http-svc/dist/index.mjs

A HTTP request service for browser and node.js

var __defProp = Object.defineProperty;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __publicField = (obj, key, value) => {
  __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
  return value;
};
import { HttpSvcMiddleware } from "@http-svc/middleware";
const getBuiltInMiddlewareName = (name) => `BUILT_IN_${name}`;
const createError = (ctx, message) => {
  var _a;
  const error = new Error(message || `Request Error: ${((_a = ctx.response) == null ? void 0 : _a.status) || "unknow status"}`);
  error.config = ctx.request;
  if (ctx.response) {
    error.response = ctx.response;
    if (!ctx.response.ok) {
      error.code = ctx.response.status;
    }
  }
  return error;
};
const isMiddleware = (middleware) => {
  if (middleware.name && middleware.handler)
    return true;
  return false;
};
const isNode = typeof window === "undefined";
const isArray = (val) => toString.call(val) === "[object Array]";
const isObject = (val) => val !== null && typeof val === "object";
const isRecordObj = (obj) => Object.prototype.toString.call(obj) === "[object Object]";
const isFormData = (val) => typeof FormData !== "undefined" && val instanceof FormData;
const isDate = (val) => toString.call(val) === "[object Date]";
const encodeParams = (val) => {
  return encodeURIComponent(val).replace(/%3A/gi, ":").replace(/%24/g, "$").replace(/%2C/gi, ",").replace(/%20/g, "+").replace(/%5B/gi, "[").replace(/%5D/gi, "]");
};
const buildURL = (url, params) => {
  const parts = [];
  Object.keys(params).forEach((key) => {
    let val = params[key];
    if (val === null || typeof val === "undefined") {
      return;
    }
    if (isArray(val)) {
      key = key + "[]";
    } else {
      val = [val];
    }
    val.forEach((v) => {
      if (isDate(v)) {
        v = v.toString();
      } else if (isObject(v)) {
        v = JSON.stringify(v);
      }
      parts.push(encodeParams(key) + "=" + encodeParams(v));
    });
  });
  const serializedParams = parts.join("&");
  if (serializedParams) {
    const hashMarkIndex = url.indexOf("#");
    if (hashMarkIndex !== -1) {
      url = url.slice(0, hashMarkIndex);
    }
    url += (url.indexOf("?") === -1 ? "?" : "&") + serializedParams;
  }
  return url;
};
const parseUrl = (url) => {
  const [u, s] = url.split("?");
  if (s) {
    const searchParams = s.split("&");
    if (searchParams.length) {
      const params = {};
      for (const searchParam of searchParams) {
        const [key, value] = searchParam.split("=");
        if (key && typeof value !== "undefined") {
          params[key] = value;
        }
      }
      return {
        url: u,
        params
      };
    }
  }
  return {
    url
  };
};
const CONTENT_TYPE_KEY = "Content-Type";
const getContentType = (headers) => (headers == null ? void 0 : headers[CONTENT_TYPE_KEY]) || (headers == null ? void 0 : headers["content-type"]);
const setContentType = (headers, contentType) => {
  if (!contentType)
    return;
  headers[CONTENT_TYPE_KEY] = contentType;
};
const getCookie = (key, options) => {
  if (!options)
    options = {};
  const isNoDecode = options.decode === false;
  const template = options.template || document.cookie;
  const decodedCookie = isNoDecode ? template : decodeURIComponent(template);
  const cookies = decodedCookie.split(";");
  for (let i = 0; i < cookies.length; i++) {
    let cookie = cookies[i];
    while (cookie.charAt(0) === " ") {
      cookie = cookie.substring(1);
    }
    const keyVal = cookie.split("=");
    const name = keyVal[0];
    const value = keyVal[1];
    if (key === name)
      return value;
  }
  return "";
};
const setObjectValue = (obj, keyOrKeys, value, spread) => {
  if (Array.isArray(keyOrKeys)) {
    const keys = [...keyOrKeys];
    while (keys.length) {
      if (keys.length === 1) {
        setObjectValue(obj, keys[0], value);
        break;
      }
      const key = keys.shift();
      if (!isRecordObj(obj)) {
