Make a Phone Call with Twilio API on New Pub/Sub Messages from Google Cloud API

Pipedream makes it easy to connect APIs for Twilio, Google Cloud and 2,400+ other apps remarkably fast.

Trigger workflow on

New Pub/Sub Messages from the Google Cloud API

Next, do this

Make a Phone Call with the Twilio API

No credit card required

▶

Watch us build a workflow

8 min

Watch now ➜

Trusted by 1,000,000+ developers from startups to Fortune 500 companies

Developers ♥ Pipedream

Getting Started#

This integration creates a workflow with a Google Cloud trigger and Twilio action. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

Select this integration
Configure the New Pub/Sub Messages trigger
1. Connect your Google Cloud account
2. Select a Type
Configure the Make a Phone Call action
1. Connect your Twilio account
2. Select a From
3. Configure To
4. Select a Call Type
5. Configure Text
6. Configure URL
7. Select a Application SID
8. Optional- Configure Timeout
9. Optional- Configure Record
Deploy the workflow
Send a test event to validate your setup
Turn on the trigger

Details#

This integration uses pre-built, source-available components from Pipedream's GitHub repo. These components are developed by Pipedream and the community, and verified and maintained by Pipedream.

To contribute an update to an existing component or create a new component, create a PR on GitHub. If you're new to Pipedream component development, you can start with quickstarts for trigger span and action development, and then review the component API reference.

Trigger#

New Pub/Sub Messages on Google Cloud

Description:Emit new Pub/Sub topic in your GCP account. Messages published to this topic are emitted from the Pipedream source.

Version:0.1.6

Key:google_cloud-new-pubsub-messages

View on GitHub

Google Cloud Overview#

The Google Cloud API opens a world of possibilities for enhancing cloud operations and automating tasks. It empowers you to manage, scale, and fine-tune various services within the Google Cloud Platform (GCP) programmatically. With Pipedream, you can harness this power to create intricate workflows, trigger cloud functions based on events from other apps, manage resources, and analyze data, all in a serverless environment. The ability to interconnect GCP services with numerous other apps enriches automation, making it easier to synchronize data, streamline development workflows, and deploy applications efficiently.

Trigger Code#

import { PubSub } from "@google-cloud/pubsub";
import googleCloud from "../../google_cloud.app.mjs";

export default {
  key: "google_cloud-new-pubsub-messages",
  name: "New Pub/Sub Messages",
  description: "Emit new Pub/Sub topic in your GCP account. Messages published to this topic are emitted from the Pipedream source.",
  version: "0.1.6",
  type: "source",
  dedupe: "unique", // Dedupe on Pub/Sub message ID
  props: {
    googleCloud,
    http: "$.interface.http",
    db: "$.service.db",
    topicType: {
      type: "string",
      label: "Type",
      description: "Do you have an existing Pub/Sub topic, or would you like to create a new one?",
      options: [
        "existing",
        "new",
      ],
      reloadProps: true,
    },
  },
  async additionalProps() {
    const topic = {
      type: "string",
      label: "Pub/Sub Topic Name",
      description: "Select a Pub/Sub topic from your GCP account to watch",
      options: async () => {
        return this.getTopics();
      },
    };
    if (this.topicType === "new") {
      topic.description = "**Pipedream will create a Pub/Sub topic with this name in your account**, converting it to a [valid Pub/Sub topic name](https://cloud.google.com/pubsub/docs/admin#resource_names).";
      delete topic.options;
    }
    return {
      topic,
    };
  },
  methods: {
    _getTopicName() {
      return this.db.get("topicName");
    },
    _setTopicName(topicName) {
      this.db.set("topicName", topicName);
    },
    _getSubscriptionName() {
      return this.db.get("subscriptionName");
    },
    _setSubscriptionName(subscriptionName) {
      this.db.set("subscriptionName", subscriptionName);
    },
    async getTopics() {
      const sdkParams = this.googleCloud.sdkParams();
      const pubSubClient = new PubSub(sdkParams);
      const topics = (await pubSubClient.getTopics())[0];
      if (topics.length > 0) {
        return topics.map((topic) => topic.name);
      }
      return [];
    },
    convertNameToValidPubSubTopicName(name) {
      // For valid names, see https://cloud.google.com/pubsub/docs/admin#resource_names
      return name
        // Must not start with `goog`. We add a `pd-` at the beginning if that's the case.
        .replace(/(^goog.*)/g, "pd-$1")
        // Must start with a letter, otherwise we add `pd-` at the beginning.
        .replace(/^(?![a-zA-Z]+)/, "pd-")
        // Only certain characters are allowed, the rest will be replaced with a `-`.
        .replace(/[^a-zA-Z0-9_\-.~+%]+/g, "-");
    },
  },
  hooks: {
    async activate() {
      const sdkParams = this.googleCloud.sdkParams();
      const pubSubClient = new PubSub(sdkParams);

