← Pipedream + Mailgun integrations

Send Email with Mailgun API on New Scheduled Tasks from Pipedream API

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New Scheduled Tasks from the Pipedream API
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Send Email with the Mailgun API
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Trusted by 250,000+ developers from startups to Fortune 500 companies

Developers Pipedream

Getting Started

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

  1. Select this integration
  2. Configure the New Scheduled Tasks trigger
    1. Connect your Pipedream account
    2. Optional- Configure Secret
  3. Configure the Send Email action
    1. Connect your Mailgun account
    2. Select a Domain Name
    3. Configure From Name
    4. Configure From Email
    5. Optional- Configure Reply-To
    6. Configure To
    7. Configure Subject
    8. Optional- Configure Message Body (text)
    9. Optional- Configure Message Body (HTML)
    10. Configure Send in test mode?
    11. Optional- Configure Use DKIM?
    12. Optional- Configure Use Tracking?
    13. Configure Halt on error?
  4. Deploy the workflow
  5. Send a test event to validate your setup
  6. Turn on the trigger

Details

This integration uses pre-built, open source 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

Description:Exposes an HTTP API for scheduling messages to be emitted at a future time
Version:0.1.0
Key:pipedream-new-scheduled-tasks

Trigger Code

import pipedream from "../../pipedream.app.mjs";
import { uuid } from "uuidv4";

export default {
  key: "pipedream-new-scheduled-tasks",
  name: "New Scheduled Tasks",
  type: "source",
  description:
    "Exposes an HTTP API for scheduling messages to be emitted at a future time",
  version: "0.1.0",
  dedupe: "unique", // Dedupe on a UUID generated for every scheduled task
  props: {
    pipedream,
    secret: {
      type: "string",
      secret: true,
      label: "Secret",
      optional: true,
      description:
        "**Optional but recommended**: if you enter a secret here, you must pass this value in the `x-pd-secret` HTTP header when making requests",
    },
    http: {
      label: "Endpoint",
      description: "The endpoint where you'll send task scheduler requests",
      type: "$.interface.http",
      customResponse: true,
    },
    db: "$.service.db",
  },
  methods: {
    // To schedule future emits, we emit to the selfChannel of the component
    selfChannel() { return "self"; },
    // Queue for future emits that haven't yet been delivered
    queuedEventsChannel() { return "$in"; },
  },
  async run(event) {
    const {
      body,
      headers,
      path,
      $channel,
      $id,
    } = event;

    const componentId = process.env.PD_COMPONENT;
    const selfChannel = this.selfChannel();
    const inChannel = this.queuedEventsChannel();

    // Subscribe the component to itself. We do this here because even in
    // the activate hook, the component isn't available to take subscriptions.
    // Scheduled tasks are sent to the self channel, which emits the message at
    // the specified delivery_ts to this component.
    const isSubscribedToSelf = this.db.get("isSubscribedToSelf");
    if (!isSubscribedToSelf) {
      console.log(`Subscribing to ${selfChannel} channel for event source`);
      console.log(
        await this.pipedream.subscribe(componentId, componentId, selfChannel),
      );
      this.db.set("isSubscribedToSelf", true);
    }

    // SCHEDULE NEW TASK
    if (path === "/schedule") {
      const {
        timestamp,
        message,
      } = body;
      const errors = [];

      // timestamp should be an ISO 8601 string. Parse and check
      // for validity below.
      const epoch = Date.parse(timestamp);

