app.maffin.io initial commit

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "npm" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"
+    open-pull-requests-limit: 20

.github/workflows/backend-ci.yml

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+name: Backend CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.17.0]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn stocker:install
+
+      - name: Lint
+        run: yarn stocker:lint
+
+      - name: Test
+        run: yarn stocker:test

.github/workflows/frontend-ci.yml

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+name: Frontend CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.17.0]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Build # includes lint
+        run: yarn maffin:build
+
+      - name: Test
+        run: yarn maffin:test --coverage

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+**/coverage
+
+# next
+.next
+.vscode
+
+# production
+/build
+
+account.gz*
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+#amplify-do-not-edit-begin
+amplify/\#current-cloud-backend
+amplify/.config/local-*
+amplify/logs
+amplify/mock-data
+amplify/backend/amplify-meta.json
+amplify/backend/.temp
+build/
+dist/
+node_modules/
+awsconfiguration.json
+amplifyconfiguration.json
+amplifyconfiguration.dart
+amplify-build-config.json
+amplify-gradle-config.json
+amplifytools.xcconfig
+.secret-*
+**.sample
+#amplify-do-not-edit-end

.nvmrc

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+v16.17.0

README.md

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+# maffin.io
+
+# Developing
+
+If you want to add a new user, before starting with the installation you will need few steps:
+
+1. [new maintainers only] Ask a maintainer for the AWS keys and credentials so you can interact with local amplify cli and access AWS console respectively
+2. Add the user gmail account to the google console as a test user (for now)
+
+
+## Installation
+
+Run `nvm use` to set the correct node version.
+
+```
+yarn                  # Install frontend dependencies
+yarn stocker:install  # Install backend dependencies
+```
+
+If not installed yet, install amplify cli with `npm install -g @aws-amplify/cli`. Then if it's your first time, you'll have to pull the amplify project:
+
+> Make sure to select your AWS profile credentials with `export AWS_PROFILE=maffin`
+
+```
+10:56 $ amplify pull
+? Select the authentication method you want to use: AWS access keys
+? accessKeyId:  ********************                           # credentials from maffin account
+? secretAccessKey:  ****************************************
+? region:  eu-central-1
+? Which app are you working on? dkycpktllbi8x
+Backend environment 'master' found. Initializing...
+? Choose your default editor: Vim (via Terminal, macOS only)
+? Choose the type of app that you're building javascript
+Please tell us about your project
+? What javascript framework are you using react
+? Source Directory Path:  src
+? Distribution Directory Path: build
+? Build Command:  yarn build
+? Start Command: yarn start
+✖ Failed to sync UI components
+? Do you plan on modifying this backend? Yes
+```
+
+## Running
+
+Run stocker with `yarn stocker:start` and then the frontend with `yarn maffin:start:`.
+
+## Deploying
+
+The project is deployed automatically everytime there is a merge to master using Amplify pipeline.

amplify.yml

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+version: 1
+backend:
+  phases:
+    build:
+      commands:
+        - '# Execute Amplify CLI with the helper script'
+        - amplifyPush --simple
+frontend:
+  phases:
+    preBuild:
+      commands:
+        - yarn install
+    build:
+      commands:
+        - rm -rf .next/
+        - yarn maffin:build
+  artifacts:
+    baseDirectory: .next
+    files:
+      - '**/*'
+  cache:
+    paths:
+      - node_modules/**/*

amplify/.config/project-config.json

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+{
+  "providers": [
+    "awscloudformation"
+  ],
+  "projectName": "maffinapp",
+  "version": "3.1",
+  "frontend": "javascript",
+  "javascript": {
+    "framework": "react",
+    "config": {
+      "SourceDir": "src",
+      "DistributionDir": "build",
+      "BuildCommand": "yarn build",
+      "StartCommand": "yarn maffin:start"
+    }
+  }
+}

amplify/backend/api/stocker/cli-inputs.json

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+{
+  "version": 1,
+  "paths": {
+    "/api/prices/live": {
+      "name": "/api/prices/live",
+      "lambdaFunction": "stockerlambda",
+      "permissions": {
+        "setting": "open"
+      }
+    },
+    "/api/funds/{isin}": {
+      "name": "/api/funds/{isin}",
+      "lambdaFunction": "stockerlambda",
+      "permissions": {
+        "setting": "open"
+      }
+    }
+  }
+}

