koa-body/dist/commonjs/utils/parse-with-formidable.js

A Koa body parser middleware. Supports multipart, urlencoded and JSON request bodies.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = parseWithFormidable;
const formidable_1 = __importDefault(require("formidable"));
function convertFormidableFields(fields) {
    const result = {};
    for (const key in fields) {
        const value = fields[key];
        if (value !== undefined) {
            result[key] = value.length === 1 ? value[0] : value;
        }
    }
    return result;
}
function convertFormidableFiles(files) {
    const result = {};
    for (const key in files) {
        const value = files[key];
        if (value !== undefined) {
            result[key] = value.length === 1 ? value[0] : value;
        }
    }
    return result;
}
async function parseWithFormidable(ctx, options) {
    const { onFileBegin, onPart, ...directOptions } = options;
    const form = (0, formidable_1.default)({ multiples: true, ...directOptions });
    if (onPart) {
        const delegate = form._handlePart.bind(form);
        form.onPart = (part) => {
            onPart(part, delegate);
        };
    }
    if (onFileBegin) {
        form.on('fileBegin', onFileBegin);
    }
    const [fields, files] = await form.parse(ctx.req);
    return { fields: convertFormidableFields(fields), files: convertFormidableFiles(files) };
}
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