Defining multiple types in schema (x OR type y)?

[DVAlexHiggs]

I have a YAML schema. I would like to allow a key in a Mapping to either have a List of Strings or just a String.

Something like:

Map(
    {"my_keys": 
        Map({"my_key_1": Str() | Seq(Str()),
             "my_key_2": Str()})
})

Which would validate the following YAML, either:

my_keys:
    my_key_1: "my_string"
    my_key_2: "my_other_string"

OR

my_keys:
    my_key_1: 
       - "my_string"
       - "my_second_string"
    my_key_2: "my_other_string"

How do I do this with StrictYAML? I could not find anything in the docs. Thanks!

[kputyra]

I think your example is just right. This is explained in the second how-to link from the Using StrictYAML section.

[DVAlexHiggs]

Thank you I don't know how I missed this!

[crdoconnor]

Reverse Str() | Seq(Str()) Use Seq(Str()) | Str() instead. Note that due to the overwhelming complexity of matching multiple complex types and reporting errors you can only "or" one complex type followed by one or more scalar types using | This looks like it shouldnt be a problem for you though.

…

On Sat, 16 Apr 2022, 15:21 Alex Higgs, ***@***.***> wrote: I have a YAML schema. I would like to allow a key in a Mapping to either have a List of Strings or just a String. Something like: Map({"my_key_1": Str() | Seq(Str()), "my_key_2": Str()}) — Reply to this email directly, view it on GitHub <#181>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABOJKNPEVUE6RNAF3KRXQ3TVFLEFVANCNFSM5TSOCVVQ> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[DVAlexHiggs]

Reverse Str() | Seq(Str()) Use Seq(Str()) | Str() instead. Note that due to the overwhelming complexity of matching multiple complex types and reporting errors you can only "or" one complex type followed by one or more scalar types using | This looks like it shouldnt be a problem for you though.

Thank you, much appreciated 👍