feat: add CCashClient methods

README.md

@@ -15,9 +15,11 @@ npm install ccash-client-js
 ```js
 import { CCashClient } from 'ccash-client-js';
 
+process.env.CCASH_API_BASE_URL = 'https://your.ccash.api';
+
 const client = new CCashClient();
 
-client.balance('twix');
+console.log(await client.balance('blinkblinko'));
 ```
 
 ## Examples

examples/node/.env

@@ -0,0 +1 @@
+CCASH_API_BASE_URL=https://wtfisthis.tech/BankF

examples/node/index.js

@@ -1,10 +1,20 @@
+require('dotenv').config();
 const { CCashClient } = require('ccash-client-js');
 
-const client = new CCashClient()
+const user = 'blinkblinko';
+const pass = 'TestPassword';
+
+const client = new CCashClient();
 
 async function main() {
-  const balance = await client.balance('twix');
-  console.log(`Balance: ${balance}`)
+  const createdUser = await client.addUser(user, pass);
+  console.log('User created', createdUser);
+
+  const balance = await client.balance(user);
+  console.log(`Balance: ${balance}`);
+
+  const deletedUser = await client.deleteUser(user, pass);
+  console.log('User deleated', deletedUser);
 }
 
-main()
+main();

examples/node/package.json

@@ -7,6 +7,7 @@
     "start": "node index.js"
   },
   "dependencies": {
-    "ccash-client-js": "file:../.."
+    "ccash-client-js": "file:../..",
+    "dotenv": "^10.0.0"
   }
 }

examples/node/yarn.lock

@@ -14,6 +14,11 @@ axios@^0.21.1:
   dependencies:
     axios "^0.21.1"
 
+dotenv@^10.0.0:
+  version "10.0.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-10.0.0.tgz#3d4227b8fb95f81096cdd2b66653fb2c7085ba81"
+  integrity sha512-rlBi9d8jpv9Sf1klPjNfFAuWDjKLwTIJJ/VxtoTwIR6hnZxcEOQCZg2oIL3MWBYw5GpUDKOEnND7LXTbIpQ03Q==
+
 follow-redirects@^1.10.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.1.tgz#d9114ded0a1cfdd334e164e6662ad02bfd91ff43"

examples/web/.env

@@ -0,0 +1,2 @@
+SKIP_PREFLIGHT_CHECK=true
+CCASH_API_BASE_URL=https://wtfisthis.tech/BankF

examples/web/src/App.js

@@ -2,14 +2,16 @@ import React, { useEffect, useState } from 'react';
 import { CCashClient } from 'ccash-client-js';
 import './App.css';
 
-const client = new CCashClient();
+const client = new CCashClient(
+  process.env.CCASH_API_BASE_URL || 'https://wtfisthis.tech/BankF'
+);
 
 function App() {
   const [balance, setBalance] = useState(0);
 
   useEffect(() => {
     (async function getBalance() {
-      setBalance(await client.balance('twix'));
+      setBalance(await client.balance('blinkblinko'));
     })();
   }, []);
 

examples/web/yarn.lock

@@ -3163,6 +3163,7 @@ case-sensitive-paths-webpack-plugin@2.3.0:
   version "0.0.0"
   dependencies:
     axios "^0.21.1"
+    class-transformer "^0.4.0"
 
 chalk@2.4.2, chalk@^2.0.0, chalk@^2.4.1, chalk@^2.4.2:
   version "2.4.2"
@@ -3266,6 +3267,11 @@ cjs-module-lexer@^0.6.0:
   resolved "https://registry.yarnpkg.com/cjs-module-lexer/-/cjs-module-lexer-0.6.0.tgz#4186fcca0eae175970aee870b9fe2d6cf8d5655f"
   integrity sha512-uc2Vix1frTfnuzxxu1Hp4ktSvM3QaI4oXl4ZUqL1wjTu/BGki9TrCWoqLTg/drR1KwAEarXuRFCG2Svr1GxPFw==
 
+class-transformer@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/class-transformer/-/class-transformer-0.4.0.tgz#b52144117b423c516afb44cc1c76dbad31c2165b"
+  integrity sha512-ETWD/H2TbWbKEi7m9N4Km5+cw1hNcqJSxlSYhsLsNjQzWWiZIYA1zafxpK9PwVfaZ6AqR5rrjPVUBGESm5tQUA==
+
 class-utils@^0.3.5:
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"

package.json

@@ -18,7 +18,8 @@
     "test": "jest"
   },
   "dependencies": {
-    "axios": "^0.21.1"
+    "axios": "^0.21.1",
+    "class-transformer": "^0.4.0"
   },
   "devDependencies": {
     "@babel/core": "^7.14.5",

