unable to have array of objects in a parameter

[AndyMoore111]

when using the aws.autoscaling_create_launch_configuration action the BlockDeviceMappings parameter requires an array of objects (list of dictionaries) as its argument

however in the st2 web interface if you try to add a dictionary it splits on ',' and throws errors:

  File "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/runners/python_action_wrapper.py", line 242, in <module>
    obj.run()
  File "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/runners/python_action_wrapper.py", line 154, in run
    output = action.run(**self._parameters)
  File "/opt/stackstorm/packs/aws/actions/run.py", line 20, in run
    return self.do_method(module_path, cls, action, **kwargs)
  File "/opt/stackstorm/packs/aws/actions/lib/action.py", line 140, in do_method
    resultset = getattr(obj, action)(**kwargs)
  File "/opt/stackstorm/virtualenvs/aws/lib/python2.7/site-packages/botocore/client.py", line 251, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/opt/stackstorm/virtualenvs/aws/lib/python2.7/site-packages/botocore/client.py", line 513, in _make_api_call
    api_params, operation_model, context=request_context)
  File "/opt/stackstorm/virtualenvs/aws/lib/python2.7/site-packages/botocore/client.py", line 566, in _convert_to_request_dict
    api_params, operation_model)
  File "/opt/stackstorm/virtualenvs/aws/lib/python2.7/site-packages/botocore/validate.py", line 270, in serialize_to_request
    raise ParamValidationError(report=report.generate_report())
botocore.exceptions.ParamValidationError: Parameter validation failed:
Invalid type for parameter BlockDeviceMappings[0], value: [{"DeviceName": "/dev/sda1", type: <type 'unicode'>, valid types: <type 'dict'>
Invalid type for parameter BlockDeviceMappings[1], value: "Ebs": {"DeleteOnTermination": true, type: <type 'unicode'>, valid types: <type 'dict'>
Invalid type for parameter BlockDeviceMappings[2], value: "VolumeType": "standard", type: <type 'unicode'>, valid types: <type 'dict'>
Invalid type for parameter BlockDeviceMappings[3], value: "VolumeSize": 40}}'], type: <type 'unicode'>, valid types: <type 'dict'>

Entered:

{"DeviceName": "/dev/sda1", "Ebs": {"DeleteOnTermination": true,"VolumeType": "standard","VolumeSize": 40}}

If I change the type to an object:

[{"DeviceName": "/dev/sda1", "Ebs": {"DeleteOnTermination": true,"VolumeType": "standard","VolumeSize": 40}}]

the validation says 'value is not an object'

[lakshmi-kannan]

@AndyMoore111 This seems like a bug in st2web. I opened a bug there StackStorm/st2web#352. Closing this.

[lakshmi-kannan]

Re-opening.

@AndyMoore111 says he cannot pass array of objects even via CLI.

[bigmstone]

The CLI handles this properly. If you set type to object you cannot feed it an array. Use type array for that. You can set the array content type to object using something similar to:

parameters:
  one_happy_param:
    type: array
    items:
      type: object
    required: false
    position: 0

The bug; however, does exist in st2web and is fixed in StackStorm/st2web#360.

My assumption is you attempted to change the input to object and then feed it an array which is will get rejected when it hits st2api's validation.