path params can be enums (#473)

Author: amaskara-dd

.generator/src/generator/templates/api.j2

@@ -307,7 +307,7 @@ impl {{ structName }} {
             local_configuration.get_operation_host(operation_id)
             {%- for name, parameter in operation|parameters if parameter.in == "path" %}, {{ name|variable_name }}=
             {%- if parameter.schema.type == "string" %}
-            datadog::urlencode({{ name|variable_name }}{% if not parameter.required %}.unwrap(){% elif parameter.schema.nullable %}.unwrap(){% endif %}{% if parameter.schema.type == "array" %}.join(",").as_ref(){% endif %}{% if parameter.schema.format == "uuid" %}.to_string(){% endif %})
+            datadog::urlencode({{ name|variable_name }}{% if not parameter.required %}.unwrap(){% elif parameter.schema.nullable %}.unwrap(){% endif %}{% if parameter.schema.type == "array" %}.join(",").as_ref(){% endif %}{% if parameter.schema.format == "uuid" or parameter.schema.enum %}.to_string(){% endif %})
             {%- else %}
             {{ name|variable_name }}{% if not parameter.required %}.unwrap(){% elif parameter.schema.nullable %}.unwrap(){% endif %}{% if parameter.schema.type == "array" %}.join(",").as_ref(){% endif %}
             {%- endif %}