Configuration is broken for some reason… I am trying to launch an Architect flow programmatically from my gRPC event processing service. The goal is to trigger a flow based on webhook events.
Here is my request payload:
{
"flowId": "8675309",
"data": { "userId": "123" }
}
I receive a 400 error.
“Invalid request body. Missing required field: flowId”
Why is this failing? The ID is present.
I’d suggest checking out at the actual Python SDK structure for flow execution. The 400 error claiming flowId is missing despite being in your JSON payload is a classic symptom of sending raw JSON directly to the endpoint instead of using the SDK’s request object wrapper, or hitting an endpoint that expects a different schema version. In Genesys Cloud, launching a flow via API isn’t just a simple POST with a flat object; it requires a specific FlowExecutionRequest structure. Your gRPC service is likely bypassing the SDK’s serialization logic, causing the API gateway to reject the malformed request before it even parses the body correctly.
Stop sending raw JSON from your gRPC service. Use the PureCloud Python SDK to construct the request properly. This handles the serialization, OAuth token injection, and correct endpoint routing. Here is the working pattern:
from platformclientv2 import Configuration, FlowApi, FlowExecutionRequest
from platformclientv2.rest import ApiException
# Initialize configuration with client credentials
config = Configuration()
config.host = 'https://api.mypurecloud.com'
# Use your OAuth2 client credentials flow here
config.access_token = 'YOUR_ACCESS_TOKEN'
flow_api = FlowApi(configuration=config)
# Construct the request object explicitly
request = FlowExecutionRequest(
flow_id='8675309',
data={'userId': '123'}
)
try:
# Execute the flow
response = flow_api.post_flows_executions(request_body=request)
print(f"Flow execution ID: {response.execution_id}")
except ApiException as e:
print(f"Exception when calling FlowApi->post_flows_executions: {e}")
# Check e.body for detailed validation errors
Ensure your OAuth scope includes flow:execute. If you must use raw HTTP, verify the Content-Type header is application/json and the payload matches the FlowExecutionRequest schema exactly, including nested data fields. The SDK handles this silently, which is why your raw attempt fails.