klz-cables.com/.pnpm-store/v10/files/22/1b9ee6ec9e761c8215f2dd1e231cc63bc83852516f291c0f05a77038bc550682848a2a6891c7722b872ce63a98f5dfa85c2129df6166300218c2b92f28467b

import { APIErrorName } from '../errors/APIError.js';
import { ValidationErrorName } from '../errors/ValidationError.js';
export const formatErrors = (incoming)=>{
    if (incoming) {
        // Cannot use `instanceof` to check error type: https://github.com/microsoft/TypeScript/issues/13965
        // Instead, get the prototype of the incoming error and check its constructor name
        const proto = Object.getPrototypeOf(incoming);
        // Payload 'ValidationError' and 'APIError'
        if ((proto.constructor.name === ValidationErrorName || proto.constructor.name === APIErrorName) && incoming.data) {
            return {
                errors: [
                    {
                        name: incoming.name,
                        data: incoming.data,
                        message: incoming.message
                    }
                ]
            };
        }
        // Mongoose 'ValidationError': https://mongoosejs.com/docs/api/error.html#Error.ValidationError
        if (proto.constructor.name === ValidationErrorName && 'errors' in incoming && incoming.errors) {
            return {
                errors: Object.keys(incoming.errors).reduce((acc, key)=>{
                    acc.push({
                        field: incoming.errors[key].path,
                        message: incoming.errors[key].message
                    });
                    return acc;
                }, [])
            };
        }
        if (Array.isArray(incoming.message)) {
            return {
                errors: incoming.message
            };
        }
        if (incoming.name) {
            return {
                errors: [
                    {
                        message: incoming.message
                    }
                ]
            };
        }
    }
    return {
        errors: [
            {
                message: 'An unknown error occurred.'
            }
        ]
    };
};

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