@russ-b/nestjs-common-tools/dist/class-transformer/to-string-array.decorator.js

NestJS utility tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ToStringArray = ToStringArray;
const class_transformer_1 = require("class-transformer");
function ToStringArray() {
    return (0, class_transformer_1.Transform)(({ value }) => normalizeToStringArray(value));
}
function normalizeToStringArray(value) {
    if (typeof value === 'string') {
        return splitAndTrim(value);
    }
    if (Array.isArray(value)) {
        return value.flatMap((item) => typeof item === 'string' ? splitAndTrim(item) : []);
    }
    return value;
}
function splitAndTrim(value) {
    return value
        .split(',')
        .map((item) => item.trim())
        .filter(Boolean);
}
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