src/CCashClient.exceptions.ts

@@ -0,0 +1,69 @@
+import { Exception } from './Exception';
+
+export class BaseUrlMissingException extends Exception {
+  constructor() {
+    super('base url missing');
+  }
+}
+
+export class UserNotFoundException extends Exception {
+  constructor() {
+    super('user not found');
+  }
+}
+
+export class WrongPasswordException extends Exception {
+  constructor() {
+    super('wrong password');
+  }
+}
+
+export class InvalidRequestException extends Exception {
+  constructor() {
+    super('invalid request');
+  }
+}
+
+export class WrongAdminPasswordException extends Exception {
+  constructor() {
+    super('wrong admin password');
+  }
+}
+
+export class NameTooLongException extends Exception {
+  constructor() {
+    super('name too long');
+  }
+}
+
+export class UserAlreadyExistsException extends Exception {
+  constructor() {
+    super('user already exists');
+  }
+}
+
+export class InsufficientFundsException extends Exception {
+  constructor() {
+    super('insufficient funds');
+  }
+}
+
+export enum ErrorCodes {
+  UserNotFound = -1,
+  WrongPassword = -2,
+  InvalidRequest = -3,
+  WrongAdminPassword = -4,
+  NameTooLong = -5,
+  UserAlreadyExists = -6,
+  InsufficientFunds = -7,
+}
+
+export const ExceptionMap = {
+  [ErrorCodes.UserNotFound]: UserNotFoundException,
+  [ErrorCodes.WrongPassword]: WrongPasswordException,
+  [ErrorCodes.InvalidRequest]: InvalidRequestException,
+  [ErrorCodes.WrongAdminPassword]: WrongAdminPasswordException,
+  [ErrorCodes.NameTooLong]: NameTooLongException,
+  [ErrorCodes.UserAlreadyExists]: UserAlreadyExistsException,
+  [ErrorCodes.InsufficientFunds]: InsufficientFundsException,
+};

src/CCashClient.ts

@@ -1,5 +1,166 @@
-export class CCashClient {
+import axios, { AxiosInstance, AxiosResponse } from 'axios';
+import { plainToClass } from 'class-transformer';
+import { ICCashClient, User } from './CCashClient.types';
+import {
+  BaseUrlMissingException,
+  ExceptionMap,
+  ErrorCodes,
+} from './CCashClient.exceptions';
+
+export class CCashClient implements Partial<ICCashClient> {
+  /** TODO: not partial **/
+  http: AxiosInstance;
+
+  constructor(baseURL: string | undefined = process.env.CCASH_API_BASE_URL) {
+    if (!baseURL) {
+      throw new BaseUrlMissingException();
+    }
+
+    this.http = axios.create({
+      baseURL,
+    });
+  }
+
   balance(user: string): Promise<number> {
-    return Promise.resolve(10);
+    return this.http
+      .get(`/${user}/bal`)
+      .then((response) => this.handleError(response) || response.data.value);
   }
+
+  log(
+    user: string,
+    pass: string,
+    transactionCount: number = 10
+  ): Promise<number[]> {
+    return this.http
+      .get(`/${user}/bal`, {
+        headers: { Password: pass },
+        params: { n: transactionCount },
+      })
+      .then((response) => this.handleError(response) || response.data.value);
+  }
+
+  sendFunds(
+    user: string,
+    pass: string,
+    to: string,
+    amount: number
+  ): Promise<number> {
+    return this.http
+      .post(`/${user}/send/${to}`, {
+        headers: { Password: pass },
+        params: { amount },
+      })
+      .then((response) => this.handleError(response) || amount);
+  }
+
+  verifyPassword(user: string, pass: string): Promise<boolean> {
+    return this.http
+      .get(`/${user}/pass/verify`, { headers: { Password: pass } })
+      .then((response) => this.handleError(response) || response.data.value);
+  }
+
+  changePassword(user: string, pass: string, newPass: string): Promise<User> {
+    return this.http
+      .patch(
+        `/${user}/pass/change`,
+        { password: newPass },
+        { headers: { Password: pass } }
+      )
+      .then(
+        (response) =>
+          this.handleError(response) || this.serialize(User, { user })
+      );
+  }
+
+  setBal(user: string, pass: string, amount: number): Promise<number> {
+    return this.http
+      .patch(`/admin/${user}/bal`, undefined, {
+        headers: { Password: pass },
+        params: { amount },
+      })
+      .then((response) => this.handleError(response) || amount);
+  }
+
+  help(): Promise<string> {
+    return this.http.get('/help').then((response) => response.data);
+  }
+
+  close(pass: string): Promise<boolean> {
+    return this.http
+      .post('/close', undefined, { headers: { Password: pass } })
+      .then((response) => this.handleError(response) || true);
+  }
+
+  contains(user: string): Promise<boolean> {
+    return this.http
+      .get(`/contains/${user}`)
+      .then(
+        (response) => this.handleError(response) || response.data.value || false
+      );
+  }
+
+  adminVerifyPass(pass: string): Promise<boolean> {
+    return this.http
+      .get('/admin/verify')
+      .then(
+        (response) => this.handleError(response) || response.data.value || false
+      );
+  }
+
+  addUser(user: string, pass: string): Promise<User> {
+    return this.http
+      .post(`/user/${user}`, undefined, { headers: { Password: pass } })
+      .then(
+        (response) =>
+          this.handleError(response) || this.serialize(User, { user })
+      );
+  }
+
+  adminAddUser(
+    user: string,
+    pass: string,
+    initialBalance: number
+  ): Promise<User> {
+    return this.http
+      .post(`/user/${user}`, undefined, {
+        headers: { Password: pass },
+        params: { init_bal: initialBalance },
+      })
+      .then(
+        (response) =>
+          this.handleError(response) || this.serialize(User, { user })
+      );
+  }
+
+  deleteUser(user: string, pass: string): Promise<User> {
+    return this.http
+      .delete(`/user/${user}`, { headers: { Password: pass } })
+      .then(
+        (response) =>
+          this.handleError(response) || this.serialize(User, { user })
+      );
+  }
+
+  adminDeleteUser(user: string, pass: string): Promise<User> {
+    return this.http
+      .delete(`/user/${user}`, { headers: { Password: pass } })
+      .then(
+        (response) =>
+          this.handleError(response) || this.serialize(User, { user })
+      );
+  }
+
+  private handleError(response: AxiosResponse<any>): false {
+    if (
+      response.data.value &&
+      Object.values(ErrorCodes).includes(response.data.value)
+    ) {
+      throw new ExceptionMap[response.data.value as ErrorCodes]();
+    }
+
+    return false;
+  }
+
+  private serialize = plainToClass;
 }

