feat(methods): add canvases.create and canvases.getContent examples (#336)

Co-authored-by: Claude <svc-devxp-claude@slack-corp.com>

Author: zimeg

methods/README.md

@@ -34,6 +34,11 @@ $ slack run chat_post_message.py  # Make the request
 
 - **[blocks.validate](https://docs.slack.dev/reference/methods/blocks.validate)**: Validates blocks, messages, and views Block Kit JSON payloads. [Implementation](./src/blocks/blocks_validate.py).
 
+### canvases
+
+- **[canvases.create](https://docs.slack.dev/reference/methods/canvases.create)**: Create canvas for a user. [Implementation](./src/canvases/canvases_create.py).
+- **[canvases.getContent](https://docs.slack.dev/reference/methods/canvases.getContent)**: Get the content of a canvas as markdown (default) or HTML. [Implementation](./src/canvases/canvases_get_content.py).
+
 ### chat
 
 - **[chat.postMessage](https://docs.slack.dev/reference/methods/chat.postmessage)**: Sends a message to a channel. [Implementation](./src/chat/chat_post_message.py).

methods/src/canvases/.slack/.gitignore

@@ -0,0 +1,2 @@
+apps.dev.json
+cache/

methods/src/canvases/.slack/config.json

@@ -0,0 +1,6 @@
+{
+  "manifest": {
+    "source": "local"
+  },
+  "project_id": "00000000-0000-0000-0000-000000000000"
+}

methods/src/canvases/.slack/hooks.json

@@ -0,0 +1,5 @@
+{
+  "hooks": {
+    "get-hooks": "python3 -m slack_cli_hooks.hooks.get_hooks"
+  }
+}

methods/src/canvases/__init__.py

@@ -0,0 +1,21 @@
+import os
+
+from slack_sdk import WebClient
+
+# Read a token from an environment variable
+token = os.environ.get("SLACK_TOKEN")
+
+# Initialize
+client = WebClient(token=token)
+
+# Call the canvases.create method
+response = client.canvases_create(
+    title="Your Brilliant Title",
+    document_content={
+        "type": "markdown",
+        "markdown": "> standalone canvas!",
+    },
+)
+
+# Inspect the response
+print(response)

methods/src/canvases/canvases_create.py

@@ -0,0 +1,18 @@
+import os
+
+from slack_sdk import WebClient
+
+# Read a token from an environment variable
+token = os.environ.get("SLACK_TOKEN")
+
+# Initialize
+client = WebClient(token=token)
+
+# Call the canvases.getContent method
+response = client.canvases_getContent(
+    canvas_id="F1234ABCD",
+    content_type="markdown",
+)
+
+# Inspect the response
+print(response)

methods/src/canvases/canvases_get_content.py

@@ -0,0 +1,22 @@
+{
+  "display_information": {
+    "name": "Slack API Methods",
+    "description": "Example implementations to call \"canvases\" methods"
+  },
+  "features": {
+    "bot_user": {
+      "display_name": "Slack API Methods",
+      "always_online": true
+    }
+  },
+  "oauth_config": {
+    "scopes": {
+      "bot": ["canvases:read", "canvases:write"]
+    }
+  },
+  "settings": {
+    "org_deploy_enabled": true,
+    "socket_mode_enabled": false,
+    "token_rotation_enabled": false
+  }
+}