request-mocking-protocol/dist/interceptors/fetch.js

A protocol for declarative mocking of HTTP requests

"use strict";
/**
 * Global fetch interceptor.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.setupFetchInterceptor = setupFetchInterceptor;
const utils_1 = require("../request-matcher/utils");
const response_builder_1 = require("../response-builder");
const transport_1 = require("../transport");
function setupFetchInterceptor(getIncomingHeaders) {
    const originalFetch = globalThis.fetch;
    globalThis.fetch = async (input, init) => {
        const request = new Request(input, init);
        const mockSchemas = await (0, transport_1.extractMockSchemas)(getIncomingHeaders);
        const matchResult = await (0, utils_1.matchSchemas)(request, mockSchemas);
        if (!matchResult)
            return originalFetch(input, init);
        const { body, headers, status, statusText } = await new response_builder_1.ResponseBuilder(matchResult, {
            bypass: (req) => originalFetch(req),
        }).build();
        return new Response(body, { status, statusText, headers });
    };
}
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