      const currentTopic = {
        name: this.topic,
      };
      if (this.topicType === "new") {
        const topicName = this.convertNameToValidPubSubTopicName(this.topic);
        console.log(`Creating Pub/Sub topic ${topicName}`);
        const [
          topic,
        ] = await pubSubClient.createTopic(topicName);
        currentTopic.name = topic.name;
      }
      this._setTopicName(currentTopic.name);

      const pushEndpoint = this.http.endpoint;
      const subscriptionName = this.convertNameToValidPubSubTopicName(pushEndpoint);
      const subscriptionOptions = {
        pushConfig: {
          pushEndpoint,
        },
      };
      console.log(
        `Subscribing this source's URL to the Pub/Sub topic: ${pushEndpoint}
        (under name ${subscriptionName}).`,
      );
      const [
        subscriptionResult,
      ] = await pubSubClient
        .topic(currentTopic.name)
        .createSubscription(subscriptionName, subscriptionOptions);
      this._setSubscriptionName(subscriptionResult.name);
    },
    async deactivate() {
      const sdkParams = this.googleCloud.sdkParams();
      const pubSubClient = new PubSub(sdkParams);

      const subscriptionName = this._getSubscriptionName();
      if (subscriptionName) {
        await pubSubClient.subscription(subscriptionName).delete();
      }

      if (this.topicType === "new") {
        const topicName = this._getTopicName();
        if (topicName) {
          await pubSubClient.topic(topicName).delete();
        }
      }
    },
  },
  async run(event) {
    const {
      data,
      messageId,
      publishTime,
    } = event.body.message;

    if (!data) {
      console.warn("No message present, exiting");
      return;
    }
    const dataString = Buffer.from(data, "base64").toString("utf-8");
    const metadata = {
      id: messageId,
      summary: dataString,
      ts: +new Date(publishTime),
    };

    let dataObj;
    try {
      dataObj = JSON.parse(dataString);
    } catch (err) {
      console.error(
        `Couldn't parse message as JSON. Emitting raw message. Error: ${err}`,
      );
      dataObj = {
        rawMessage: dataString,
      };
    }
    this.$emit(dataObj, metadata);
  },
};

Trigger Configuration#

This component may be configured based on the props defined in the component code. Pipedream automatically prompts for input values in the UI and CLI.

Label	Prop	Type	Description
Google Cloud	`googleCloud`	`app`	This component uses the Google Cloud app.
N/A	`http`	`$.interface.http`	This component uses `$.interface.http` to generate a unique URL when the component is first instantiated. Each request to the URL will trigger the `run()` method of the component.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Type	`topicType`	`string`	Select a value from the drop down menu:`existingnew`

Trigger Authentication#

Google Cloud uses API keys for authentication. When you connect your Google Cloud account, Pipedream securely stores the keys so you can easily authenticate to Google Cloud APIs in both code and no-code steps.

Create a service account in GCP and set the permissions you need for Pipedream workflows.
Generate a service account key
Download the key details in JSON format
Upload the key below.

About Google Cloud#

The Google Cloud Platform, including BigQuery

Action#

Make a Phone Call on Twilio

Description:Make a phone call passing text, a URL, or an application that Twilio will use to handle the call. [See the documentation](https://www.twilio.com/docs/voice/api/call-resource#create-a-call-resource)

Version:0.1.4

Key:twilio-make-phone-call

View on GitHub

Twilio Overview#

Twilio's API on Pipedream opens up a multitude of communication capabilities, allowing you to build robust, scalable, and automated workflows. With Twilio, you can send and receive SMS and MMS messages, make voice calls, and perform other communication functions programmatically. Leveraging Pipedream's seamless integration, you can connect these communications features with hundreds of other services to automate notifications, streamline customer interactions, and enhance operational efficiency.

Action Code#

import { phone } from "phone";
import twilio from "../../twilio.app.mjs";
import { callToString } from "../../common/utils.mjs";

