Generate Alt Text with AltText.ai API on New Table from PostgreSQL API

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Trigger workflow on

New Table from the PostgreSQL API

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Generate Alt Text with the AltText.ai API

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Getting Started#

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

Select this integration
Configure the New Table trigger
1. Connect your PostgreSQL account
2. Configure Polling Interval
3. Select a Schema
Configure the Generate Alt Text action
1. Connect your AltText.ai account
2. Optional- Configure Image Data
3. Optional- Configure Image URL
4. Optional- Configure Image File Path
5. Optional- Configure Keywords
6. Optional- Configure Negative Keywords
7. Optional- Configure Keyword Source
8. Optional- Select a Language
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 Table on PostgreSQL

Description:Emit new event when a new table is added to the database. [See the documentation](https://node-postgres.com/features/queries)

Version:2.0.6

Key:postgresql-new-table

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.

Trigger Code#

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

export default {
  ...common,
  name: "New Table",
  key: "postgresql-new-table",
  description: "Emit new event when a new table is added to the database. [See the documentation](https://node-postgres.com/features/queries)",
  version: "2.0.6",
  type: "source",
  props: {
    ...common.props,
    schema: {
      propDefinition: [
        common.props.postgresql,
        "schema",
      ],
    },
  },
  async run() {
    const previousTables = this._getPreviousValues() || [];

    const tables = await this.postgresql.getTables(this.schema);

    const newTables = tables.filter((table) => !previousTables.includes(table));
    for (const table of newTables) {
      const meta = this.generateMeta(table);
      this.$emit(table, meta);
    }

    this._setPreviousValues(tables);
  },
};

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
PostgreSQL	`postgresql`	`app`	This component uses the PostgreSQL app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Polling Interval	`timer`	`$.interface.timer`	Pipedream will poll the API on this schedule
Schema	`schema`	`string`	Select a value from the drop down menu.

Trigger 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.

About PostgreSQL#

PostgreSQL is a free and open-source relational database management system emphasizing extensibility and SQL compliance.

Action#

Generate Alt Text on AltText.ai

Description:Generates a descriptive alt text for a given image. [See the documentation](https://alttext.ai/apidocs#tag/Images/operation/create-image)

Version:0.0.1

Key:alttext_ai-generate-alt-text

View on GitHub

AltText.ai Overview#

AltText.ai provides an API that leverages artificial intelligence to generate alternative text (alt text) for images, which is crucial for web accessibility and SEO. With AltText.ai, you can automate the process of creating descriptive, keyword-rich, and meaningful alt text for images on websites, blogs, or online stores. In Pipedream, you can create workflows that trigger on various events to send images to the AltText.ai API and receive alt text, which you can then store or apply to your content management system automatically.

Action Code#

import alttextAi from "../../alttext_ai.app.mjs";
import fs from "fs";
import { LANGUAGE_OPTIONS } from "../../commons/constants.mjs";
import { ConfigurationError } from "@pipedream/platform";

export default {
  key: "alttext_ai-generate-alt-text",
  name: "Generate Alt Text",
  description:
    "Generates a descriptive alt text for a given image. [See the documentation](https://alttext.ai/apidocs#tag/Images/operation/create-image)",
  version: "0.0.1",
  type: "action",
  props: {
    alttextAi,
    imageData: {
      type: "string",
      label: "Image Data",
      description:
        "The image data in base64 format. Only one of `Image Data`, `Image File Path` or `Image URL` should be specified.",
      optional: true,
    },
    imageUrl: {
      type: "string",
      label: "Image URL",
      description:
        "The public URL to an image. Only one of `Image URL`, `Image Data` or `Image File Path` should be specified.",
      optional: true,
    },
    imageFilePath: {
      type: "string",
      label: "Image File Path",
      description:
        "The path to an image file in the `/tmp` directory. [See the documentation on working with files](https://pipedream.com/docs/code/nodejs/working-with-files/#the-tmp-directory). Only one of `Image File Path`, `Image URL` or `Image Data` should be specified.",
      optional: true,
    },
    keywords: {
      type: "string[]",
      label: "Keywords",
      description:
        "Keywords / phrases to be considered when generating the alt text. Keywords must be in English, even if requesting alt text in another language. Max 6 items.",
      optional: true,
    },
    negativeKeywords: {
      type: "string[]",
      label: "Negative Keywords",
      description:
        "Negative keywords / phrases to be removed from any generated alt text. Negative keywords must be in English, even if requesting alt text in another language. Max 6 items.",
      optional: true,
    },
    keywordSource: {
      type: "string",
      label: "Keyword Source",
      description:
        "Text to use as the source of keywords for the alt text. Will only be used if `Keywords` is not provided. This text might be a product description, or a paragraph that describes the context of the images, etc. Max 1024 characters.",
      optional: true,
    },
    language: {
      type: "string",
      label: "Language",
      description: "The language for the generated alt text.",
      options: LANGUAGE_OPTIONS,
      default: "en",
      optional: true,
    },
  },
  async run({ $ }) {
    if (
      (!this.imageData && !this.imageFilePath && !this.imageUrl)
      || (this.imageData && this.imageFilePath)
      || (this.imageData && this.imageUrl)
      || (this.imageFilePath && this.imageUrl)
    ) {
      throw new ConfigurationError("Only one of `Image Data`, `Image File Path` or `Image URL` should be specified.");
    }