        if (typeof obj[key] === "undefined" && spread) {
          obj[key] = {};
        } else {
          console.warn(`The value of "${key}" is not a record object!`);
          break;
        }
      }
      obj = obj[key];
    }
  } else {
    const key = keyOrKeys;
    obj[key] = value;
  }
};
const initCtx = async function(ctx, next) {
  if (!ctx.request)
    return next();
  const { baseURL, headers, params, data, credentials = "include" } = ctx.config;
  let url = ctx.config.url;
  const { url: originUrl, params: originParams } = parseUrl(url);
  if (originParams) {
    url = ctx.request.url = originUrl;
    ctx.request.params = {
      ...originParams,
      ...params || {}
    };
  } else {
    ctx.request.url = url;
    ctx.request.params = {
      ...params || {}
    };
  }
  if (baseURL && /^(https?:)?\/\//.test(url) === false) {
    ctx.request.url = `${baseURL}${url}`;
  }
  ctx.request.headers = {
    ...headers || {}
  };
  if (data) {
    if (typeof data === "object") {
      if (typeof FormData !== "undefined" && data instanceof FormData) {
        const form = new FormData();
        const entries = Array.from(data.entries());
        entries.forEach(([key, value]) => {
          form.append(key, value);
        });
        ctx.request.data = form;
      } else if (Object.keys(data)) {
        ctx.request.data = JSON.parse(JSON.stringify(data));
      }
    } else {
      ctx.request.data = data;
    }
  }
  ctx.request.credentials = credentials;
  return await next();
};
class HttpSvcInitCtx extends HttpSvcMiddleware {
  constructor() {
    super(...arguments);
    __publicField(this, "handler", initCtx);
    __publicField(this, "name", getBuiltInMiddlewareName("INIT_CTX"));
  }
}
__publicField(HttpSvcInitCtx, "handler", initCtx);
const timeout = async function(ctx, next) {
  let ms = ctx.config.timeout;
  if (typeof ctx.config.timeout !== "number") {
    ms = isNode ? 350 : 1e4;
  }
  if (!ctx.abortController && ms) {
    const abortController = new AbortController();
    ctx.abortController = abortController;
    ctx.timeoutId = setTimeout(() => {
      abortController.abort();
    }, ms);
    await next();
    clearTimeout(ctx.timeoutId);
  } else {
    await next();
  }
};
class HttpSvcTimeout extends HttpSvcMiddleware {
  constructor() {
    super(timeout);
    __publicField(this, "name", getBuiltInMiddlewareName("TIMEOUT"));
  }
}
__publicField(HttpSvcTimeout, "handler", timeout);
const xsrf = async function(ctx, next, config) {
  var _a, _b;
  if (!ctx.request)
    return next();
  const payload = (config == null ? void 0 : config.payload) || { token: "xsrf_token" };
  const { token, params, data, headers } = payload;
  let xsrfValue;
  if (params || data || headers) {
    try {
      if (!isNode) {
        xsrfValue = getCookie(token, { decode: false });
      } else {
        xsrfValue = getCookie(token, { template: ((_a = ctx.request.headers) == null ? void 0 : _a["cookie"]) || ((_b = ctx.request.headers) == null ? void 0 : _b["Cookie"]) || "_", decode: false });
      }
    } catch (error) {
      if (!isNode) {
        console.warn(error);
      }
    }
  }
  if (xsrfValue) {
    if (params) {
      setObjectValue(ctx.request, ["params", params], xsrfValue, true);
    }
    if (data) {
      if (typeof ctx.request.data === "undefined") {
        setObjectValue(ctx.request, ["data", data], xsrfValue, true);
      } else if (isObject(ctx.request.data)) {
        if (isRecordObj(ctx.request.data)) {
          setObjectValue(ctx.request, ["data", data], xsrfValue, true);
        } else if (isFormData(ctx.request.data)) {
          ctx.request.data.append(data, xsrfValue);
        }
      }
    }
    if (headers) {
      setObjectValue(ctx.request, ["headers", headers], xsrfValue, true);
    }
  }
  return await next();
};
class HttpSvcXsrf extends HttpSvcMiddleware {
  constructor(payload) {
    super({
      handler: xsrf,
      payload
    });
    __publicField(this, "name", getBuiltInMiddlewareName("XSRF"));
  }
}
