Some liquid functions are not working - especially the time functions

[pestanko]

All of the time functions are returning the empty string:

Functions: time, today, http_time, cookie_time, localtime, now, utctime

Version

3scale 2.3-CR1

Steps To Reproduce

1. Create application
2. add URL rewrite policy
3. add rules for any of these functions with liquid
   Example: arg = {{ now }}
4. Make a request and response should look like:

"args": "user_key=5941428bd561fa5a91489f2c36ed8cb3&arg=",

Current Result

{
  "method": "GET",
  "path": "/test/path",
  "args": "user_key=5941428bd561fa5a91489f2c36ed8cb3&arg=",
  "body": "",
...
}

Expected Result

{
  "method": "GET",
  "path": "/test/path",
  "args": "user_key=5941428bd561fa5a91489f2c36ed8cb3&arg=TIMESTAMP",
  "body": "",
...
}

[pestanko]

Here is the issue in JIRA:
https://issues.jboss.org/browse/THREESCALE-1329

WORKAROUND

Currently, how these functions work - it is required to call it this way: {{ <some_param> | now}}

So, for example, this works: {{ uri | now }}

[davidor]

Hi @pestanko ,

This happens because we expose all the functions that you mention (now, utctime) as "liquid filters". Liquid filters are called like this: {{ arg | filter }} : https://help.shopify.com/en/themes/liquid/filters

The problem is that we shouldn't have exposed functions that do not receive any params as filters, because then, in order to call them something like {{ '' | filter }} is needed. We should expose these kind of functions as parameters, not as filters.