How to use @pulumi/cloud - 10 common examples

constructor(name: string, memory: number = 128) {
        let redis = new cloud.Service(name, {
            containers: {
                redis: {
                    image: "redis:alpine",
                    memory: memory,
                    ports: [{ port: 6379 }],
                    command: ["redis-server", "--requirepass", redisPassword],
                },
            },
        });
        this.get = (key: string) => {
            return redis.getEndpoint("redis", 6379).then(endpoint => {
                // console.log(`Endpoint: ${JSON.stringify(endpoint)}`);
                let client = require("redis").createClient(
                    endpoint.port,
                    endpoint.hostname,
                    { password: redisPassword },

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import * as cloud from "@pulumi/cloud";
import * as nodeFetchModule from "node-fetch";
import { canonicalUrl, hostname} from "./support";
import * as express from "express";

// Pending sites to be processed
let sites = new cloud.Topic("examples-sites-to-process");

// Documents and associated metadata for crawled sites
let documents = new cloud.Table("examples-documents");

// Front end API and console
let frontEnd = new cloud.HttpServer("examples-crawler-front-end", () => {
    const app = express();

    app.post("/queue", async (req, res) => {
        let url = req.body.toString();
        console.log(`Pushing ${url} to processing queue`);
        await sites.publish(url);
        res.status(200).json("success");
    });

    app.get("/documents/stats", async (_, res) => res.json({count: (await documents.scan()).length}));

    return app;
});

// Copyright 2016-2018, Pulumi Corporation.  All rights reserved.

import * as pulumi from "@pulumi/pulumi";
import * as cloud from "@pulumi/cloud";
import * as cache from "./cache";

// Create a web server.
let endpoint = new cloud.HttpEndpoint("urlshortener");

// Create a table `urls`, with `name` as primary key.
let urlTable = new cloud.Table("urls", "name"); 

// Create a cache of frequently accessed urls.
let urlCache = new cache.Cache("urlcache");

// Serve all files in the www directory to the root.
endpoint.static("/", "www");

// GET /url lists all URLs currently registered.
endpoint.get("/url", async (req, res) => {
    try {
        let items = await urlTable.scan();
        res.status(200).json(items);
        console.log(`GET /url retrieved ${items.length} items`);
    } catch (err) {
        res.status(500).json(err.stack);
        console.log(`GET /url error: ${err.stack}`);

var v: TemplateStringsArray

import * as cloud from "@pulumi/cloud";
import { authMiddleware } from "./middleware";
import * as express from "express";
import * as bodyParser from "body-parser";

type AsyncRequestHandler = (req: express.Request, res: express.Response, next: express.NextFunction) => Promise;

const asyncMiddleware = (fn: AsyncRequestHandler) =>
    (req: express.Request, res: express.Response, next: express.NextFunction) => {
        Promise.resolve(fn(req, res, next)).catch(next);
    };

let todos = new cloud.Table("examples-todo");
let server = new cloud.HttpServer("examples-todo", () => {
    const app = express();

    // Serve all files in the 'www' folder under '/'
    // 'index.html' will be automatically served as '/' as well as '/index.html'.
    app.use("/", express.static("www"));

    // GET/POST todo handlers
    app.get("/todo/:id", authMiddleware, asyncMiddleware(async (req, res) => {
        console.log("GET /todo/" + req.params["id"]);
        try {
            let item = await todos.get({ id: req.params["id"] });
            res.status(200).json(item.value);
        } catch (err) {
            res.status(500).json(err);
        }

//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import * as cloud from "@pulumi/cloud";

// A poll function takes an opaque token generated from the last execution (or undefined), and
// returns any new items since the last invocation, along with a new token to be used with the
// next invocation.
export type PollFunction = (lastToken?: string) => Promise<{ items: T[]; nextToken: string; }>;

let pollMarkers = new cloud.Table("__pollMarkers");

// poll represents a stream of items which are derived from polling at a given rate
// using a user-provided polling function.
export function poll(name: string, rate: cloud.timer.IntervalRate, poller: PollFunction): cloud.Stream {
    let topic = new cloud.Topic(name);

    cloud.timer.interval(name, rate, async () => {
        console.log(`Starting polling...`);

        console.log(`Getting pollMarker for ${name}`);
        let pollMarker = await pollMarkers.get({id: name});
        console.log(`pollMarker is ${JSON.stringify(pollMarker, null, "")}`);

        let lastToken: string | undefined;
        if (pollMarker !== undefined) {
            lastToken = pollMarker.lastToken;

export function exampleTwitter2() {
    console.log("Running Twitter example 2...");

