Oxid

oxid is rxjs observable based isomorphic http request module.

Install

This has a peer dependencies of rxjs@6, which will have to be installed as well

npm install oxid

Usage

Oxid exports default instance oxid, also exposes Oxid class to construct separate instances.

import { oxid, Oxid } from 'oxid';

oxid.get('url', options).subscribe();

const anotherInstance = new Oxid(customConfigurations);
anotherInstance.get('url', options).subscribe();

All of oxid's interface returns Observable<HttpEvent<T>> allows to subscribe into from base request function to http method function.

type requestMethodType = <T>(url: string, config?: RequestConfig) => Observable<HttpEvent<T>>;
type requestMethodWithDataType = <T, U>(url: string, data?: T, config?: RequestConfig) => Observable<HttpEvent<U>>;


class Oxid {
  public readonly delete: requestMethodType;
  public readonly get: requestMethodType;
  public readonly head: requestMethodType;
  public readonly options: requestMethodType;


  public readonly post: requestMethodWithDataType;
  public readonly put: requestMethodWithDataType;
  public readonly patch: requestMethodWithDataType;

  public request<T extends object | string = any>(url: string, config?: RequestConfig): Observable<HttpEvent<T>>;
  public request<T extends object | string = any>(url: string): Observable<HttpEvent<T>>;
  public request<T extends object | string = any>(config: RequestConfig): Observable<HttpEvent<T>>;
  public request<T extends object | string = any>(
    urlOrConfig: RequestConfig | string,
    config?: RequestConfig
  ): Observable<HttpEvent<T>> {

Configure oxid

Oxid includes default set of configuration values. This value will be used when use request instance oxid. When creating new instance via class, it doesn't include any option values by default, have to specify via class constructor. Still, individual method (request() and rest) accepts RequestConfig separately, which will merge into configurations when instance is being created.

interface RequestConfigBase {
  url?: string;
  method?: Method;
  baseURL?: string;
  transformRequest?: Transformer | Array<Transformer>;
  transformResponse?: Transformer | Array<Transformer>;
  headers?: any;
  params?: any;
  paramsSerializer?: (params: any) => string;
  data?: any;
  adapter?: Adapter;
  auth?: BasicCredentials;
  responseType?: ResponseType;
  responseEncoding?: string;
  xsrfCookieName?: string;
  xsrfHeaderName?: string;
  maxContentLength?: number;
  validateStatus?: (status: number) => boolean;
  maxRedirects?: number;
  socketPath?: string | null;
  proxy?: ProxyConfig;
}


interface RequestConfigNode extends RequestConfigBase {
  /**
   * Custom agent to be used in node http request.
   */
  httpAgent?: any;
  /**
   * Custom agent to be used in node https request.
   */
  httpsAgent?: any;
  transport?: { request: typeof import('http').request };
}


interface RequestConfigBrowser extends RequestConfigBase {
  /**
   * Emit progress event for xhr request.
   */
  reportProgress?: boolean;
  withCredentials?: boolean;
}

import {oxid, Oxid, defaultOptions} from 'oxid';

oxid.get(url); //will use `defaultOptions`
oxid.get({url, withCredentials: false}); //will use `defaultOptions`, override `withCredentials`

const another = new Oxid(); //no base configueration
const anotherWithConfig = new oxid({withCredendials: false}) //set base configuration

anotherWithConfig.get({url, withCredentials: false}) //will use config when instance created, override `withCredentials`

Note defaultOptions object is immutable. Changing, reassigning values into existing default configuration value won't work, instead should build new configuration object.

Debugging internals of oxid

Oxid itself doesn't have mechanism to write log. Instead, it exposes a function to wire any logger used in application.

function enableLogger(logger: logFunctionType): void;
function enableLogger(logger: Partial<Logger>): void;

It could be either single function, or object have loglevels like debug, info, warn, error. Notes enableLogger is Global function to affects any instance of oxid, and only starts emitting log once after enableLogger has been called.

import { enableLogger, oxid } from 'oxid';

// logs are not emitted
oxid.get().subscribe();

enableLogger(console.log.bind(console));

// now internal logs will be emitted via console
oxid.get().subscribe();

Building / Testing

Few npm scripts are supported for build / test code.

• build: Transpiles code to dist.
• build:clean: Clean up existing build.
• test: Run unit test. Does not require build before execute test.
• lint: Run lint over all codebases.

Credits

While this module is NOT officially affiliated, it relies on lot of prior art from axios and @angular/http. You may notice some similar logics and it is expected.