__publicField(HttpSvcXsrf, "handler", xsrf);
const isEqualContentType = (target, current) => {
  if (!current)
    return false;
  return current.indexOf(target) > -1;
};
const jsonBody = (ctx, data, contentType) => {
  if (!ctx.request)
    return;
  ctx.request.data = JSON.stringify(data);
  if (!ctx.request.headers) {
    const headers = {};
    setContentType(headers, "application/json");
    ctx.request.headers = headers;
  } else if (!contentType) {
    setContentType(ctx.request.headers, "application/json");
  }
};
const body = async function(ctx, next, config) {
  var _a;
  if (!ctx.request)
    return next();
  const { params, headers } = ctx.request;
  ctx.request.url = buildURL(ctx.request.url, params || {});
  if (ctx.request.data) {
    const isContinue = Object.prototype.toString.call(ctx.request.data) !== "[object Object]";
    if (!isContinue) {
      const contentType = getContentType(headers);
      const data = ctx.request.data;
      if ((_a = config == null ? void 0 : config.payload) == null ? void 0 : _a.stringify) {
        jsonBody(ctx, data, contentType);
        return await next();
      }
      if (isEqualContentType("application/x-www-form-urlencoded", contentType)) {
        ctx.request.data = buildURL("", data).slice(1);
      }
      if (isEqualContentType("application/json", contentType || "application/json")) {
        jsonBody(ctx, data, contentType);
      }
      if (isEqualContentType("multipart/form-data", contentType)) {
        const keys = Object.keys(data);
        if (keys.length) {
          ctx.request.data = keys.reduce((form, key) => {
            form.append(key, data[key]);
            return form;
          }, new FormData());
        }
      }
    }
  }
  return await next();
};
class HttpSvcBody extends HttpSvcMiddleware {
  constructor() {
    super(body);
    __publicField(this, "name", getBuiltInMiddlewareName("BODY"));
  }
}
__publicField(HttpSvcBody, "handler", body);
const fetch = async (ctx, next) => {
  var _a;
  if (isNode) {
    throw new Error("When you are in a Node environment, please use server-side fetch middleware.");
  }
  if (!window.fetch) {
    throw new Error("When you are in a non-modern browser, please manually polyfill fetch.");
  }
  if (!ctx.request)
    return await next();
  if (ctx.response)
    return await next();
  const { url, method, headers, credentials } = ctx.request;
  const body2 = ctx.request.data;
  ctx.response = await window.fetch(url, {
    method,
    body: body2,
    headers,
    credentials,
    signal: (_a = ctx.abortController) == null ? void 0 : _a.signal
  });
  return await next();
};
class HttpSvcFetch extends HttpSvcMiddleware {
  constructor() {
    super(...arguments);
    __publicField(this, "handler", fetch);
    __publicField(this, "name", getBuiltInMiddlewareName("FETCH"));
  }
}
__publicField(HttpSvcFetch, "handler", fetch);
const resData = async function(ctx, next, config) {
  var _a, _b;
  await next();
  if ((_a = ctx.response) == null ? void 0 : _a.ok) {
    if (typeof ctx.response.data === "undefined") {
      try {
        const responseType = ((_b = config == null ? void 0 : config.payload) == null ? void 0 : _b.type) || "json";
        ctx.response.data = await ctx.response[responseType]();
      } catch (error) {
        console.warn(error);
      }
    }
  }
};
class HttpSvcResData extends HttpSvcMiddleware {
  constructor() {
    super(resData);
    __publicField(this, "name", getBuiltInMiddlewareName("RES_DATA"));
  }
}
__publicField(HttpSvcResData, "handler", resData);
const spray = async (ctx, next) => {
  await next();
};
class HttpSvcSprayMiddleware extends HttpSvcMiddleware {
  constructor(handler, payload) {
    super();
    __publicField(this, "name", getBuiltInMiddlewareName("SPRAY"));
    this.handler = async (ctx, next) => {
      return await handler(ctx, next, { payload });
    };
  }
}
__publicField(HttpSvcSprayMiddleware, "handler", spray);
const retry = async (ctx, next, config) => {
  var _a;
