Workflow parameter types

[Lieferer]

Hi,

I´m struggeling with input parameters for a workflow. I set a parameter as object with a default value:

command:
type: object
required: true
default: { "command": "Shutdown" }

It is a JSON command that has been provided when running the workflow. This is not working and when clicking on run in GUI, the command field is always empty and does not show the default value. Beside this, the WF is failing. I tried to set the obejct as { "command": "Shutdown" }, { "command": "Shutdown" }, "command": "Shutdown", command=Shutdown but nothing works. What is the correct notation when using objects as parameter types?

[nzlosh]

As far as I know YAML doesn't like having : in naked strings, so you will need to use single quotes ' around the string like so: default: '{ "command": "Shutdown" }'. You could use double quotes around the YAML string, but that requires escaping the JSON double quotes, which is painful and messy.

[Lieferer]

I tried this and this is not working too. When entering a JSON string to the GUI command field, it fails with:

"message": "ValueError: Value "{'commandTemplateName': 'ShowMemoryUsage'}" must either be a string or None. Got "dict".",

[nzlosh]

Can you test from the CLI, my guess is it's a bug in the webui

[Lieferer]

I managed it when setting type to string and not to object.

[fdrab]

you can try to write the default object down in YAML notation instead of JSON:

default:
  command: Shutdown

[fdrab]

failing the above, you can also try multiline yaml:

default: >-
  {"command": "Shutdown"}

[Lieferer]

As parameters with object types always show {} as internal default when using the GUI, only deleting the {} while executing the action will reveal the default that is set in the parameter. Fixing the default {} will fix the whole issue. I will log a bug.

[Lieferer]

Bug in GUI when setting param type to object. Default values are not showing up in GUI. When using string type, it´s working as expected.

[fdrab]

pls log a bug in st2web repo

[Lieferer]

done, issue 1037 created