@worker-tools/json-fetch/esm/index.js

A drop-in replacements for fetch, Request, and Response with first class support for JSON objects.

/**
 * Tests is the argument is a Fetch API `BodyInit`.
 * Assumed to be `JSONValue` otherwise.
 */
function isBodyInit(b) {
    return (b == null ||
        typeof b === 'string' ||
        (typeof Blob !== 'undefined' && b instanceof Blob) ||
        (typeof ArrayBuffer !== 'undefined' && (b instanceof ArrayBuffer || ArrayBuffer.isView(b))) ||
        (typeof FormData !== 'undefined' && b instanceof FormData) ||
        (typeof URLSearchParams !== 'undefined' && b instanceof URLSearchParams) ||
        (typeof ReadableStream !== 'undefined' && b instanceof ReadableStream));
}
export class JSONRequest extends Request {
    constructor(input, init, replacer, space) {
        const { headers: _headers, body: _body, ..._init } = init || {};
        let isBI;
        const body = (isBI = isBodyInit(_body))
            ? _body
            : JSON.stringify(_body, replacer, space);
        const headers = new Headers(_headers);
        if (!headers.has('Content-Type') && !isBI)
            headers.set('Content-Type', JSONRequest.contentType);
        if (!headers.has('Accept'))
            headers.set('Accept', JSONRequest.accept);
        super(input instanceof URL ? input.href : input, { headers, body, ..._init });
    }
}
Object.defineProperty(JSONRequest, "contentType", {
    enumerable: true,
    configurable: true,
    writable: true,
    value: 'application/json;charset=UTF-8'
});
Object.defineProperty(JSONRequest, "accept", {
    enumerable: true,
    configurable: true,
    writable: true,
    value: 'application/json, text/plain, */*'
});
export class JSONResponse extends Response {
    constructor(body, init, replacer, space) {
        const { headers: _headers, ..._init } = init || {};
        let isBI;
        const _body = (isBI = isBodyInit(body))
            ? body
            : JSON.stringify(body, replacer, space);
        const headers = new Headers(_headers);
        if (!headers.has('Content-Type') && !isBI)
            headers.set('Content-Type', JSONResponse.contentType);
        super(_body, { headers, ..._init });
    }
}
Object.defineProperty(JSONResponse, "contentType", {
    enumerable: true,
    configurable: true,
    writable: true,
    value: 'application/json;charset=UTF-8'
});
export function jsonFetch(...args) {
    return fetch(new JSONRequest(...args));
}
export * from './search-params-url.js';
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