui.css";
+
+ReactDOM.render(
+  <React.StrictMode>
+    <FeastUI
+      feastUIConfigs={{
+        projectListPromise: fetch("http://0.0.0.0:8888/projects-list", {
+          headers: {
+            "Content-Type": "application/json",
+          },
+        }).then((res) => {
+          return res.json();
+        })
+      }}
+    />
+  </React.StrictMode>,
+  document.getElementById("root")
+);
+```
+
+It is used by the `feast ui` command to scaffold a local UI server. The feast python package bundles in resources produced from `npm run build --omit=dev
+
+
+**Note**: yarn start will not work on this because of the above dependency.