amplify/backend/backend-config.json

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+{
+  "api": {
+    "stocker": {
+      "dependsOn": [
+        {
+          "attributes": [
+            "Name",
+            "Arn"
+          ],
+          "category": "function",
+          "resourceName": "stockerlambda"
+        }
+      ],
+      "providerPlugin": "awscloudformation",
+      "service": "API Gateway"
+    }
+  },
+  "auth": {},
+  "function": {
+    "stockerlambda": {
+      "build": true,
+      "providerPlugin": "awscloudformation",
+      "service": "Lambda"
+    }
+  },
+  "parameters": {
+    "AMPLIFY_function_stockerlambda_deploymentBucketName": {
+      "usedBy": [
+        {
+          "category": "function",
+          "resourceName": "stockerlambda"
+        }
+      ]
+    },
+    "AMPLIFY_function_stockerlambda_s3Key": {
+      "usedBy": [
+        {
+          "category": "function",
+          "resourceName": "stockerlambda"
+        }
+      ]
+    }
+  }
+}

amplify/backend/function/stockerlambda/amplify.state

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+{
+  "pluginId": "amplify-nodejs-function-runtime-provider",
+  "functionRuntime": "nodejs",
+  "useLegacyBuild": true,
+  "defaultEditorFile": "src/app.js"
+}

amplify/backend/function/stockerlambda/custom-policies.json

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+[
+  {
+    "Action": [],
+    "Resource": []
+  }
+]

amplify/backend/function/stockerlambda/function-parameters.json

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+{
+  "lambdaLayers": []
+}

amplify/backend/function/stockerlambda/src/app.js

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+const cors = require('cors');
+const express = require('express');
+const bodyParser = require('body-parser');
+const awsServerlessExpressMiddleware = require('aws-serverless-express/middleware');
+
+const yahoo = require('./yahoo');
+const helpers = require('./helpers');
+
+const app = express()
+app.use(bodyParser.json())
+app.use(awsServerlessExpressMiddleware.eventContext())
+
+
+const ALLOWED_ORIGINS = [
+  'http://localhost:3000',
+  'https://app.maffin.io',
+];
+
+app.use(cors({
+  origin: (origin, callback) => {
+    if (
+      ALLOWED_ORIGINS.indexOf(origin) !== -1
+      || origin.match(/https:\/\/.*d199ayutgsrlxn\.amplifyapp\.com/g)
+    ) {
+      callback(null, true);
+    } else {
+      callback(new Error('Not allowed by CORS'));
+    }
+  }
+}));
+
+app.get('/api/prices/live', async (req, res) => {
+  let tickers = req.query.ids;
+  if (!tickers) {
+    res.status(400).json({
+      error: 'IDS_REQUIRED',
+      description: 'You need to pass \'ids\' queryparam to select specific quotes',
+    });
+    return;
+  }
+
+  tickers = tickers.split(',');
+
+  const result = {};
+  const promises = [];
+
+  async function callAndSave(ticker) {
+    price = await yahoo.getLiveSummary(ticker);
+    result[ticker] = price;
+  }
+
+  try {
+    tickers.forEach(ticker => promises.push(callAndSave(ticker)));
+    await Promise.all(promises);
+  } catch (error) {
+    console.log(error);
+    res.status(500).json({
+      error: 'UNKNOWN_ERROR',
+      description: 'Failed to retrieve prices',
+    });
+    return;
+  }
+
+  res.json(result);
+});
+
+module.exports = app;

amplify/backend/function/stockerlambda/src/errors.js

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+class HTTPError extends Error {
+  constructor(message, status, code) {
+    super(message);
+    this.message = message;
+    this.status = status;
+    this.code = code;
+  }
+}
+
+module.exports = {
+  HTTPError,
+};

amplify/backend/function/stockerlambda/src/event.json

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+{
+  "httpMethod": "GET",
+  "path": "/api/prices/live",
+  "queryStringParameters": {
+    "ids": "IAG.MC,AIR.PA"
+  }
+}