Merge pull request #43 from dolittle/projections-api

Projections api

Author: jakhog

Samples/Advanced/package.json

@@ -11,10 +11,10 @@
         "build": "tsc -p ./tsconfig.json"
     },
     "dependencies": {
-        "@dolittle/sdk": "13.0.0",
-        "@dolittle/sdk.artifacts": "13.0.0",
-        "@dolittle/sdk.events": "13.0.0",
-        "@dolittle/sdk.events.handling": "13.0.0"
+        "@dolittle/sdk": "14.2.0",
+        "@dolittle/sdk.artifacts": "14.2.0",
+        "@dolittle/sdk.events": "14.2.0",
+        "@dolittle/sdk.events.handling": "14.2.0"
     },
     "devDependencies": {
         "nodemon": "^2.0.4",

Samples/Tutorials/Aggregates/Kitchen.ts

@@ -8,7 +8,7 @@ import { DishPrepared } from './DishPrepared';
 
 @aggregateRoot('e5b17be9-4873-4526-99a1-76a5c31c0dad')
 export class Kitchen extends AggregateRoot {
-    private _counter: number = 0;
+    private _counter = 0;
 
     constructor(eventSourceId: EventSourceId) {
         super(eventSourceId);

Samples/Tutorials/Projections/.eslintrc.js

@@ -0,0 +1,10 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+module.exports = {
+    extends: '../../../.eslintrc.js',
+    rules: {
+        'no-restricted-globals': 'off',
+        '@typescript-eslint/naming-convention' : 'off'
+    }
+};

Samples/Tutorials/Projections/Chef.ts

@@ -0,0 +1,10 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+
+export class Chef {
+    constructor(
+        public name: string = '',
+        public dishes: string[] = []
+    ) { }
+}

Samples/Tutorials/Projections/ChefFired.ts

@@ -0,0 +1,10 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+
+import { eventType } from '@dolittle/sdk.events';
+
+@eventType('b3a31696-4cfd-4225-8b7e-72d1c02d93d5')
+export class ChefFired {
+    constructor(readonly Chef: string) {}
+}

Samples/Tutorials/Projections/Chefs.ts

@@ -0,0 +1,11 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+
+import { Chef } from './Chef';
+
+export class Chefs {
+    constructor(
+        public chefArray: Chef[] = []
+    ) {}
+}

Samples/Tutorials/Projections/DishPrepared.ts

@@ -0,0 +1,10 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+
+import { eventType } from '@dolittle/sdk.events';
+
+@eventType('1844473f-d714-4327-8b7f-5b3c2bdfc26a')
+export class DishPrepared {
+    constructor(readonly Dish: string, readonly Chef: string) {}
+}

Samples/Tutorials/Projections/Menu.ts

@@ -0,0 +1,19 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+
+import { EventContext } from '@dolittle/sdk.events';
+import { on, projection } from '@dolittle/sdk.projections';
+import { DishPrepared } from './DishPrepared';
+
+@projection('5b22e60e-f8db-494e-af5c-e8728acb2470')
+export class Menu {
+    dishes: string[] = [];
+
+    @on(DishPrepared, _ => _.keyFromEventSource())
+    on(event: DishPrepared, ctx: EventContext) {
+        if (!this.dishes.includes(event.Dish)) {
+            this.dishes.push(event.Dish);
+        }
+    }
+}

Samples/Tutorials/Projections/for_Dummy/when_nothing.ts

@@ -0,0 +1,6 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+describe('when nothing', () => {
+    it('should be fine', () => true.should.be.true);
+});

Samples/Tutorials/Projections/index.ts

@@ -0,0 +1,55 @@
+// Copyright (c) Dolittle. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// Sample code for the tutorial at https://dolittle.io/tutorials/getting-started/projections/
+
+import { Client } from '@dolittle/sdk';
+import { TenantId } from '@dolittle/sdk.execution';
+import { projection, ProjectionResult } from '@dolittle/sdk.projections';
+import { Menu } from './Menu';
+import { Chef } from './Chef';
+import { ChefFired } from './ChefFired';
+import { DishPrepared } from './DishPrepared';
+
+const client = Client
+    .forMicroservice('f39b1f61-d360-4675-b859-53c05c87c0e6')
+    .withEventTypes(eventTypes => {
+        eventTypes.register(DishPrepared);
+        eventTypes.register(ChefFired);
+    })
+    .withProjections(projections => {
+        // projections.createProjection('4a4c5b13-d4dd-4665-a9df-27b8e9b2054c')
+        //     .forReadModel(Chef)
+        //     .on(DishPrepared, _ => _.keyFromProperty('Chef'), (chef, event, ctx) => {
+        //         console.log(`Handling event ${JSON.stringify(event)} and read model ${JSON.stringify(chef)}`);
+        //         chef.name = event.Chef;
+        //         chef.dishes.push(event.Dish);
+        //         return chef;
+        //     });
+            // .on(ChefFired, _ => _.keyFromProperty('Chef'), (chef, event, ctx) => {
+            //     console.log(`Firing ${chef.name}`);
+            //     return ProjectionResult.delete;
+            // });
+        projections.register(Menu);
+        })
+    .build();
+
+const beanBlaster = new DishPrepared('Bean Blaster Taco', 'Mr. Taco');
+const avocadoArtillery = new DishPrepared('Avocado Artillery Tortilla', 'Mr. Taco');
+const chiliCannon = new DishPrepared('Chili Cannon Wrap', 'Ms. TexMex');
+const mrTacoFired = new ChefFired('Mr. Taco');
+
+console.log('starting comit');
+client.eventStore
+    .forTenant(TenantId.development)
+    .commit(beanBlaster, 'bfe6f6e4-ada2-4344-8a3b-65a3e1fe16e9');
+client.eventStore
+    .forTenant(TenantId.development)
+    .commit(avocadoArtillery, 'bfe6f6e4-ada2-4344-8a3b-65a3e1fe16e9');
+client.eventStore
+    .forTenant(TenantId.development)
+    .commit(chiliCannon, 'bfe6f6e4-ada2-4344-8a3b-65a3e1fe16e9');
+
+client.eventStore
+    .forTenant(TenantId.development)
+    .commit(mrTacoFired, 'bfe6f6e4-ada2-4344-8a3b-65a3e1fe16e9');
+console.log('done comitng');