Lamer News API Client

A JavaScript API client for the Lamer News API. This package exports ES modules and includes TypeScript definitions.

Note this package is still under development.

Source code is generated from the OpenAPI spec using the typescript-fetch template.

Getting Started

Install

npm install lamernews-api-client --save

Basic Usage

import { Configuration, NewsApi, SortType } from 'lamernews-api-client';

const apiConfig = new Configuration({
  basePath: 'https://echojs.com',
});

const newsApi = new NewsApi(apiConfig);

newsApi
  .getNews({
    sort: SortType.Top,
    start: 0,
    count: 30,
  })
  .then((response) => {
    console.log(response);
  });

Usage with Middleware & TypeScript

import {
  AuthApi,
  CommentsApi,
  Configuration,
  ConfigurationParameters,
  FetchParams,
  GenericResponse,
  Middleware,
  NewsApi,
  ResponseContext,
  RequestContext,
  ResponseStatus,
} from 'lamernews-api-client';

class ApiMiddleWare implements Middleware {
  public async pre(context: RequestContext): Promise<FetchParams | void> {
    return Promise.resolve(context);
  }

  public async post(context: ResponseContext): Promise<Response | void> {
    // Treat successful responses with response.status === 'err' as errors
    if (
      context.response.ok &&
      context.response.headers
        .get('content-type')
        ?.startsWith('application/json')
    ) {
      const response = (await context.response
        .clone()
        .json()) as GenericResponse;
      if (response.status === ResponseStatus.Err) {
        return Promise.reject(context.response);
      }
    }
    return Promise.resolve(context.response);
  }
}

const configParams: ConfigurationParameters = {
  basePath: 'https://echojs.com',
  middleware: [new ApiMiddleWare()],
};

const apiConfig = new Configuration(configParams);

export const apiClient = {
  newsApi: new NewsApi(apiConfig),
  commentsApi: new CommentsApi(apiConfig),
  authApi: new AuthApi(apiConfig),
};

export type ApiClient = typeof apiClient;

Authentication

Here's an example of how to authenticate, then upvote a new entry:

authApi
  .login({
    username: 'username',
    password: 'password',
  })
  .then((data) => {
    const { auth, apisecret } = data;
    document.cookie =
      'auth=' + auth + '; expires=Thu, 1 Aug 2030 20:00:00 UTC; path=/';
    return newsApi.voteNews({
      newsId: newsId,
      voteType: VoteType.Up,
      apisecret: apisecret,
    });
  });

Authentication in React Native

Similar to the previous example we need to manually set the cookie. This can be achieved by updating the api config.

First you need to expose a function to mutate the config:

const configParams = {
  basePath: 'https://echojs.com/api',
  middleware: [new ApiMiddleWare()],
};

const apiConfig = new Configuration(configParams);

export const apiClient = {
  newsApi: new NewsApi(apiConfig),
  commentsApi: new CommentsApi(apiConfig),
  authApi: new AuthApi(apiConfig),
};

export function updateApiConfig(config: ConfigurationParameters): void {
  Object.assign(configParams, config);
}

Now after a successful login, add the auth cookie header to the API config:

authApi
  .login({
    username: 'username',
    password: 'password',
  })
  .then((data) => {
    const { auth } = data;
    updateApiConfig({
      headers: {
        cookie: `auth=${auth}`,
      },
    });
  });

All subsequent requests will now include this request header containing the cookie.

React-Native's fetch implementation does not support posting a URLSearchParam instance as the body. You need to adjust the request body to stringify the URLSearchParams:

export class ApiMiddleWare implements Middleware {
  public async pre(context: RequestContext): Promise<FetchParams | void> {
    if (context.init.body instanceof URLSearchParams) {
      context.init.body = context.init.body.toString();
    }
    return Promise.resolve(context);
  }
}

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