Conditional attribute in jsonschema is missing in JsonData - jsonschema

Question

I have following JSON schema
{
"type": "object",
"additionalProperties": true,
"if":
{
"properties":
{
"battery":
{
"type": "object",
"additionalProperties": false,
"minLength":1,
"properties":
{
"cell_composition":
{
"type": "object",
"additionalProperties": false,
"properties":
{
"value":
{
"enum": ["lithium", "lithium_cobalt"]
}
}
}
}
}
}
} ,
"then":
{
"required": ["number_of_lithium_ion_cells"]
}
}
Below is the JSON data
{
"battery123":
{
"cell_composition":
{
"value": "lithium_polymer"
}
}
}
I got below error
Message:
Required properties are missing from object:
number_of_lithium_ion_cells. Schema path:
#/then/required
Actually when "battery" attribute exist then it works fine.
when "battery" attribute does not exist it should give above mentioned error.
How can I add above condition then it will works on both above mentioned cases.

Answer 1

I have checked your both schemas with JavaScript (see snipet below) and the result is: your both schemas are absolutelly OK. You have to find your mistake not in JSON schemas.
var jObj1 =
{
"type": "object",
"additionalProperties": true,
"if":
{
"properties":
{
"battery":
{
"type": "object",
"additionalProperties": false,
"minLength":1,
"properties":
{
"cell_composition":
{
"type": "object",
"additionalProperties": false,
"properties":
{
"value":
{
"enum": ["lithium", "lithium_cobalt"]
}
}
}
}
}
}
} ,
"then":
{
"required": ["number_of_lithium_ion_cells"]
}
}
var test1 = JSON.parse(JSON.stringify(jObj1));
console.log(test1);
var jObj2 =
{
"battery123":
{
"cell_composition":
{
"value": "lithium_polymer"
}
}
}
var test2 = JSON.parse(JSON.stringify(jObj2));
console.log(test2);