feat: Implement datastore built-in app

packages/backend/src/apps/datastore/actions/get-value/index.js

@@ -0,0 +1,27 @@
+import defineAction from '../../../../helpers/define-action.js';
+
+export default defineAction({
+  name: 'Get value',
+  key: 'getValue',
+  description: 'Get value from the persistent datastore',
+  arguments: [
+    {
+      label: 'Key',
+      key: 'key',
+      type: 'string',
+      required: true,
+      description: 'The key of your value to get.',
+      variables: true,
+    },
+  ],
+
+  async run($) {
+    const keyValuePair = await $.datastore.get({
+      key: $.step.parameters.key,
+    });
+
+    $.setActionItem({
+      raw: keyValuePair,
+    });
+  },
+});

packages/backend/src/apps/datastore/actions/index.js

@@ -0,0 +1,4 @@
+import getValue from './get-value/index.js';
+import setValue from './set-value/index.js';
+
+export default [getValue, setValue];

packages/backend/src/apps/datastore/actions/set-value/index.js

@@ -0,0 +1,36 @@
+import defineAction from '../../../../helpers/define-action.js';
+
+export default defineAction({
+  name: 'Set value',
+  key: 'setValue',
+  description: 'Set value to the persistent datastore',
+  arguments: [
+    {
+      label: 'Key',
+      key: 'key',
+      type: 'string',
+      required: true,
+      description: 'The key of your value to set.',
+      variables: true,
+    },
+    {
+      label: 'Value',
+      key: 'value',
+      type: 'string',
+      required: true,
+      description: 'The value to set.',
+      variables: true,
+    },
+  ],
+
+  async run($) {
+    const keyValuePair = await $.datastore.set({
+      key: $.step.parameters.key,
+      value: $.step.parameters.value,
+    });
+
+    $.setActionItem({
+      raw: keyValuePair,
+    });
+  },
+});

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

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<svg xmlns="http://www.w3.org/2000/svg" fill="#000000" width="800px" height="800px" viewBox="0 0 32 32" id="icon">
+  <defs>
+    <style>.cls-1{fill:none;}</style>
+  </defs>
+  <title>datastore</title>
+  <circle cx="23" cy="23" r="1"/>
+  <rect x="8" y="22" width="12" height="2"/>
+  <circle cx="23" cy="9" r="1"/>
+  <rect x="8" y="8" width="12" height="2"/>
+  <path d="M26,14a2,2,0,0,0,2-2V6a2,2,0,0,0-2-2H6A2,2,0,0,0,4,6v6a2,2,0,0,0,2,2H8v4H6a2,2,0,0,0-2,2v6a2,2,0,0,0,2,2H26a2,2,0,0,0,2-2V20a2,2,0,0,0-2-2H24V14ZM6,6H26v6H6ZM26,26H6V20H26Zm-4-8H10V14H22Z"/>
+  <rect id="_Transparent_Rectangle_" data-name="&lt;Transparent Rectangle&gt;" class="cls-1" width="32" height="32"/>
+</svg>

packages/backend/src/apps/datastore/index.js

@@ -0,0 +1,14 @@
+import defineApp from '../../helpers/define-app.js';
+import actions from './actions/index.js';
+
+export default defineApp({
+  name: 'Datastore',
+  key: 'datastore',
+  iconUrl: '{BASE_URL}/apps/datastore/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/apps/datastore/connection',
+  supportsConnections: false,
+  baseUrl: '',
+  apiBaseUrl: '',
+  primaryColor: '001F52',
+  actions,
+});

packages/backend/src/db/migrations/20240227164849_create_datastore_model.js

@@ -0,0 +1,16 @@
+export async function up(knex) {
+  return knex.schema.createTable('datastore', (table) => {
+    table.uuid('id').primary().defaultTo(knex.raw('gen_random_uuid()'));
+    table.string('key').notNullable();
+    table.string('value');
+    table.string('scope').notNullable();
+    table.uuid('scope_id').notNullable();
+    table.index(['key', 'scope', 'scope_id']);
+
+    table.timestamps(true, true);
+  });
+}
+
+export async function down(knex) {
+  return knex.schema.dropTable('datastore');
+}

packages/backend/src/helpers/global-variable.js

@@ -1,6 +1,7 @@
 import createHttpClient from './http-client/index.js';
 import EarlyExitError from '../errors/early-exit.js';
 import AlreadyProcessedError from '../errors/already-processed.js';
+import Datastore from '../models/datastore.js';
 
 const globalVariable = async (options) => {
   const {
@@ -88,6 +89,43 @@ const globalVariable = async (options) => {
     setActionItem: (actionItem) => {
       $.actionOutput.data = actionItem;
     },
+    datastore: {
+      get: async ({ key }) => {
+        const datastore = await Datastore.query().findOne({
+          key,
+          scope: 'flow',
+          scope_id: $.flow.id,
+        });
+
+        return {
+          key: datastore.key,
+          value: datastore.value,
+          [datastore.key]: datastore.value,
+        };
+      },
+      set: async ({ key, value }) => {
+        let datastore = await Datastore.query()
+          .where({ key, scope: 'flow', scope_id: $.flow.id })
+          .first();
+
+        if (datastore) {
+          await datastore.$query().patchAndFetch({ value: value });
+        } else {
+          datastore = await Datastore.query().insert({
+            key,
+            value,
+            scope: 'flow',
+            scopeId: $.flow.id,
+          });
+        }
+
+        return {
+          key: datastore.key,
+          value: datastore.value,
+          [datastore.key]: datastore.value,
+        };
+      },
+    },
   };
 
   if (request) {

packages/backend/src/models/datastore.js

@@ -0,0 +1,24 @@
+import Base from './base.js';
+
+class Datastore extends Base {
+  static tableName = 'datastore';
+
+  static jsonSchema = {
+    type: 'object',
+    required: ['key', 'value', 'scope', 'scopeId'],
+
+    properties: {
+      id: { type: 'string', format: 'uuid' },
+      key: { type: 'string', minLength: 1 },
+      value: { type: 'string', minLength: 1 },
+      scope: {
+        type: 'string',
+        enum: ['flow'],
+        default: 'flow',
+      },
+      scopeId: { type: 'string', format: 'uuid' },
+    },
+  };
+}
+
+export default Datastore;