DynamoDB - Query with AWS API

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Getting Started#

Create a workflow to DynamoDB - Query with the AWS API. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

Configure the DynamoDB - Query action
1. Connect your AWS account
2. Select a AWS Region
3. Select a Table Name
4. Configure Key Condition Expression
5. Optional- Configure Projection Expression
6. Optional- Configure Expression Attribute Names
7. Optional- Configure Expression Attribute Values
Select a trigger to run your workflow on HTTP requests, schedules or app events
Deploy the workflow
Send a test event to validate your setup
Turn on the trigger

Integrations#

DynamoDB - Query with AWS API on New Requests (Payload Only) from HTTP / Webhook API

HTTP / Webhook + AWS

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DynamoDB - Query with AWS API on New Item in Feed from RSS API

RSS + AWS

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DynamoDB - Query with AWS API on New Message from Discord API

Discord + AWS

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DynamoDB - Query with AWS API on New Message In Channels from Slack API

Slack + AWS

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DynamoDB - Query with AWS API on New Message in Channel from Discord Bot API

Discord Bot + AWS

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Details#

This is a pre-built, source-available component from Pipedream's GitHub repo. The component is 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.

DynamoDB - Query on AWS

Description:The query operation finds items based on primary key values. [See docs](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-dynamodb/classes/querycommand.html)

Version:0.5.1

Key:aws-dynamodb-query

View on GitHub

Code#

import common from "../../common/common-dynamodb.mjs";
import {
  toSingleLineString,
  attemptToParseJSON,
} from "../../common/utils.mjs";

export default {
  ...common,
  key: "aws-dynamodb-query",
  name: "DynamoDB - Query",
  description: toSingleLineString(`
    The query operation finds items based on primary key values.
    [See docs](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-dynamodb/classes/querycommand.html)
  `),
  version: "0.5.1",
  type: "action",
  props: {
    aws: common.props.aws,
    region: common.props.region,
    tableName: common.props.tableName,
    keyConditionExpression: common.props.keyConditionExpression,
    projectionExpression: common.props.projectionExpression,
    expressionAttributeNames: common.props.expressionAttributeNames,
    expressionAttributeValues: common.props.expressionAttributeValues,
  },
  async run({ $ }) {
    const params = {
      TableName: this.tableName,
      KeyConditionExpression: this.keyConditionExpression,
      ProjectionExpression: this.projectionExpression,
      ExpressionAttributeNames: attemptToParseJSON(this.expressionAttributeNames),
      ExpressionAttributeValues: attemptToParseJSON(this.expressionAttributeValues),
    };

    const response = await this.aws.pagination(
      this.query,
      params,
      "ExclusiveStartKey",
      "LastEvaluatedKey",
    );

    const s = response.Items.length === 1
      ? ""
      : "s";
    $.export("$summary", `Query returned ${response.Items.length} item${s}`);
    return response;
  },
};

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
AWS	`aws`	`app`	This component uses the AWS app.
AWS Region	`region`	`string`	Select a value from the drop down menu.
Table Name	`tableName`	`string`	Select a value from the drop down menu.
Key Condition Expression	`keyConditionExpression`	`string`	The condition that specifies the key values for items to be retrieved by the Query action. Example: `partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval` See the docs
Projection Expression	`projectionExpression`	`string`	A string that identifies one or more attributes to retrieve from the specified table or index. If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
Expression Attribute Names	`expressionAttributeNames`	`string`	One or more substitution tokens for attribute names in an expression. Example: `{ "#execs": "execs" }` See the docs
Expression Attribute Values	`expressionAttributeValues`	`string`	One or more values that can be substituted in an expression. Use the : (colon) character in an expression to dereference an attribute value. Example: `{ ":echo": { "S": "echo" }, ":oneh": { "N": "100" } }` See the docs

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.

More Ways to Use AWS#

Triggers#

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Creates a Step Function State Machine to publish a message to an SNS topic at a specific timestamp. The SNS topic delivers the message to this Pipedream source, and the source emits it as a new event.

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New SNS Messages from the AWS API

Creates an SNS topic in your AWS account. Messages published to this topic are emitted from the Pipedream source.

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New Inbound SES Emails from the AWS API

The source subscribes to all emails delivered to a specific domain configured in AWS SES. When an email is sent to any address at the domain, this event source emits that email as a formatted event. These events can trigger a Pipedream workflow and can be consumed via SSE or REST API.

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New Deleted S3 File from the AWS API

Emit new event when a file is deleted from a S3 bucket

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New DynamoDB Stream Event from the AWS API

Emit new event when a DynamoDB stream receives new events. See the docs here

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Actions#

CloudWatch Logs - Put Log Event with the AWS API

Uploads a log event to the specified log stream. See docs

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DynamoDB - Create Table with the AWS API

Creates a new table to your account. See docs

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DynamoDB - Execute Statement with the AWS API

This operation allows you to perform transactional reads or writes on data stored in DynamoDB, using PartiQL. See docs

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DynamoDB - Get Item with the AWS API

The Get Item operation returns a set of attributes for the item with the given primary key. If there is no matching item, Get Item does not return any data and there will be no Item element in the response. See docs

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DynamoDB - Put Item with the AWS API

Creates a new item, or replaces an old item with a new item. If an item that has the same primary key as the new item already exists in the specified table, the new item completely replaces the existing item. See docs

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