    // Get a stream of all tweets matching this query, forever...
    let tweets: cloud.Stream = twitter.search("pulumi", "vscode");

    // Collect them into bunches
    let digest = new Digest("tweetdigest", tweets);

    // Every night, take all of the tweets collected since the
    // last digest and publish that as a group to the digest stream.
    cloud.timer.daily("nightly", { hourUTC: 7 },  async () => {
        await digest.collect();
    });

    // For every group of tweets published to the digest stream (nightly)
    // send an email.
    digest.subscribe("digest", async (dailyTweets) => {
        if (dailyTweets.length === 0) {
            console.log("No new tweets...");
            return;
        }

        console.log(`Received ${dailyTweets.length} new tweets.  Sending email...`);

        // Arbitrary code to compose email body - could use templating system or
        // any other programmatic way of constructing the text.
        let text = "Tweets:\n";

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import * as pulumi from "@pulumi/cloud";

let countDown = new pulumi.Topic("examples-countDown");

countDown.subscribe("watcher", async (num) => {
    console.log(num);
    if (num > 0) {
        await countDown.publish(num - 1);
    }
});

pulumi.timer.interval("examples-heartbeat", {minutes: 3}, async () => {
    await countDown.publish(25);
});

found = await documents.get({id: link});
        if (!found) {
            console.log(`${url}: Publishing new url: ${link}`);
            await sites.publish(link);
        }
    }

    // Register that we completed publishing all referened URLs from this site.  We can recover from
    // failures by re-crawling any sites with `crawlInProgress == true`.
    await documents.update({ id: url }, { crawlInProgress: false, crawlFinishedDate: Date.now() });
    console.log("Succeed url: " + url);
});

// Periodically check for any URLs which did not complete processing
// and try them again (for example, in case they failed due to throttling).
cloud.timer.interval("cleanup", {minutes: 5}, async () => {
    console.log(`Cleanup: starting cleanup.`);
    let cleanupCount = 0;
    let alldocs = await documents.scan();
    console.log(`Cleanup: scan returned ${alldocs.length} documents.`);
    for (let doc of alldocs) {
        if (doc.crawlInProgress) {
            await sites.publish(doc.id);
            cleanupCount++;
        }
    }
    console.log(`Cleanup: restarted ${cleanupCount} items.`);
});

//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import * as cloud from "@pulumi/cloud";
import * as pulumi from "@pulumi/pulumi";

let config = new pulumi.Config("timers:config");
let message = config.require("message");

cloud.timer.interval("examples-test-interval1", { minutes: 1 }, async () => {
    console.log(`test-interval[${Date.now()}]: ${message}`);
});

cloud.timer.interval("examples-test-interval2", { minutes: 59 }, async () => {
    console.log(`test-interval[${Date.now()}]: ${message}`);
});

cloud.timer.interval("examples-test-interval3", { minutes: 120 }, async () => {
    console.log(`test-interval[${Date.now()}]: ${message}`);
});

cloud.timer.interval("examples-test-interval4", { minutes: 120, hours: 2 }, async () => {
    console.log(`test-interval[${Date.now()}]: ${message}`);
});

cloud.timer.interval("examples-test-interval5", { days: 24 }, async () => {

// build an anonymous image:
let builtService = new cloud.Service("examples-nginx2", {
    containers: {
        nginx: {
            build: "./app",
            memory: 128,
            ports: [{ port: 80 }],
        },
    },
    replicas: 2,
    waitForSteadyState: false,
});

// expose some APIs meant for testing purposes.
let api = new cloud.API("examples-containers");
api.get("/test", async (req, res) => {
    try {
        res.json({
            nginx: await nginx.getEndpoint(),
            nginx2: await builtService.getEndpoint(),
        });
    } catch (err) {
        console.error(errorJSON(err));
        res.status(500).json(errorJSON(err));
    }
});

function errorJSON(err: any) {
    const result: any = Object.create(null);
    Object.getOwnPropertyNames(err).forEach(key => result[key] = err[key]);
    return result;