Module: LambdaSharp.Twitter.Query

Version: 0.8.0.0

Overview

The LambdaSharp.Twitter.Query module conducts a Twitter search at regular intervals and publishes found tweets to a dedicated SNS topic.

This module requires a Twitter developer account. See the Twitter Developer Documentation for more information.

Resource Types

This module defines no resource types.

Parameters

TwitterApiKey

The TwitterApiKey parameter sets the API key for accessing Twitter.

Required: Yes

Type: Secret

TwitterApiSecretKey

The TwitterApiSecretKey parameter sets the secret API key for accessing Twitter. This parameter must either be encrypted with the default deployment tier KMS key, or the corresponding KMS key must be passed in via the Secrets parameter.

Required: Yes

Type: Secret

TwitterLanguageFilter

The TwitterLanguageFilter parameter is a comma-delimited list of ISO 639-1 language filters for tweets (empty value disables filter). This parameter must either be encrypted with the default deployment tier KMS key, or the corresponding KMS key must be passed in via the Secrets parameter.

Required: No (Default: en)

Type: String

TwitterQuery

The TwitterQuery parameter sets the query expression for finding tweets.

Required: Yes

Type: String

TwitterQueryInterval

The TwitterQueryInterval parameter sets the interval between queries (in minutes).

Required: No (Default: 60)

Type: Number (between 2 and 1,440)

TwitterSentimentFilter

The TwitterSentimentFilter parameter sets the sentiment filter (one of: SKIP, POSITIVE, NEUTRAL, NEGATIVE, MIXED, ALL).

NOTE: Analyzing tweets for sentiment incurs additional costs. Please check pricing for the AWS Comprehend Sentiment Analysis API.

Required: No (Default: SKIP)

Type: String

The TwitterSentimentFilter must have one of the following values:

ALL

Analyze and publish all tweets.

MIXED

Only publish tweets with mixed sentiment.

NEGATIVE

Only publish tweets with negative sentiment.

NEUTRAL

Only publish tweets with neutral sentiment.

POSITIVE

Only publish tweets with positive sentiment.

SKIP

Publish all tweets without analyzing them.

Output Values

TweetTopic

The TweetTopic output contains the ARN of the SNS topic to which tweets that match the TwitterQuery are published to.

Type: AWS::SNS::Topic

Examples

Use LambdaSharp.Twitter.Query to invoke a Lambda function

- Nested: TwitterNotify
  Module: LambdaSharp.Twitter.Query
  Parameters:
    TwitterApiKey: !Ref TwitterApiKey
    TwitterApiSecretKey: !Ref TwitterApiSecretKey
    TwitterQuery: LambdaSharp

- Resource: TwitterNotifyTopic
  Type: AWS::SNS::Topic
  Allow: Subscribe
  Value: !GetAtt TwitterNotify.Outputs.TweetTopic

- Function: NotifyFunction
  Memory: 256
  Timeout: 30
  Sources:
    - Topic: TwitterNotifyTopic