validlyjs/dist/rules/common/Object.js

ValidlyJS is a lightweight, type-safe validation library inspired by Laravel's validation syntax

import { Validator } from "../../core/Validator.js";
export const objectRule = {
    validate: (value) => typeof value === "object" && !Array.isArray(value) && value !== null,
    message: ([], ctx) => {
        const message = ctx.config.messages?.object;
        return typeof message === "string"
            ? ctx.formatMessage({ attribute: ctx.field || "field" }, message)
            : `${ctx.field} must be an object`;
    },
    additionalRules: {
        shape: (schema) => ({
            validate: async (obj, params, ctx) => {
                const validator = new Validator(schema);
                const result = await validator.validateAsync(obj);
                return result.isValid;
            },
            message: (params, ctx) => {
                const message = ctx.config.messages?.shape;
                return typeof message === "string"
                    ? ctx.formatMessage({ attribute: ctx.field || "field" }, message)
                    : `${ctx.field} has an invalid structure`;
            },
        }),
        strict: () => ({
            validate: (obj, [], ctx) => {
                if (!ctx.schema) {
                    throw new Error("Schema is required for strict validation");
                }
                const extraKeys = Object.keys(obj).filter((key) => !(key in ctx.schema));
                return extraKeys.length === 0;
            },
            message: ([], ctx) => {
                const message = ctx.config.messages?.strict;
                return typeof message === "string"
                    ? ctx.formatMessage({ attribute: ctx.field || "field" }, message)
                    : `${ctx.field} contains unexpected fields`;
            },
        }),
    },
};
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