Maximum call stack size exceeded

[DardanHaliti]

What version of Ajv are you using? Does the issue happen if you use the latest version?
I am using the latest version of ajv.
The project structure is src/schemas/schemaA.json and src/scripts/app.js

Ajv options object
I have read those links:
#802
#801
#877

JSON Schema

I have a json file schemaA.json

{
    "$id":"/path/to/file/schemaA.json",
    "$schema": "http://json-schema.org/draft-07/schema",
    "$ref": "/path/to/filer/schemaA.json",
    "schemaA": {
        "title": "P&ID Node Symbol",
        "description": "schemaA description",
        "type": "object",
        "properties": {
            "depiction": {
                "type": "string",
                "description": "another description"
            }
        },
        "required": ["depiction"]
    }
}

Sample data

For testing it is just a empty object or sometimes a simple example

{}
//
{
    "data":"123"
}

Your code

let Ajv = require('ajv');
let ajv = new Ajv({allErrors: true, schemaId: 'auto'});
let jsh = JSON.parse(fs.readFileSync("../src/server/schemas/nodeSymbol.json", 'utf8'));
ajv.addSchema(jsh);
// In a class method i use
async classmethod(req, res)
{
        //...other code not related to ajv
        let validate = ajv.compile(this.jsonschema);
        let v = validate({}); // here happens the error
        console.log(v)
        //..other code not related to ajv
}

Validation result, data AFTER validation, error messages

UnhandledPromiseRejectionWarning: RangeError: Maximum call stack size exceeded
    at callValidate (/app/node_modules/ajv/lib/ajv.js:1:1)
    at validate (eval at localCompile (/app/node_modules/ajv/lib/compile/index.js:120:26), <anonymous>:3:221)
    at callValidate (/app/node_modules/ajv/lib/ajv.js:368:28)
    at validate (eval at localCompile (/app/node_modules/ajv/lib/compile/index.js:120:26), <anonymous>:3:221)

What results did you expect?
I expect true or false when i try to validate it. I tried with compileAsync too but still the same problem.
Ps. I cant change the label to green

Are you going to resolve the issue?

[epoberezkin]

The schema is self-referencing from the top level - it is equivalent to the function function a() { return a(); } - endless recursion without the exit in case of success (and without the exit in case of failure when you use allErrors: true option). It is supposed to exceed the stack.

[epoberezkin]

Assuming that "$ref": "/path/to/filer/schemaA.json" is a typo and should be "$ref": "/path/to/file/schemaA.json"

[DardanHaliti]

Hi @epoberezkin thanks about the clearance of exceeded stack problem, I solved the error by adding "#/" to the end where the "$ref" points.
Another question is by adding multiple schemas, can i compile them at once or do i need to merge them? because when i add them and then try to validate my json object then it always returns true even when the data is an empty json(in which it should return false).

[epoberezkin]

I don’t think I understand but it’s good you resolved it :)

It’s difficult to understand the problem without code sample - I think you may be using api incorrectly