fix integration samples

Author: WilliamBergamin

integration_tests/samples/oauth/oauth_v2.py

@@ -123,13 +123,19 @@ def oauth_callback():
 
 @app.route("/slack/events", methods=["POST"])
 def slack_app():
+    data = request.get_data()
     if not signature_verifier.is_valid(
-        body=request.get_data(),
+        body=data,
         timestamp=request.headers.get("X-Slack-Request-Timestamp"),
         signature=request.headers.get("X-Slack-Signature"),
     ):
         return make_response("invalid request", 403)
 
+    if data and b"url_verification" in data:
+        body = json.loads(data)
+        if body.get("type") == "url_verification" and "challenge" in body:
+            return make_response(body["challenge"], 200)
+
     if "command" in request.form and request.form["command"] == "/open-modal":
         try:
             enterprise_id = request.form.get("enterprise_id")
@@ -193,4 +199,4 @@ def slack_app():
 
     # python3 integration_tests/samples/oauth/oauth_v2.py
     # ngrok http 3000
-    # https://{yours}.ngrok.io/slack/oauth/start
+    # https://{yours}.ngrok.io/slack/install

integration_tests/samples/oauth/oauth_v2_async.py

@@ -135,13 +135,19 @@ async def oauth_callback(req: Request):
 
 @app.post("/slack/events")
 async def slack_app(req: Request):
+    data=req.body.decode("utf-8")
     if not signature_verifier.is_valid(
-        body=req.body.decode("utf-8"),
+        body=data,
         timestamp=req.headers.get("X-Slack-Request-Timestamp"),
         signature=req.headers.get("X-Slack-Signature"),
     ):
         return HTTPResponse(status=403, body="invalid request")
 
+    if data and "url_verification" in data:
+        body = json.loads(data)
+        if body.get("type") == "url_verification" and "challenge" in body:
+            return HTTPResponse(status=200, body=body["challenge"])
+
     if "command" in req.form and req.form.get("command") == "/open-modal":
         try:
             enterprise_id = req.form.get("enterprise_id")