CloudWatch Logs - Put Log Event with AWS API on New Stories by Keyword from Hacker News API

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New Stories by Keyword from the Hacker News API

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CloudWatch Logs - Put Log Event with the AWS API

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Getting Started#

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

Select this integration
Configure the New Stories by Keyword trigger
1. Connect your Hacker News account
2. Configure timer
3. Optional- Configure Keyword
Configure the CloudWatch Logs - Put Log Event action
1. Connect your AWS account
2. Select a AWS Region
3. Select a CloudWatch Log Groups
4. Select a CloudWatch Log Streams
5. Configure Message
6. Configure Timestamp
7. Optional- Configure Sequence token
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 Stories by Keyword on Hacker News

Description:Emit new stories that mention a specific keyword

Version:0.0.4

Key:hacker_news-new-stories-by-keyword

View on GitHub

Hacker News Overview#

The Hacker News API on Pipedream allows you to tap into the vibrant pool of stories, comments, and user data from one of tech's favorite forums. By leveraging this API, you can automate the process of extracting data for analysis, tracking mentions of specific topics, or even monitoring the performance of your own submissions. The real power lies in integrating this wealth of information with other services to create custom, automated workflows that save time and keep you informed.

Trigger Code#

const Parser = require("rss-parser");
const hacker_news = require("../../hacker_news.app.js");
const { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } = require("@pipedream/platform");

const parser = new Parser();

module.exports = {
  key: "hacker_news-new-stories-by-keyword",
  name: "New Stories by Keyword",
  description: "Emit new stories that mention a specific keyword",
  version: "0.0.4",
  type: "source",
  props: {
    hacker_news,
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
      },
    },
    db: "$.service.db",
    // If you want a single search feed but multiple keywords, separate the keywords with " OR ":
    keyword: {
      type: "string",
      label: "Keyword",
      description: "Keyword to watch. Matches story titles. Leave blank to get all stories.",
      optional: true,
      default: "",
    },
  },
  methods: {
    // in theory if alternate setting title and description or aren't unique this won't work
    itemKey(item) {
      return item.guid || item.id || item.title || item.description;
    },
  },
  async run() {
    const seenKeys = this.db.get("seenKeys") || [];
    const seenKeysMap = seenKeys.reduce((acc, v) => {
      acc[v] = true;
      return acc;
    }, {});
    // All elements of an item are optional,
    // however at least one of title or description must be present.
    // should be listed from most recent to least recent
    const feed = await parser.parseURL(`https://hnrss.org/newest?q=${encodeURIComponent(this.keyword)}`);
    for (let idx = feed.items.length - 1; idx >= 0; idx--) {
      const item = feed.items[idx];
      const key = this.itemKey(item);
      // XXX throw if !key?
      if (seenKeysMap[key]) continue;
      seenKeys.unshift(key);
      seenKeysMap[key] = true; // just in case of dupes
      this.$emit(item, {
        id: this.itemKey(item),
        summary: item.title,
        ts: item.pubdate && +new Date(item.pubdate),
      });
    }
    if (seenKeys.length) {
      // XXX restrict by byte size instead of el size
      this.db.set("seenKeys", seenKeys.slice(0, 1000));
    }
  },
};

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
Hacker News	`hacker_news`	`app`	This component uses the Hacker News app.
	`timer`	`$.interface.timer`
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Keyword	`keyword`	`string`	Keyword to watch. Matches story titles. Leave blank to get all stories.

Trigger Authentication#

The Hacker News API does not require authentication.

About Hacker News#

Social news website

Action#

CloudWatch Logs - Put Log Event on AWS

Description:Uploads a log event to the specified log stream. [See docs](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-cloudwatch-logs/classes/putlogeventscommand.html)

Version:0.1.1

Key:aws-cloudwatch-logs-put-log-event

View on GitHub

AWS Overview#

The AWS API unlocks endless possibilities for automation with Pipedream. With this powerful combo, you can manage your AWS services and resources, automate deployment workflows, process data, and react to events across your AWS infrastructure. Pipedream offers a serverless platform for creating workflows triggered by various events that can execute AWS SDK functions, making it an efficient tool to integrate, automate, and orchestrate tasks across AWS services and other apps.

Action Code#

import common from "../../common/common-cloudwatch-logs.mjs";
import { toSingleLineString } from "../../common/utils.mjs";

export default {
  ...common,
  key: "aws-cloudwatch-logs-put-log-event",
  name: "CloudWatch Logs - Put Log Event",
  description: toSingleLineString(`
    Uploads a log event to the specified log stream.
    [See docs](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-cloudwatch-logs/classes/putlogeventscommand.html)
  `),
  version: "0.1.1",
  type: "action",
  props: {
    aws: common.props.aws,
    region: common.props.region,
    logGroupName: common.props.logGroupName,
    logStreamName: common.props.logStreamName,
    message: {
      type: "string",
      label: "Message",
      description: "The event message",
    },
    timestamp: {
      type: "integer",
      label: "Timestamp",
      description: "The Unix timestamp for when the event occurred, in milliseconds",
    },
    sequenceToken: {
      type: "string",
      label: "Sequence token",
      description: toSingleLineString(`
        The sequence token obtained from the response of the previous \`PutLogEvents\` call.
        An upload in a newly created log stream does not need a sequence token.
        **You can also get the sequence token using \`DescribeLogStreams\`**.
        If you call \`PutLogEvents\` twice within a narrow time period using the same value for sequenceToken,
        both calls might be successful or one might be rejected.
      `),
      optional: true,
    },
  },
  async run({ $ }) {
    const params = {
      logGroupName: this.logGroupName,
      logStreamName: this.logStreamName,
      logEvents: [
        {
          message: this.message,
          timestamp: this.timestamp,
        },
      ],
    };
    if (this.sequenceToken) {
      params.sequenceToken = this.sequenceToken;
    }
    const response = await this.putLogEvents(params);
    if (response.rejectedLogEventsInfo) {
      $.export("$summary", "Log event was rejected");
    } else {
      $.export("$summary", "Successfully stored log");
    }
    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
AWS	`aws`	`app`	This component uses the AWS app.
AWS Region	`region`	`string`	Select a value from the drop down menu.
CloudWatch Log Groups	`logGroupName`	`string`	Select a value from the drop down menu.
CloudWatch Log Streams	`logStreamName`	`string`	Select a value from the drop down menu.
Message	`message`	`string`	The event message
Timestamp	`timestamp`	`integer`	The Unix timestamp for when the event occurred, in milliseconds
Sequence token	`sequenceToken`	`string`	The sequence token obtained from the response of the previous `PutLogEvents` call. An upload in a newly created log stream does not need a sequence token. You can also get the sequence token using `DescribeLogStreams`. If you call `PutLogEvents` twice within a narrow time period using the same value for sequenceToken, both calls might be successful or one might be rejected.

Action Authentication#

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

Follow the AWS Instructions for creating an IAM user with an associated access and secret key.

As a best practice, attach the minimum set of IAM permissions necessary to perform the specific task in Pipedream. If your workflow only needs to perform a single API call, you should create a user and associate an IAM group / policy with permission to do only that task. You can create as many linked AWS accounts in Pipedream as you'd like.

Enter your access and secret key below.

About AWS#

Amazon Web Services (AWS) offers reliable, scalable, and inexpensive cloud computing services.

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CloudWatch Logs - Put Log Event with AWS API on New Stories by Keyword from Hacker News API

Pipedream makes it easy to connect APIs for AWS, Hacker News and 2,400+ other apps remarkably fast.

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

Developers ♥ Pipedream

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