  const requestFn = (_a = ctx.request) == null ? void 0 : _a.function;
  const { times, condition, onRetry } = (config == null ? void 0 : config.payload) || { times: 0 };
  const isDone = () => {
    return !times || ctx.retry === times;
  };
  const doRetry = async (extra) => {
    var _a2;
    if (!requestFn) {
      throw createError(ctx, "Missing request function");
    }
    if (isDone() && !((_a2 = config == null ? void 0 : config.payload) == null ? void 0 : _a2.runtimeShortCircuit)) {
      throw createError(ctx);
    }
    ctx.retry = ctx.retry ? ctx.retry + 1 : 1;
    try {
      if (onRetry) {
        const newConfig = await onRetry(ctx.config, extra);
        if (newConfig) {
          ctx.config = newConfig;
        }
      }
      if (ctx.response)
        delete ctx.response;
      await requestFn(ctx);
    } catch (error) {
      throw createError(ctx, error.message);
    }
  };
  try {
    await next();
  } catch (error) {
    if (isDone()) {
      throw createError(ctx, error == null ? void 0 : error.message);
    }
    await doRetry();
    return;
  }
  if (condition) {
    const isMeetTheCondition = await condition(ctx.response);
    if (isMeetTheCondition) {
      await doRetry(isMeetTheCondition);
      return;
    }
  }
  if (!ctx.response || !ctx.response.ok) {
    await doRetry();
  }
};
class HttpSvcRetry extends HttpSvcMiddleware {
  constructor() {
    super(...arguments);
    __publicField(this, "name", getBuiltInMiddlewareName("RETRY"));
    __publicField(this, "handler", retry);
  }
}
__publicField(HttpSvcRetry, "handler", retry);
const getKeyByKeyDict = (url, dict) => {
  return Object.keys(dict).sort().reduce((k, c) => {
    k += `_${c}:${dict[c]}`;
    return k;
  }, `api:${url}`);
};
const cache = async (ctx, next, config) => {
  var _a;
  if (!ctx.request || ctx.request.method !== "GET")
    return await next();
  if (!(config == null ? void 0 : config.payload))
    return await next();
  const { store, extra } = config.payload;
  let key = config.payload.key;
  if (!key || !store)
    return await next();
  if (typeof key !== "string")
    key = getKeyByKeyDict(ctx.request.url, key);
  const data = store.get(key, extra);
  if (data) {
    ctx.response = new Response(JSON.stringify(data), {
      status: 200,
      statusText: `Cache:${key}`
    });
    await next();
  } else {
    await next();
    if ((_a = ctx.response) == null ? void 0 : _a.data) {
      store.set(key, ctx.response.data, extra);
    }
  }
};
class HttpSvcCache extends HttpSvcMiddleware {
  constructor(store) {
    super({
      handler: cache,
      payload: {
        store
      }
    });
    __publicField(this, "name", getBuiltInMiddlewareName("CACHE"));
  }
}
__publicField(HttpSvcCache, "handler", cache);
class HttpSvcControl {
  constructor(httpSvc) {
    this.httpSvc = httpSvc;
  }
}
class ConfigControl extends HttpSvcControl {
  provide(ctx = {}) {
    const provider = {
      inject: (key, value) => {
        this.inject(ctx, key, value);
        return provider;
      },
      disable: (key) => {
        this.disable(ctx, key);
        return provider;
      },
      get: () => {
        return ctx;
      }
    };
    return provider;
  }
  inject(ctx, name, config) {
    ctx[name] = config;
  }
  disable(ctx, name) {
    ctx[name] = {
      ...ctx[name] || {},
      disabled: true
    };
  }
  get(ctx, name) {
    return ctx[name] || {};
  }
}
const BUILT_IN_MIDDLEWARE = {
  INIT_CTX: getBuiltInMiddlewareName("INIT_CTX"),
  TIMEOUT: getBuiltInMiddlewareName("TIMEOUT"),
  BODY: getBuiltInMiddlewareName("BODY"),
  XSRF: getBuiltInMiddlewareName("XSRF"),
  FETCH: getBuiltInMiddlewareName("FETCH"),
  RETRY: getBuiltInMiddlewareName("RETRY"),
  SPRAY: getBuiltInMiddlewareName("SPRAY"),
  RES_DATA: getBuiltInMiddlewareName("RES_DATA"),
  RES_EXTRACT: getBuiltInMiddlewareName("RES_EXTRACT"),
  LOG: getBuiltInMiddlewareName("LOG"),
  CACHE: getBuiltInMiddlewareName("CACHE")
};
const ORDER_PRIFIX = "$ORDER_";
class AssembleDispatcher {