    const response = await this.alttextAi.generateAltText({
      $,
      data: {
        image: {
          url: this.imageUrl,
          raw:
            this.imageData ??
            (this.imageFilePath &&
              fs.readFileSync(
                this.imageFilePath.includes("tmp/")
                  ? this.imageFilePath
                  : `/tmp/${this.imageFilePath}`,
                {
                  encoding: "base64",
                },
              )),
        },
        keywords: this.keywords,
        negative_keywords: this.negativeKeywords,
        keyword_source: this.keywordSource,
        lang: this.language,
      },
    });

    $.export("$summary", "Generated alt text successfully");
    return response;
  },
};

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
AltText.ai	`alttextAi`	`app`	This component uses the AltText.ai app.
Image Data	`imageData`	`string`	The image data in base64 format. Only one of `Image Data`, `Image File Path` or `Image URL` should be specified.
Image URL	`imageUrl`	`string`	The public URL to an image. Only one of `Image URL`, `Image Data` or `Image File Path` should be specified.
Image File Path	`imageFilePath`	`string`	The path to an image file in the `/tmp` directory. See the documentation on working with files. Only one of `Image File Path`, `Image URL` or `Image Data` should be specified.
Keywords	`keywords`	`string[]`	Keywords / phrases to be considered when generating the alt text. Keywords must be in English, even if requesting alt text in another language. Max 6 items.
Negative Keywords	`negativeKeywords`	`string[]`	Negative keywords / phrases to be removed from any generated alt text. Negative keywords must be in English, even if requesting alt text in another language. Max 6 items.
Keyword Source	`keywordSource`	`string`	Text to use as the source of keywords for the alt text. Will only be used if `Keywords` is not provided. This text might be a product description, or a paragraph that describes the context of the images, etc. Max 1024 characters.
Language	`language`	`string`	Select a value from the drop down menu:`{ "label": "Afrikaans", "value": "af" }{ "label": "Albanian", "value": "sq" }{ "label": "Amharic", "value": "am" }{ "label": "Arabic", "value": "ar" }{ "label": "Armenian", "value": "hy" }{ "label": "Assamese", "value": "as" }{ "label": "Aymara", "value": "ay" }{ "label": "Azerbaijani", "value": "az" }{ "label": "Bambara", "value": "bm" }{ "label": "Basque", "value": "eu" }{ "label": "Belarusian", "value": "be" }{ "label": "Bengali", "value": "bn" }{ "label": "Bhojpuri", "value": "bho" }{ "label": "Bosnian", "value": "bs" }{ "label": "Bulgarian", "value": "bg" }{ "label": "Catalan", "value": "ca" }{ "label": "Cebuano", "value": "ceb" }{ "label": "Chinese (Simplified)", "value": "zh-CN" }{ "label": "Chinese (Traditional)", "value": "zh-TW" }{ "label": "Corsican", "value": "co" }{ "label": "Croatian", "value": "hr" }{ "label": "Czech", "value": "cs" }{ "label": "Danish", "value": "da" }{ "label": "Dhivehi", "value": "dv" }{ "label": "Dogri", "value": "doi" }{ "label": "Dutch", "value": "nl" }{ "label": "English", "value": "en" }{ "label": "Esperanto", "value": "eo" }{ "label": "Estonian", "value": "et" }{ "label": "Ewe", "value": "ee" }{ "label": "Filipino (Tagalog)", "value": "fil" }{ "label": "Finnish", "value": "fi" }{ "label": "French", "value": "fr" }{ "label": "Frisian", "value": "fy" }{ "label": "Galician", "value": "gl" }{ "label": "Georgian", "value": "ka" }{ "label": "German", "value": "de" }{ "label": "Greek", "value": "el" }{ "label": "Guarani", "value": "gn" }{ "label": "Gujarati", "value": "gu" }{ "label": "Haitian Creole", "value": "ht" }{ "label": "Hausa", "value": "ha" }{ "label": "Hawaiian", "value": "haw" }{ "label": "Hebrew", "value": "he" }{ "label": "Hindi", "value": "hi" }{ "label": "Hmong", "value": "hmn" }{ "label": "Hungarian", "value": "hu" }{ "label": "Icelandic", "value": "is" }{ "label": "Igbo", "value": "ig" }{ "label": "Ilocano", "value": "ilo" }{ "label": "Indonesian", "value": "id" }{ "label": "Irish", "value": "ga" }{ "label": "Italian", "value": "it" }{ "label": "Japanese", "value": "ja" }{ "label": "Javanese", "value": "jv" }{ "label": "Kannada", "value": "kn" }{ "label": "Kazakh", "value": "kk" }{ "label": "Khmer", "value": "km" }{ "label": "Kinyarwanda", "value": "rw" }{ "label": "Konkani", "value": "gom" }{ "label": "Korean", "value": "ko" }{ "label": "Krio", "value": "kri" }{ "label": "Kurdish", "value": "ku" }{ "label": "Kurdish (Sorani)", "value": "ckb" }{ "label": "Kyrgyz", "value": "ky" }{ "label": "Lao", "value": "lo" }{ "label": "Latin", "value": "la" }{ "label": "Latvian", "value": "lv" }{ "label": "Lingala", "value": "ln" }{ "label": "Lithuanian", "value": "lt" }{ "label": "Luganda", "value": "lg" }{ "label": "Luxembourgish", "value": "lb" }{ "label": "Macedonian", "value": "mk" }{ "label": "Maithili", "value": "mai" }{ "label": "Malagasy", "value": "mg" }{ "label": "Malay", "value": "ms" }{ "label": "Malayalam", "value": "ml" }{ "label": "Maltese", "value": "mt" }{ "label": "Maori", "value": "mi" }{ "label": "Marathi", "value": "mr" }{ "label": "Meiteilon (Manipuri)", "value": "mni-Mtei" }{ "label": "Mizo", "value": "lus" }{ "label": "Mongolian", "value": "mn" }{ "label": "Myanmar (Burmese)", "value": "my" }{ "label": "Nepali", "value": "ne" }{ "label": "Norwegian", "value": "no" }{ "label": "Nyanja (Chichewa)", "value": "ny" }{ "label": "Odia (Oriya)", "value": "or" }{ "label": "Oromo", "value": "om" }{ "label": "Pashto", "value": "ps" }{ "label": "Persian", "value": "fa" }{ "label": "Polish", "value": "pl" }{ "label": "Portuguese", "value": "pt" }{ "label": "Punjabi", "value": "pa" }{ "label": "Quechua", "value": "qu" }{ "label": "Romanian", "value": "ro" }{ "label": "Russian", "value": "ru" }{ "label": "Samoan", "value": "sm" }{ "label": "Sanskrit", "value": "sa" }{ "label": "ScotsGaelic", "value": "gd" }{ "label": "Sepedi", "value": "nso" }{ "label": "Serbian", "value": "sr" }{ "label": "Sesotho", "value": "st" }{ "label": "Shona", "value": "sn" }{ "label": "Sindhi", "value": "sd" }{ "label": "Sinhala (Sinhalese)", "value": "si" }{ "label": "Slovak", "value": "sk" }{ "label": "Slovenian", "value": "sl" }{ "label": "Somali", "value": "so" }{ "label": "Spanish", "value": "es" }{ "label": "Sundanese", "value": "su" }{ "label": "Swahili", "value": "sw" }{ "label": "Swedish", "value": "sv" }{ "label": "Tagalog (Filipino)", "value": "tl" }{ "label": "Tajik", "value": "tg" }{ "label": "Tamil", "value": "ta" }{ "label": "Tatar", "value": "tt" }{ "label": "Telugu", "value": "te" }{ "label": "Thai", "value": "th" }{ "label": "Tigrinya", "value": "ti" }{ "label": "Tsonga", "value": "ts" }{ "label": "Turkish", "value": "tr" }{ "label": "Turkmen", "value": "tk" }{ "label": "Twi (Akan)", "value": "ak" }{ "label": "Ukrainian", "value": "uk" }{ "label": "Urdu", "value": "ur" }{ "label": "Uyghur", "value": "ug" }{ "label": "Uzbek", "value": "uz" }{ "label": "Vietnamese", "value": "vi" }{ "label": "Welsh", "value": "cy" }{ "label": "Xhosa", "value": "xh" }{ "label": "Yiddish", "value": "yi" }{ "label": "Yoruba", "value": "yo" }{ "label": "Zulu", "value": "zu" }`