How to validate mandatory key values under array of Object and also allow new optional values ?

[chaitanyak4888]

{
    "test": {
        "bundle": [
            {
                "account": {
                    "accountType": "Savings",
                    "somekeyc": "testc"
                }
            },
            {
                "account": {
                    "accountType": "Current",
                    "somekeya": "testa"
                }
            },
            {
                "account": {
                    "accountType": "Loan",
                    "somekeyb": "testb"
                }
            }
        ]
    }
}

I need accountType as required field and the values of it should be "Loan" and "Savings" both these two arrays should be present for a given Json to validate if not throw it as invalid Loan and Savings are missing from the Array. And accountType should allow new values other than the two mentioned. Please help me out. I tried with enum , required and oneOf condition but could get the exact solution for this.

[jdesrosiers]

You're looking for the contains keyword. The following checks if the array contains an object with property "accountType" and value "Loan". You can use the same pattern to express that "Savings" is required and use allOf to combine the two assertions.

{
  "contains": {
    "type": "object",
    "properties": {
      "accountType": { "const": "Loan" }
    },
    "required": ["accountType"]
  }
}

[chaitanyak4888]

Okay, will try it out ,but my doubt is if i apply allOf with two conditions with const values , it might be contradictory each other or it can be only supporting one of the conditions.

[suprith-hub]

    "type": "object",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$id": "http://example.com/account",
    "properties": {
        "bundle": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "accountType": { "type": "string" },
                    "somekey": { "type": "string" },
                },
                "required": ["accountType"]
            },
            "prefixItems": [
                {
                    "type": "object",
                    "properties": {
                        "accountType": {
                            "const": "Loan"
                        },
                        "somekey": { "type": "string" }
                    },
                    "required": ["accountType"]
                }
            ]
        }
    }
})

console.log(await validate("http://example.com/account", {
    "bundle": [
        {
            "account": {
                "accountType": "Loa",
                "somekey": "k"
            }
        }
    ]
}, BASIC)) ```
-- I used prefixItems like this but it gave validation error in required, so can't I do it this way