      // Secrets are optional, so we first check if the user configured
      // a secret, then check its value against the prop (validation below)
      if (this.secret && headers["x-pd-secret"] !== this.secret) {
        errors.push(
          "Secret on incoming request doesn't match the configured secret",
        );
      }
      if (!timestamp) {
        errors.push(
          "No timestamp included in payload. Please provide an ISO8601 timestamp in the 'timestamp' field",
        );
      }
      if (timestamp && !epoch) {
        errors.push("Timestamp isn't a valid ISO 8601 string");
      }
      if (!message) {
        errors.push("No message passed in payload");
      }
      if (errors.length) {
        console.log(errors);
        this.http.respond({
          status: 400,
          body: {
            errors,
          },
          headers: {
            "content-type": "application/json",
          },
        });
        return;
      }

      const $id = uuid();
      this.$emit(
        {
          ...body,
          $channel: selfChannel,
          $id,
        },
        {
          name: selfChannel,
          id: $id,
          delivery_ts: epoch,
        },
      );

      this.http.respond({
        status: 200,
        body: {
          msg: "Successfully scheduled task",
          id: $id,
        },
        headers: {
          "Content-Type": "application/json",
        },
      });

      return;
    }

    // CANCEL SCHEDULED TASK
    // The user must pass a scheduled event UUID they'd like to cancel
    // We lookup the event by ID and delete it
    if (path === "/cancel") {
      const { id } = body;

      if (this.secret && headers["x-pd-secret"] !== this.secret) {
        this.http.respond({
          status: 400,
          body: {
            msg: "Secret on incoming request doesn't match the configured secret",
          },
          headers: {
            "content-type": "application/json",
          },
        });
        return;
      }

      let msg, status;
      try {
        // List events in the $in channel - the queue of
        // scheduled events, to be emitted in the future
        const events = await this.pipedream.listEvents(
          componentId,
          inChannel,
        );
        console.log("Events: ", events);

        // Find the event in the list by id
        const eventToCancel = events.data.find((e) => {
          const { metadata } = e;
          return metadata.id === id;
        });

        console.log("Event to cancel: ", eventToCancel);

        if (!eventToCancel) {
          console.log(`No event with ${id} found`);
          this.http.respond({
            status: 404,
            body: {
              msg: `No event with ${id} found`,
            },
          });
          return;
        }

        // Delete the event
        console.log(
          await this.pipedream.deleteEvent(
            componentId,
            eventToCancel.id,
            inChannel,
          ),
        );
        status = 200;
        msg = `Cancelled scheduled task for event ${id}`;
      } catch (err) {
        status = 500;
        msg = "Failed to schedule task. Please see the logs";
        console.log(err);
      }

      this.http.respond({
        status,
        body: {
          msg,
        },
        headers: {
          "content-type": "application/json",
        },
      });

      return;
    }

    // INCOMING SCHEDULED EMIT
    if ($channel === selfChannel) {
      // Delete the channel name and id from the incoming event,
      // which were used only as metadata
      delete event.$channel;
      delete event.$id;
      this.$emit(event, {
        summary: JSON.stringify(event),
        id: $id,
        ts: +new Date(),
      });
    }
  },
};

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.
LabelPropTypeDescription
PipedreampipedreamappThis component uses the Pipedream app.
Secretsecretstring

Optional but recommended: if you enter a secret here, you must pass this value in the x-pd-secret HTTP header when making requests

N/Ahttp$.interface.httpThis component uses $.interface.http to generate a unique URL when the component is first instantiated. Each request to the URL will trigger the run() method of the component.
N/Adb$.service.dbThis component uses $.service.db to maintain state between component invocations.

Trigger Authentication

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

Enter the API key from your Pipedream Account Settings

About Pipedream

Integration platform for developers

Action

Description:Send email with Mailgun. [See the docs here](https://documentation.mailgun.com/en/latest/api-sending.html#sending)
Version:0.0.29
Key:mailgun-send-email

