react-http-fetch/lib/esm/config/request-body-serializer.js

An http library for React JS built on top of native JS fetch

import { isArrayBuffer, isBlob, isBoolean, isFormData, isNumber, isObject, isUrlSearchParams, } from '../shared';
export function serializeRequestBody(body) {
    // If no body is present, no need to serialize it.
    if (body === null || typeof body === 'undefined') {
        return null;
    }
    // Check whether the body is already in a serialized form. If so,
    // it can just be returned directly.
    if (isArrayBuffer(body) ||
        isBlob(body) ||
        isFormData(body) ||
        isUrlSearchParams(body) ||
        typeof body === 'string') {
        return body;
    }
    // Check whether the body is an object, an array, a boolean or a number, and serialize with JSON if so.
    if (isObject(body) || isBoolean(body) || isNumber(body) || Array.isArray(body)) {
        return JSON.stringify(body);
    }
    // Fallback to body string literal.
    return "".concat(body);
}