  constructor(control) {
    __publicField(this, "middlewares", []);
    __publicField(this, "middlewareConfigCtxProvider");
    this.control = control;
    this.middlewareConfigCtxProvider = this.control.httpSvc.configCtrl.provide();
  }
  with(middleware, payload) {
    if (!middleware)
      return this;
    if (typeof middleware === "string") {
      this.middlewares.push({
        name: `${ORDER_PRIFIX}${middleware}`,
        handler: HttpSvcSprayMiddleware.handler
      });
      if (payload) {
        this.inject(middleware, payload);
      }
    } else if (typeof middleware === "function") {
      this.middlewares.push(new HttpSvcSprayMiddleware(middleware, payload));
    } else if (isMiddleware(middleware)) {
      this.middlewares.push(middleware);
      if (payload) {
        this.inject(middleware.name, payload);
      }
    }
    return this;
  }
  inject(name, payload) {
    this.middlewareConfigCtxProvider.inject(name, { payload });
    return this;
  }
  disable(name) {
    this.middlewareConfigCtxProvider.disable(name);
    return this;
  }
  request(config) {
    const fn = this.control.compose(this.middlewares);
    return this.control.httpSvc.requestCtrl.request(config, this.middlewareConfigCtxProvider.get(), fn);
  }
}
class AssembleControl extends HttpSvcControl {
  constructor() {
    super(...arguments);
    __publicField(this, "middlewares", []);
  }
  alreadyExistsIdx(middlewareName) {
    return this.middlewares.findIndex((m) => m.name === middlewareName);
  }
  register(middlewares) {
    if (Array.isArray(middlewares)) {
      let reset = false;
      middlewares.forEach((m) => {
        if (isMiddleware(m)) {
          reset = true;
          const idx = this.alreadyExistsIdx(m.name);
          if (idx > -1) {
            this.middlewares[idx] = m;
          } else {
            this.middlewares.push(m);
          }
        }
      });
      if (reset) {
        this.httpSvc.requestCtrl.reset();
      }
    }
  }
  setup() {
    return new AssembleDispatcher(this);
  }
  disable(middlewareName) {
    return this.setup().disable(middlewareName);
  }
  with(middleware, payload) {
    return this.setup().with(middleware, payload);
  }
  compose(middlewares) {
    const list1 = [...this.middlewares];
    const list2 = [];
    const builtInOverride = {
      [BUILT_IN_MIDDLEWARE.RETRY]: null,
      [BUILT_IN_MIDDLEWARE.BODY]: null,
      [BUILT_IN_MIDDLEWARE.RES_DATA]: null,
      [BUILT_IN_MIDDLEWARE.TIMEOUT]: null
    };
    const builtInNames = Object.keys(builtInOverride);
    const unique = {};
    (middlewares || []).forEach((m) => {
      if (isMiddleware(m)) {
        let middlewareName = m.name;
        if (builtInNames.includes(middlewareName)) {
          if (!builtInOverride[middlewareName]) {
            builtInOverride[middlewareName] = m;
          }
        } else {
          if (middlewareName.startsWith(ORDER_PRIFIX)) {
            middlewareName = middlewareName.substring(ORDER_PRIFIX.length);
            if (!unique[middlewareName] && !(middlewareName in builtInOverride)) {
              const globalMiddlewareIndex = list1.findIndex((m2) => m2.name === middlewareName);
              if (globalMiddlewareIndex > -1) {
                const realM = list1[globalMiddlewareIndex];
                list1.splice(globalMiddlewareIndex, 1);
                unique[middlewareName] = realM;
                list2.push(realM);
              }
            }
          } else {
            if (BUILT_IN_MIDDLEWARE.SPRAY === middlewareName) {
              list2.push(m);
            } else if (!unique[middlewareName]) {
              unique[middlewareName] = m;
              list2.push(m);
            }
          }
        }
      }
    });
    const list = [];
    list1.forEach((m) => {
      if (builtInNames.includes(m.name)) {
        if (!builtInOverride[m.name]) {
          builtInOverride[m.name] = m;
        }
      } else if (!unique[m.name]) {
        list.push(m);
      }
    });
    list.push(...list2);