Action Code

import mailgun from "../../mailgun.app.mjs";
import common from "../common.mjs";

export default {
  ...common,
  key: "mailgun-send-email",
  name: "Send Email",
  description: "Send email with Mailgun. [See the docs here](https://documentation.mailgun.com/en/latest/api-sending.html#sending)",
  version: "0.0.29",
  type: "action",
  props: {
    mailgun,
    domain: {
      propDefinition: [
        mailgun,
        "domain",
      ],
    },
    fromName: {
      propDefinition: [
        mailgun,
        "name",
      ],
      label: "From Name",
      description: "Sender name",
    },
    from: {
      propDefinition: [
        mailgun,
        "emailString",
      ],
      label: "From Email",
      description: "Sender email address",
    },
    /* eslint-disable pipedream/default-value-required-for-optional-props */
    replyTo: {
      propDefinition: [
        mailgun,
        "emailString",
      ],
      label: "Reply-To",
      description: "Sender reply email address",
      optional: true,
    },
    /* eslint-enable pipedream/default-value-required-for-optional-props */
    to: {
      propDefinition: [
        mailgun,
        "emails",
      ],
      label: "To",
      description: "Recipient email address(es)",
    },
    /* eslint-enable pipedream/default-value-required-for-optional-props */
    subject: {
      propDefinition: [
        mailgun,
        "subject",
      ],
      description: "Message subject",
    },
    text: {
      propDefinition: [
        mailgun,
        "bodyText",
      ],
      optional: true,
    },
    /* eslint-disable pipedream/default-value-required-for-optional-props */
    html: {
      propDefinition: [
        mailgun,
        "bodyHtml",
      ],
      optional: true,
    },
    /* eslint-enable pipedream/default-value-required-for-optional-props */
    testMode: {
      type: "boolean",
      label: "Send in test mode?",
      default: true,
      description: "Enables sending in test mode. For more information, see the [Mailgun API " +
        "documentation](https://documentation.mailgun.com/en/latest/api-sending.html#sending)",
    },
    dkim: {
      type: "boolean",
      label: "Use DKIM?",
      default: true,
      description: "Enables or disables DKIM signatures. For more information, see the [Mailgun " +
        "API documentation](https://documentation.mailgun.com/en/latest/api-sending.html#sending)",
      optional: true,
    },
    tracking: {
      type: "boolean",
      label: "Use Tracking?",
      default: true,
      description: "Enables or disables tracking. For more information, see the [Mailgun API " +
        "documentation](https://documentation.mailgun.com/en/latest/api-sending.html#sending)",
      optional: true,
    },
    ...common.props,
  },
  async run({ $ }) {
    const msg = {
      "from": `${this.fromName} <${this.from}>`,
      "to": this.to,
      "subject": this.subject,
      "text": this.text,
      "html": this.html,
    };
    if (this.testMode) {
      msg["o:testmode"] = "yes";
    }
    if (this.replyTo) {
      msg["h:Reply-To"] = this.replyTo;
    }
    if (this.dkim !== null) {
      msg["o:dkim"] = this.dkim
        ? "yes"
        : "no";
    }
    if (this.tracking) {
      msg["o:tracking"] = "yes";
    }
    const resp = await this.withErrorHandler(this.mailgun.sendMail, {
      domain: this.domain,
      msg,
    });
    $.export("$summary", "Successfully sent email.");
    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.

LabelPropTypeDescription
MailgunmailgunappThis component uses the Mailgun app.
Domain NamedomainstringSelect a value from the drop down menu.
From NamefromNamestring

Sender name

From Emailfromstring

Sender email address

Reply-ToreplyTostring

Sender reply email address

Totostring[]

Recipient email address(es)

Subjectsubjectstring

Message subject

Message Body (text)textstring
Message Body (HTML)htmlstring
Send in test mode?testModeboolean

Enables sending in test mode. For more information, see the Mailgun API documentation

Use DKIM?dkimboolean

Enables or disables DKIM signatures. For more information, see the Mailgun API documentation

Use Tracking?trackingboolean

Enables or disables tracking. For more information, see the Mailgun API documentation

Halt on error?haltOnErrorboolean

Action Authentication

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

Get your API Key in the Control Panel, specifically in Settings > API Keys. More info in docs.

If your Mailgun account resides in the EU, choose the EU option in the Region field. Otherwise, choose the US (non-EU) region.

About Mailgun

Sending, receiving and tracking email effortlessly

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