feat(trello): add trello integration (#1380)

packages/backend/src/apps/trello/assets/favicon.svg

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+<svg xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" role="presentation" focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M3 5C3 3.89543 3.89543 3 5 3H19C20.1046 3 21 3.89543 21 5V19C21 20.1046 20.1046 21 19 21H5C3.89543 21 3 20.1046 3 19V5ZM5 6C5 5.44772 5.44772 5 6 5H10C10.5523 5 11 5.44772 11 6V16C11 16.5523 10.5523 17 10 17H6C5.44772 17 5 16.5523 5 16V6ZM14 5C13.4477 5 13 5.44772 13 6V12C13 12.5523 13.4477 13 14 13H18C18.5523 13 19 12.5523 19 12V6C19 5.44772 18.5523 5 18 5H14Z" fill="#0079bf"></path></svg>

packages/backend/src/apps/trello/auth/generate-auth-url.ts

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+import { IField, IGlobalVariable } from '@automatisch/types';
+import { URLSearchParams } from 'url';
+import authScope from '../common/auth-scope';
+
+export default async function generateAuthUrl($: IGlobalVariable) {
+  const oauthRedirectUrlField = $.app.auth.fields.find(
+    (field: IField) => field.key == 'oAuthRedirectUrl'
+  );
+  const redirectUri = oauthRedirectUrlField.value as string;
+  const searchParams = new URLSearchParams({
+    return_url: redirectUri,
+    scope: authScope.join(','),
+    expiration: 'never',
+    key: $.auth.data.apiKey as string,
+    response_type: 'token',
+  });
+
+  const url = `https://trello.com/1/authorize?${searchParams.toString()}`;
+
+  await $.auth.set({
+    url,
+  });
+}

packages/backend/src/apps/trello/auth/index.ts

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+import generateAuthUrl from './generate-auth-url';
+import verifyCredentials from './verify-credentials';
+import isStillVerified from './is-still-verified';
+
+export default {
+  fields: [
+    {
+      key: 'oAuthRedirectUrl',
+      label: 'OAuth Redirect URL',
+      type: 'string' as const,
+      required: true,
+      readOnly: true,
+      value: '{WEB_APP_URL}/app/trello/connections/add',
+      placeholder: null,
+      description: '',
+      clickToCopy: true,
+    },
+    {
+      key: 'apiKey',
+      label: 'API Key',
+      type: 'string' as const,
+      required: true,
+      readOnly: false,
+      value: null,
+      placeholder: null,
+      description: 'API Key for your Trello account',
+      clickToCopy: false,
+    },
+  ],
+
+  generateAuthUrl,
+  verifyCredentials,
+  isStillVerified,
+};

packages/backend/src/apps/trello/auth/is-still-verified.ts

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+import { IGlobalVariable } from '@automatisch/types';
+import verifyCredentials from './verify-credentials';
+
+const isStillVerified = async ($: IGlobalVariable) => {
+  await verifyCredentials($);
+  return true;
+};
+
+export default isStillVerified;

packages/backend/src/apps/trello/auth/verify-credentials.ts

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+import { IGlobalVariable } from '@automatisch/types';
+import getCurrentUser from '../common/get-current-user';
+
+const verifyCredentials = async ($: IGlobalVariable) => {
+  const currentUser = await getCurrentUser($);
+  const screenName = [currentUser.username, currentUser.email]
+    .filter(Boolean)
+    .join(' @ ');
+
+  await $.auth.set({
+    screenName,
+  });
+};
+
+export default verifyCredentials;

packages/backend/src/apps/trello/common/add-auth-header.ts

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+import { TBeforeRequest } from '@automatisch/types';
+
+const addAuthHeader: TBeforeRequest = ($, requestConfig) => {
+  if ($.auth.data?.token) {
+    requestConfig.headers.Authorization = `OAuth oauth_consumer_key="${$.auth.data.apiKey}", oauth_token="${$.auth.data.token}"`;
+  }
+
+  return requestConfig;
+};
+
+export default addAuthHeader;

packages/backend/src/apps/trello/common/auth-scope.ts

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+const authScope: string[] = ['read', 'write', 'account'];
+
+export default authScope;

packages/backend/src/apps/trello/common/get-current-user.ts

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+import { IGlobalVariable, IJSONObject } from '@automatisch/types';
+
+const getCurrentUser = async ($: IGlobalVariable): Promise<IJSONObject> => {
+  const response = await $.http.get('/1/members/me/');
+  const currentUser = response.data;
+
+  return currentUser;
+};
+
+export default getCurrentUser;

packages/backend/src/apps/trello/index.ts

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+import defineApp from '../../helpers/define-app';
+import addAuthHeader from './common/add-auth-header';
+import auth from './auth';
+
+export default defineApp({
+  name: 'Trello',
+  key: 'trello',
+  baseUrl: 'https://trello.com/',
+  apiBaseUrl: 'https://api.trello.com',
+  iconUrl: '{BASE_URL}/apps/trello/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/apps/trello/connection',
+  supportsConnections: true,
+  primaryColor: '0079bf',
+  beforeRequest: [addAuthHeader],
+  auth,
+});