    const middlewareList = [
      builtInOverride[BUILT_IN_MIDDLEWARE.RETRY] || new HttpSvcRetry(),
      new HttpSvcInitCtx(),
      ...list,
      builtInOverride[BUILT_IN_MIDDLEWARE.RES_DATA] || new HttpSvcResData(),
      builtInOverride[BUILT_IN_MIDDLEWARE.BODY] || new HttpSvcBody(),
      builtInOverride[BUILT_IN_MIDDLEWARE.TIMEOUT] || new HttpSvcTimeout(),
      this.httpSvc.fetch
    ];
    return async (context) => {
      var _a, _b;
      let index = -1;
      const configCtrl = this.httpSvc.configCtrl;
      const debug = configCtrl.get(context.middleware, "DEBUG").payload;
      await dispatch(0);
      if (debug) {
        return context;
      }
      const disableResExtract = configCtrl.get(context.middleware, BUILT_IN_MIDDLEWARE.RES_EXTRACT).disabled;
      if (!disableResExtract && ((_a = context.response) == null ? void 0 : _a.ok)) {
        return ((_b = context.response) == null ? void 0 : _b.data) || null;
      }
      return context.response;
      async function dispatch(i) {
        if (i === middlewareList.length)
          return;
        if (i <= index)
          throw createError(context, "The next() called multiple times");
        index = i;
        const middleware = middlewareList[index];
        if (!middleware) {
          throw createError(context, "Middleware is not exist");
        }
        await middleware.handler(context, dispatch.bind(null, i + 1), configCtrl.get(context.middleware, middleware.name));
      }
    };
  }
}
class RequestControl extends HttpSvcControl {
  constructor() {
    super(...arguments);
    __publicField(this, "fn", null);
  }
  async request(config, middlewareCtx = {}, fn) {
    if (!fn) {
      if (!this.fn) {
        this.generateRequestFunction();
      }
      fn = this.fn;
    }
    return await fn(this.createContext(config, middlewareCtx, fn));
  }
  generateRequestFunction() {
    this.fn = this.httpSvc.assembleCtrl.compose();
  }
  reset() {
    this.fn = null;
  }
  get useAsyncRequest() {
    return (asyncRequest, config) => {
      const inst = this.httpSvc.create(config);
      asyncRequest(inst.request.bind(inst));
    };
  }
  createContext(config, middleware = {}, requestFn) {
    const { url, method } = config;
    const ctx = {
      config: {
        baseURL: this.httpSvc.baseURL,
        ...config
      },
      useAsyncRequest: this.useAsyncRequest,
      middleware,
      request: {
        url,
        method: (method || "get").toUpperCase(),
        function: requestFn
      }
    };
    return ctx;
  }
}
class HttpService {
  constructor(initConfig) {
    __publicField(this, "fetch");
    __publicField(this, "assembleCtrl", new AssembleControl(this));
    __publicField(this, "configCtrl", new ConfigControl(this));
    __publicField(this, "requestCtrl", new RequestControl(this));
    __publicField(this, "baseURL", "//api.domain.com");
    if (initConfig) {
      if (Array.isArray(initConfig)) {
        this.fetch = new HttpSvcFetch();
        this.register(initConfig);
      } else {
        const { middlewares, fetch: fetch2, baseURL } = initConfig;
        this.fetch = fetch2 || new HttpSvcFetch();
        this.register(middlewares || []);
        if (baseURL)
          this.baseURL = baseURL;
      }
    } else {
      this.fetch = new HttpSvcFetch();
      this.register([]);
    }
  }
  register(middlewares) {
    this.assembleCtrl.register(middlewares);
  }
  request(config) {
    return this.requestCtrl.request(config);
  }
  disable(middlewareName) {
    return this.assembleCtrl.disable(middlewareName);
  }
  with(middleware, payload) {
    return this.assembleCtrl.with(middleware, payload);
  }
  setFetch(fetch2) {
    this.fetch = fetch2;
    this.requestCtrl.reset();
  }
  create(config) {
    return new HttpService({
      fetch: this.fetch,
      ...config || {}
    });
  }
}
export {
  BUILT_IN_MIDDLEWARE,
  HttpService,
  HttpSvcCache,
  HttpSvcRetry,
  HttpSvcSprayMiddleware,
  HttpSvcXsrf
};
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