src/CCashClient.types.ts

@@ -0,0 +1,36 @@
+import { User } from './User';
+
+export { User };
+
+export interface ICCashClient {
+  // Usage
+  balance(user: string): Promise<number>;
+  log(user: string, pass: string, transactionCount?: number): Promise<number[]>;
+  sendFunds(
+    user: string,
+    pass: string,
+    to: string,
+    amount: number
+  ): Promise<number>;
+  verifyPassword(user: string, pass: string): Promise<boolean>;
+
+  // Meta usage
+  changePassword(user: string, pass: string, newPass: string): Promise<User>;
+  setBal(user: string, pass: string, amount: number): Promise<number>;
+
+  // System usage
+  help(): Promise<string>;
+  close(pass: string): Promise<boolean>;
+  contains(user: string): Promise<boolean>;
+  adminVerifyPass(pass: string): Promise<boolean>;
+
+  // User management
+  addUser(user: string, pass: string): Promise<User>;
+  adminAddUser(
+    user: string,
+    pass: string,
+    initialBalance: number
+  ): Promise<User>;
+  deleteUser(user: string, pass: string): Promise<User>;
+  adminDeleteUser(user: string, pass: string): Promise<User>;
+}

src/Exception.ts

@@ -0,0 +1 @@
+export class Exception extends Error {}

src/User.ts

@@ -0,0 +1,7 @@
+import { Exclude, Expose } from 'class-transformer';
+
+@Exclude()
+export class User {
+  @Expose()
+  user!: string;
+}

src/index.ts

@@ -1 +1,3 @@
-export { CCashClient } from './CCashClient';
+export * from './CCashClient';
+export * from './CCashClient.types';
+export * from './CCashClient.exceptions';

test/CCashClient.spec.ts

@@ -12,7 +12,7 @@ describe('CCashClient', () => {
 
     describe('balance', () => {
       it('returns an integer', async () => {
-        expect(await client.balance('twix')).toEqual(10);
+        expect(await client.balance('blinkblinko')).toEqual(10);
       });
     });
   });

tsconfig.json

@@ -3,11 +3,13 @@
     "outDir": "./dist/cjs",
     "target": "es2015",
     "module": "commonjs",
+    "declaration": true,
     "strict": true,
     "noImplicitAny": true,
     "moduleResolution": "node",
     "allowSyntheticDefaultImports": true,
-    "forceConsistentCasingInFileNames": true
+    "forceConsistentCasingInFileNames": true,
+    "experimentalDecorators": true
   },
   "include": ["src/**/*"],
   "paths": {

yarn.lock

@@ -1546,6 +1546,11 @@ cjs-module-lexer@^1.0.0:
   resolved "https://registry.yarnpkg.com/cjs-module-lexer/-/cjs-module-lexer-1.2.1.tgz#2fd46d9906a126965aa541345c499aaa18e8cd73"
   integrity sha512-jVamGdJPDeuQilKhvVn1h3knuMOZzr8QDnpk+M9aMlCaMkTDd6fBWPhiDqFvFZ07pL0liqabAiuy8SY4jGHeaw==
 
+class-transformer@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/class-transformer/-/class-transformer-0.4.0.tgz#b52144117b423c516afb44cc1c76dbad31c2165b"
+  integrity sha512-ETWD/H2TbWbKEi7m9N4Km5+cw1hNcqJSxlSYhsLsNjQzWWiZIYA1zafxpK9PwVfaZ6AqR5rrjPVUBGESm5tQUA==
+
 cliui@^7.0.2:
   version "7.0.4"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-7.0.4.tgz#a0265ee655476fc807aea9df3df8df7783808b4f"