export default {
  key: "twilio-make-phone-call",
  name: "Make a Phone Call",
  description: "Make a phone call passing text, a URL, or an application that Twilio will use to handle the call. [See the documentation](https://www.twilio.com/docs/voice/api/call-resource#create-a-call-resource)",
  version: "0.1.4",
  type: "action",
  props: {
    twilio,
    from: {
      propDefinition: [
        twilio,
        "from",
      ],
    },
    to: {
      propDefinition: [
        twilio,
        "to",
      ],
    },
    callType: {
      type: "string",
      label: "Call Type",
      description: "Whether to use `text`, a `URL`, or an `application` to handle the call",
      options: [
        {
          label: "Enter text for Twilio to speak when the user picks up the phone",
          value: "text",
        },
        {
          label: "Enter a URL that returns the TwiML instructions for the call",
          value: "url",
        },
        {
          label: "Enter the SID of an Application resource that will handle the call",
          value: "application",
        },
      ],
      reloadProps: true,
    },
    text: {
      label: "Text",
      type: "string",
      description: "The text you'd like Twilio to speak to the user when they pick up the phone.",
      hidden: true,
    },
    url: {
      type: "string",
      label: "URL",
      description: "The absolute URL that returns the TwiML instructions for the call",
      hidden: true,
    },
    applicationSid: {
      propDefinition: [
        twilio,
        "applicationSid",
      ],
      hidden: true,
    },
    timeout: {
      type: "integer",
      label: "Timeout",
      description: "The integer number of seconds that we should allow the phone to ring before assuming there is no answer. The default is `60` seconds and the maximum is `600` seconds.",
      optional: true,
    },
    record: {
      type: "boolean",
      label: "Record",
      description: "Whether to record the call",
      optional: true,
      reloadProps: true,
    },
  },
  async additionalProps(existingProps) {
    const props = {};
    existingProps.text.hidden = !(this.callType === "text");
    existingProps.url.hidden = !(this.callType === "url");
    existingProps.applicationSid.hidden = !(this.callType === "application");
    if (this.record) {
      props.trim = {
        type: "string",
        label: "Trim",
        description: "Whether to trim any leading and trailing silence from the recording",
        options: [
          "trim-silence",
          "do-not-trim",
        ],
        optional: true,
      };
      props.recordingTrack = {
        type: "string",
        label: "Recording Track",
        description: "The audio track to record for the call. Default is `both`.",
        options: [
          "inbound",
          "outbound",
          "both",
        ],
        optional: true,
      };
      props.recordingCallbackUrl = {
        type: "string",
        label: "Recording Callback URL",
        description: "The URL that we call when the recording is available to be accessed",
        optional: true,
      };
    }
    return props;
  },
  async run({ $ }) {
    // Parse the given number into its E.164 equivalent
    // The E.164 phone number will be included in the first element
    // of the array, but the array will be empty if parsing fails.
    // See https://www.npmjs.com/package/phone
    const toParsed = phone(this.to);
    console.log(toParsed);
    if (!toParsed || !toParsed.phoneNumber) {
      throw new Error(`Phone number ${this.to} could not be parsed as a valid number.`);
    }

    const fromParsed = phone(this.from);
    if (!fromParsed || !fromParsed.phoneNumber) {
      throw new Error(`Phone number ${this.from} could not be parsed as a valid number.`);
    }

    const data = {
      to: toParsed.phoneNumber,
      from: fromParsed.phoneNumber,
      twiml: this.text && `<Response><Say>${this.text}</Say></Response>`,
      url: this.url,
      applicationSid: this.applicationSid,
      timeout: this.timeout,
      record: this.record,
      trim: this.trim,
      recordingTrack: this.recordingTrack,
      recordingStatusCallback: this.recordingCallbackUrl,
    };

    const resp = await this.twilio.getClient().calls.create(data);
    $.export("$summary", `Successfully made a new phone call, "${callToString(resp)}"`);
    return resp;
  },
};

Action Configuration#

This component may be configured based on the props defined in the component code. Pipedream automatically prompts for input values in the UI.

Label	Prop	Type	Description
Twilio	`twilio`	`app`	This component uses the Twilio app.
From	`from`	`string`	Select a value from the drop down menu.
To	`to`	`string`	The destination phone number in E.164 format. Format with a `+` and country code (e.g., `+16175551212`).
Call Type	`callType`	`string`	Select a value from the drop down menu:`{ "label": "Enter text for Twilio to speak when the user picks up the phone", "value": "text" }{ "label": "Enter a URL that returns the TwiML instructions for the call", "value": "url" }{ "label": "Enter the SID of an Application resource that will handle the call", "value": "application" }`
Timeout	`timeout`	`integer`	The integer number of seconds that we should allow the phone to ring before assuming there is no answer. The default is `60` seconds and the maximum is `600` seconds.
Record	`record`	`boolean`	Whether to record the call

Action Authentication#

Twilio uses API keys for authentication. When you connect your Twilio account, Pipedream securely stores the keys so you can easily authenticate to Twilio APIs in both code and no-code steps.

To connect your Twilio account to Pipedream,

API Key and API Key SID

First, create an API key in Twilio.

There are three types of keys: Main, Standard, and Restricted. You'll need a Main key to interact with certain API endpoints, like /Accounts.
If you don't need to interact with those endpoints, you can use a Standard or Restricted key.

After creating your key, you'll see fields for Sid and Secret. Enter those in the fields below.

Account SID and Auth Token

Visit your Twilio Dashboard. You'll see your Account SID and Auth Token under Account info.

About Twilio#

Twilio is a cloud communications platform for building SMS, Voice & Messaging applications on an API built for global scale.

More Ways to Connect Twilio + Google Cloud#

Other Popular Integrations#

Logging - Write Log with Google Cloud API on New Incoming SMS from Twilio API

Twilio + Google Cloud