Ajv issue - IPv4 address satisfies 'hostname' format (https://github.com/ajv-validator/ajv/issues/832)

Readme.md

Ajv issue - IPv4 address satisfies 'hostname' format (github.com/ajv-validator/ajv/issues/832)

$ npm install
$ node index.js

index.js

var Ajv = require("ajv");

ajv = new Ajv({
});

var schema = {
    "type": "object",
    "properties": {
        "host": {
            "type": "string",
            "oneOf": [
                { "format": "hostname" },
                { "format": "ipv4" }
            ]
        }
    }
};

var data = {
    "host": "127.0.0.1"
};

var validate = ajv.compile(schema);

console.log(validate(data));
console.log(validate.errors);

package.json

{
  "dependencies": {
    "ajv": "6.5.2"
  }
}

stdout

false
[ { keyword: 'oneOf',
    dataPath: '.host',
    schemaPath: '#/properties/host/oneOf',
    params: { passingSchemas: [Array] },
    message: 'should match exactly one schema in oneOf' } ]