chore: add project dependencies and configuration files

Initial setup of project dependencies including axios, express, dotenv, and other supporting packages. Added configuration files and documentation for project setup and usage.

node_modules/axios/lib/adapters/fetch.js

@@ -0,0 +1,229 @@
+import platform from "../platform/index.js";
+import utils from "../utils.js";
+import AxiosError from "../core/AxiosError.js";
+import composeSignals from "../helpers/composeSignals.js";
+import {trackStream} from "../helpers/trackStream.js";
+import AxiosHeaders from "../core/AxiosHeaders.js";
+import {progressEventReducer, progressEventDecorator, asyncDecorator} from "../helpers/progressEventReducer.js";
+import resolveConfig from "../helpers/resolveConfig.js";
+import settle from "../core/settle.js";
+
+const isFetchSupported = typeof fetch === 'function' && typeof Request === 'function' && typeof Response === 'function';
+const isReadableStreamSupported = isFetchSupported && typeof ReadableStream === 'function';
+
+// used only inside the fetch adapter
+const encodeText = isFetchSupported && (typeof TextEncoder === 'function' ?
+    ((encoder) => (str) => encoder.encode(str))(new TextEncoder()) :
+    async (str) => new Uint8Array(await new Response(str).arrayBuffer())
+);
+
+const test = (fn, ...args) => {
+  try {
+    return !!fn(...args);
+  } catch (e) {
+    return false
+  }
+}
+
+const supportsRequestStream = isReadableStreamSupported && test(() => {
+  let duplexAccessed = false;
+
+  const hasContentType = new Request(platform.origin, {
+    body: new ReadableStream(),
+    method: 'POST',
+    get duplex() {
+      duplexAccessed = true;
+      return 'half';
+    },
+  }).headers.has('Content-Type');
+
+  return duplexAccessed && !hasContentType;
+});
+
+const DEFAULT_CHUNK_SIZE = 64 * 1024;
+
+const supportsResponseStream = isReadableStreamSupported &&
+  test(() => utils.isReadableStream(new Response('').body));
+
+
+const resolvers = {
+  stream: supportsResponseStream && ((res) => res.body)
+};
+
+isFetchSupported && (((res) => {
+  ['text', 'arrayBuffer', 'blob', 'formData', 'stream'].forEach(type => {
+    !resolvers[type] && (resolvers[type] = utils.isFunction(res[type]) ? (res) => res[type]() :
+      (_, config) => {
+        throw new AxiosError(`Response type '${type}' is not supported`, AxiosError.ERR_NOT_SUPPORT, config);
+      })
+  });
+})(new Response));
+
+const getBodyLength = async (body) => {
+  if (body == null) {
+    return 0;
+  }
+
+  if(utils.isBlob(body)) {
+    return body.size;
+  }
+
+  if(utils.isSpecCompliantForm(body)) {
+    const _request = new Request(platform.origin, {
+      method: 'POST',
+      body,
+    });
+    return (await _request.arrayBuffer()).byteLength;
+  }
+
+  if(utils.isArrayBufferView(body) || utils.isArrayBuffer(body)) {
+    return body.byteLength;
+  }
+
+  if(utils.isURLSearchParams(body)) {
+    body = body + '';
+  }
+
+  if(utils.isString(body)) {
+    return (await encodeText(body)).byteLength;
+  }
+}
+
+const resolveBodyLength = async (headers, body) => {
+  const length = utils.toFiniteNumber(headers.getContentLength());
+
+  return length == null ? getBodyLength(body) : length;
+}
+
+export default isFetchSupported && (async (config) => {
+  let {
+    url,
+    method,
+    data,
+    signal,
+    cancelToken,
+    timeout,
+    onDownloadProgress,
+    onUploadProgress,
+    responseType,
+    headers,
+    withCredentials = 'same-origin',
+    fetchOptions
+  } = resolveConfig(config);
+
+  responseType = responseType ? (responseType + '').toLowerCase() : 'text';
+
+  let composedSignal = composeSignals([signal, cancelToken && cancelToken.toAbortSignal()], timeout);
+
+  let request;
+
+  const unsubscribe = composedSignal && composedSignal.unsubscribe && (() => {
+      composedSignal.unsubscribe();
+  });
+
+  let requestContentLength;
+
+  try {
+    if (
+      onUploadProgress && supportsRequestStream && method !== 'get' && method !== 'head' &&
+      (requestContentLength = await resolveBodyLength(headers, data)) !== 0
+    ) {
+      let _request = new Request(url, {
+        method: 'POST',
+        body: data,
+        duplex: "half"
+      });
+
+      let contentTypeHeader;
+
+      if (utils.isFormData(data) && (contentTypeHeader = _request.headers.get('content-type'))) {
+        headers.setContentType(contentTypeHeader)
+      }
+
+      if (_request.body) {
+        const [onProgress, flush] = progressEventDecorator(
+          requestContentLength,
+          progressEventReducer(asyncDecorator(onUploadProgress))
+        );
+
+        data = trackStream(_request.body, DEFAULT_CHUNK_SIZE, onProgress, flush);
+      }
+    }
+
+    if (!utils.isString(withCredentials)) {
+      withCredentials = withCredentials ? 'include' : 'omit';
+    }
+
+    // Cloudflare Workers throws when credentials are defined
+    // see https://github.com/cloudflare/workerd/issues/902
+    const isCredentialsSupported = "credentials" in Request.prototype;
+    request = new Request(url, {
+      ...fetchOptions,
+      signal: composedSignal,
+      method: method.toUpperCase(),
+      headers: headers.normalize().toJSON(),
+      body: data,
+      duplex: "half",
+      credentials: isCredentialsSupported ? withCredentials : undefined
+    });
+
+    let response = await fetch(request, fetchOptions);
+
+    const isStreamResponse = supportsResponseStream && (responseType === 'stream' || responseType === 'response');
+
+    if (supportsResponseStream && (onDownloadProgress || (isStreamResponse && unsubscribe))) {
+      const options = {};
+
+      ['status', 'statusText', 'headers'].forEach(prop => {
+        options[prop] = response[prop];
+      });
+
+      const responseContentLength = utils.toFiniteNumber(response.headers.get('content-length'));
+
+      const [onProgress, flush] = onDownloadProgress && progressEventDecorator(
+        responseContentLength,
+        progressEventReducer(asyncDecorator(onDownloadProgress), true)
+      ) || [];
+
+      response = new Response(
+        trackStream(response.body, DEFAULT_CHUNK_SIZE, onProgress, () => {
+          flush && flush();
+          unsubscribe && unsubscribe();
+        }),
+        options
+      );
+    }
+
+    responseType = responseType || 'text';
+
+    let responseData = await resolvers[utils.findKey(resolvers, responseType) || 'text'](response, config);
+
+    !isStreamResponse && unsubscribe && unsubscribe();
+
+    return await new Promise((resolve, reject) => {
+      settle(resolve, reject, {
+        data: responseData,
+        headers: AxiosHeaders.from(response.headers),
+        status: response.status,
+        statusText: response.statusText,
+        config,
+        request
+      })
+    })
+  } catch (err) {
+    unsubscribe && unsubscribe();
+
+    if (err && err.name === 'TypeError' && /Load failed|fetch/i.test(err.message)) {
+      throw Object.assign(
+        new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request),
+        {
+          cause: err.cause || err
+        }
+      )
+    }
+
+    throw AxiosError.from(err, err && err.code, config, request);
+  }
+});
+
+