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i mean this case
my rule >>
{
"action": ["required", {"max_length":30}],
"some_obj": [{
"default":{},
"list_of_objects": {
"name": ["required",{"max_length":50}],
"value": ["required",{"max_length":300}]
}
}]
}
result should be >>
{
"action": "get",
"templateParams": {}
}

Description the rule list_of:

Allows you to describe validation rules for a list. Validation rules will be applyed for each array element.

Error code: depends on nested validators

Example:

// new syntax (introduced in v0.4)
{ product_ids: { 'list_of': 'positive_integer' }}
{ product_ids: { 'list_of': ['required', 'positive_integer'] }} // new syntax

Please fix this functionality. Best regards!

Here is an example, where i have received an error in validation

Data for validation

[{<<"id">>,<<"323232121133232">>},
 {<<"src_addr">>,<<"some.link">>},
 {<<"dst_addr">>,<<"+380990000000">>},
 {<<"category">>,<<"qwerty">>},
 {<<"message_template">>,
  [[{<<"text">>,<<"some text here">>}]]}].

Rules for olifer

[{<<"id">>,
  [<<"required">>,
   [{<<"max_length">>,64}],
   [{<<"like">>,<<"^[A-Za-z_0-9]{1,64}$">>}]]},
 {<<"src_addr">>,
  [<<"required">>,<<"not_empty">>,
   [{<<"like">>,<<"^[A-Za-z_.0-9]{1,64}$">>}]]},
 {<<"dst_addr">>,
  [<<"required">>,<<"not_empty">>,
   [{<<"like">>,<<"^\\+(380[0-9]{9}|[1-9][0-9]{7,14})$">>}]]},
 {<<"category">>,
  [<<"not_empty">>,
   [{<<"max_length">>,64}],
   [{<<"like">>,<<"^[A-Za-z_0-9]{1,64}$">>}]]},
 {<<"message_template">>,
  [<<"required">>,
   [{<<"list_of_objects">>,
     [{<<"text">>,[<<"not_empty">>]}]}]]}]

In version olifer 0.4.0 it returns:

{ok,[{<<"id">>,<<"323232121133232">>},
     {<<"src_addr">>,<<"some.link">>},
     {<<"dst_addr">>,<<"+380990000000">>},
     {<<"category">>,<<"qwerty">>},
     {<<"message_template">>,
      [[{<<"text">>,<<"some text here">>}]]}]}

In version olifer 0.4.1 it returns an error:

{errors,[{<<"message_template">>,
          [<<"Rule 'text' not_registered">>]}]}

List of changes v2.0 (see spec for details)

• Switched to semver. New release version is 2.0
• Unified approach to types handling
• "Base rules" renamed to "Common rules".
• "Filter rules" renamed to "Modifiers". They do not validate anything, just modify data.
• "Helper rules" renamed to "Metarules" as this rules are for describing other rules
• Added common rule "any_object"
• Added string rule "string"
• Added string rule "eq"
• Added metarule "variable_object"
• Added metarule "or"
• Added modifier "default"
• Add more edge cases to test suite
• Add experimental status to the "like" rule

All you need is to update your implementation to pass the latest spec's test suite.

so in 2017 was released 20.0 Erlang
maps in Erlang from 18 Erlang
why library still doesn't support maps ?

Here is the example for reproduce:
http://livr-multi-playground.webbylab.com/#%7B%22rules%22%3A%22%7B%5Cn%20%20%20%20'test'%3A%20'decimal'%5Cn%7D%22%2C%22input%22%3A%22%7B%5Cn%20%20%20%20'test'%3A%20-3.00%5Cn%7D%22%7D

I have added additional tests to test suite - koorchik/LIVR@3bfd694

Here is an example, how it was fixed in JS implementation - koorchik/js-validator-livr@5e8dc21#diff-1e3604932255b8e9b4aba0a1c5f96ae9R35

http://livr-playground.tk/#%7B%22rules%22%3A%22%7B%5Cn%20%20user_name%3A%20%5C%22not_registred_rule%5C%22%5Cn%7D%22%2C%22input%22%3A%22%7B%5Cn%20%20user_name%3A%20%5C%22%3BDROP%20DATABASE%20users%3B%5C%22%5Cn%7D%22%7D

Olifer version is still 0.4.2. in olifer.app.src. This number is used by livr-multi-playground for automatic display version of used olifer.