StackStorm / StackStorm/st2

unable to cast a string to a bool inside of an alias using a cast filter.

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bug
Dominant language
Python
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Description

Example: foo of {{bar}} {{baz|bool}} (https://stackstorm-community.slack.com/archives/community/p1450884020009057), instead having to rely on a default. Slack throws a 500 error. https://stackstorm-community.slack.com/archives/community/p1450884286009064). Workaround is to simply provide a sane default ({{baz=False}}).

Reported by @jjm in #stackstorm-community

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Research direction

Start by reproducing the reported template expression foo of {{bar}} {{baz|bool}} and compare it with the working {{baz=False}} default. Trace the cast filter and alias handling from that reproduction; done means a string can be cast to a bool inside an alias without a Slack 500 error, while the existing default behavior remains valid.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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