Creating nested MD5 hash not working properly with env variables

[jonguenther]

Hey all,

I am trying to create a md5 hash as a nested environment variable. If I am doing it on the root level, it works just fine, however, when I try to do it inside an object, it fails. Also note that in the environment manager itself it displays the value of the hash correctly.

This is my general hash logic. The final "product" is a secret_hash env variable:

{
  "salt": "foo",
  "key": "secretKey",
  "hash_input": "{{ _.key }}{{ _.salt }}",
  "secret_hash": "{% hash 'md5', 'hex', _.hash_input %}"
}

which returns the correct hash of 4a508835b5962d6ce277afe9abddb000.

However, when I try to put it into an object (e.g. hash) like

{
  "hash": {
    "salt": "foo",
    "key": "secretKey",
    "hash_input": "{{ _.hash.key }}{{ _.hash.liveDate }}",
    "secret_hash": "{% hash 'md5', 'hex', _.hash.hash_input %}"
  }
}

it returns a wrong hash b60bd7a47d480f3e12bffb7051f8a744 (which is the hash of "{{ _.hash.key }}{{ _.hash.liveDate }}").

The issue seems to be similar to #2271, although according to the "top-bottom" processing, shouldn't it still work inside an object prop?

Edit:

I tried to circumvent the issue by keeping the hash creation at top-level and then use the secret_hash in a nested object like

{
  "salt": "foo",
  "key": "secretKey",
  "hash_input": "{{ _.key }}{{ _.liveDate }}",
  "secret_hash": "{% hash 'md5', 'hex', _.hash_input %}",
  "dumpObj": { // I dump this object in my request for reusability
	// ...
	"key":"{{_.secret_hash}}"
	// ..
  }
}

but unfortunately, it does not resolve the variables in hash_input before hashing it in secret_hash, i.e. "{{ _.hash.key }}{{ _.hash.liveDate }}" is hashed instead of secretKeyfoo 😢