Basically, you need to use

.apply()

to resolve

name

to it’s fundamental type (i.e. string) and then use

endswith

, etc.

fwiw my Pulumi repo has >4k LOC, I use outputs 😉

if it helps, this is the actual code:

for idx, name in enumerate(
            [self.domain_name] + self.subject_alternative_names
        ):
            zone = next(filter(lambda z: name.endswith(z["name"]), self.route53_zones))
            options = self.resource.domain_validation_options[idx]
            validation_records.append(
                Record.factory(
                    resource_name=f"{name}-validation",
                    stack_name=self.component.stack_name,
                    dns_name=options.resource_record_name,
                    zone_id=zone["id"],
                    type=options.resource_record_type,
                    records=[options.resource_record_value],
                    ttl=60,
                    allow_overwrite=True,
                    tags=self.tags,
                    opts=ResourceOptions(parent=self.component),
                ).fqdn
            )