Find Row With Custom Query with PostgreSQL API on New Message In Channel from Slack Bot API

Pipedream makes it easy to connect APIs for PostgreSQL, Slack Bot and 2,400+ other apps remarkably fast.

Trigger workflow on

New Message In Channel from the Slack Bot API

Next, do this

Find Row With Custom Query with the PostgreSQL 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 Slack Bot trigger and PostgreSQL action. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

Select this integration
Configure the New Message In Channel trigger
1. Connect your Slack Bot account
2. Configure Polling schedule
3. Select a Channel ID
Configure the Find Row With Custom Query action
1. Connect your PostgreSQL account
2. Configure SQL Query
3. Optional- Configure Values
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 Message In Channel on Slack Bot

Description:Emit new event when a new message is posted to a public, private or group channel (Bot)

Version:0.0.4

Key:slack_bot-new-message-in-channel

View on GitHub

Slack Bot Overview#

The Slack Bot API allows you to build rich, interactive bots for Slack workspaces. These bots can respond to messages, post updates, and interact with users in various ways. With the Slack Bot API on Pipedream, developers can create automated workflows that trigger on specific events in Slack, such as new messages or reactions, and then perform defined actions, like sending data to other apps or processing the information within Pipedream's serverless platform. This tight integration with Pipedream enables both simple and complex automations, leveraging Pipedream's ability to connect with numerous apps and its powerful built-in code steps.

Trigger Code#

import common from "../common/base.mjs";
import constants from "../../common/constants.mjs";
import utils from "../../common/utils.mjs";

export default {
  ...common,
  key: "slack_bot-new-message-in-channel",
  name: "New Message In Channel",
  version: "0.0.4",
  description: "Emit new event when a new message is posted to a public, private or group channel (Bot)",
  type: "source",
  dedupe: "unique",
  props: {
    ...common.props,
    channelId: {
      propDefinition: [
        common.props.app,
        "channelId",
        () => ({
          types: [
            constants.CHANNEL_TYPE.PUBLIC,
            constants.CHANNEL_TYPE.PRIVATE,
            constants.CHANNEL_TYPE.MPIM,
          ],
        }),
      ],
      description: `Select the channel's ID. ${utils.CONVERSATION_PERMISSION_MESSAGE}`,
    },
  },
  methods: {
    ...common.methods,
    getResourceName() {
      return constants.RESOURCE_NAME.MESSAGES;
    },
    getResourceFn() {
      return this.app.conversationsHistory;
    },
    getResourceFnArgs() {
      return {
        channel: this.channelId,
        limit: constants.LIMIT,
        oldest: this.getLastTimestamp(),
        inclusive: false,
      };
    },
    generateMeta(resource) {
      return {
        id: resource.ts,
        ts: resource.ts,
        summary: `New Message Timestamp ${resource.ts}`,
      };
    },
  },
};

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
Slack Bot	`app`	`app`	This component uses the Slack Bot app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Polling schedule	`timer`	`$.interface.timer`	How often to poll the Slack API
Channel ID	`channelId`	`string`	Select a value from the drop down menu.

Trigger Authentication#

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

In the settings for your Slack app, visit the OAuth & Permissions section on the left. You'll see a token labeled Bot User OAuth Access Token. Copy and paste that below.

See Slack's docs on Bot User Tokens for more info.

About Slack Bot#

Interact with Slack with your own bot user

Action#

Find Row With Custom Query on PostgreSQL

Description:Finds a row in a table via a custom query. [See the documentation](https://node-postgres.com/features/queries)

Version:2.0.6

Key:postgresql-find-row-custom-query

View on GitHub

PostgreSQL Overview#

On Pipedream, you can leverage the PostgreSQL app to create workflows that automate database operations, synchronize data across platforms, and react to database events in real-time. Think handling new row entries, updating records from webhooks, or even compiling reports on a set schedule. Pipedream's serverless platform provides a powerful way to connect PostgreSQL with a variety of apps, enabling you to create tailored automation that fits your specific needs.

Action Code#

import postgresql from "../../postgresql.app.mjs";

export default {
  name: "Find Row With Custom Query",
  key: "postgresql-find-row-custom-query",
  description: "Finds a row in a table via a custom query. [See the documentation](https://node-postgres.com/features/queries)",
  version: "2.0.6",
  type: "action",
  props: {
    postgresql,
    query: {
      propDefinition: [
        postgresql,
        "query",
      ],
    },
    values: {
      propDefinition: [
        postgresql,
        "values",
      ],
    },
  },
  async run({ $ }) {
    const {
      query,
      values = [],
    } = this;

    if (!Array.isArray(values)) {
      throw new Error("No valid values provided. The values property must be an array.");
    }

    if (this.values) {
      const numberOfValues = query?.match(/\$/g)?.length || 0;
      if (values.length !== numberOfValues) {
        throw new Error("The number of values provided does not match the number of values in the query.");
      }
    }

    if (!query.toLowerCase().includes("select")) {
      throw new Error("Need be a `SELECT` statement query. Read more about [SELECT queries here](https://www.w3schools.com/sql/sql_select.asp)");
    }

    try {
      const res = await this.postgresql.executeQuery({
        text: query,
        values,
      });
      $.export("$summary", "Successfully executed query");
      return res;
    } catch (error) {
      let errorMsg = "Query not executed due to an error. ";
      errorMsg += `${error}`.includes("SSL verification failed")
        ? "This could be because SSL verification failed. To resolve this, reconnect your account and set SSL Verification Mode: Skip Verification, and try again."
        : `${error}`;
      throw new Error(errorMsg);
    }
  },
};

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
PostgreSQL	`postgresql`	`app`	This component uses the PostgreSQL app.
SQL Query	`query`	`string`	Your custom SQL Query using `$1`, `$2`... to represent values (eg. `INSERT INTO users(name, email) VALUES($1, $2)`
Values	`values`	`string[]`	List of values represented in your SQL Query above

Action Authentication#

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

Connecting to Restricted Databases

Either enable the shared static IP for this account below, or configure a VPC to deploy any workflow in your workspace to a private network with a dedicated static IP. Learn more in our docs.

SSL Setup

Configure SSL on your PostgreSQL database by providing the CA (Certificate Authority), and choosing between Full Verification, Verify Certificate Authority (CA), or Skip Verification. Skipping verification is not recommended as this has serious security implications.