Support square bracket access to IdP attributes in arrays #48686

wnmzzzz · 2026-05-04T14:14:08Z

wnmzzzz
May 4, 2026

When configuring an Identity Provider Mapper, we can access nested properties in the JSON using dot notation. However, we cannot currently access individual entries in an array.

Consider the following ID Token returned from the Identity Provider:

{
  "exp": 1777902488,
  "nbf": 1777898888,
//....some other claims
  "emails": [
    "useremail@example.com"
  ],
   "some_nested_claim": {
       "claim1" : "foo",
       "claim2": "bar"
        }
}

We can access a nested claim with some_nested_claim.claim1, but we cannot access the first email using emails[0]

Note that this is already supported when configuring a mapper for a social provider like Google or Microsoft. Hopefully, we should be able to reuse the logic used for social providers for other providers and in the process make the handling of IdP mappers more uniform.

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Support square bracket access to IdP attributes in arrays #48686

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Support square bracket access to IdP attributes in arrays #48686

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wnmzzzz May 4, 2026

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wnmzzzz
May 4, 2026