DynamoDB - Query with AWS API on New Row Created from Coda API

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New Row Created from the Coda API

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DynamoDB - Query with the AWS API

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Getting Started#

This integration creates a workflow with a Coda 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 Row Created trigger
1. Connect your Coda account
2. Configure timer
3. Select a Doc ID
4. Select a Table ID
5. Optional- Configure Include Updated Rows
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
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 Row Created on Coda

Description:Emit new event for every created / updated row in a table. [See the documentation.](https://coda.io/developers/apis/v1#tag/Rows/operation/listRows)

Version:0.0.4

Key:coda-row-created

View on GitHub

Coda Overview#

The Coda API enables you to interact with your Coda docs for both data retrieval and manipulation. By leveraging this API on Pipedream, you can automate document updates, synchronize data across different platforms, orchestrate complex workflows, and react to changes in real-time. Coda’s tables can act as dynamic databases that interconnect with various services, allowing you to streamline operations that depend on the timely and accurate exchange of information.

Trigger Code#

import { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } from "@pipedream/platform";
import coda from "../../coda.app.mjs";

export default {
  key: "coda-row-created",
  name: "New Row Created",
  description: "Emit new event for every created / updated row in a table. [See the documentation.](https://coda.io/developers/apis/v1#tag/Rows/operation/listRows)",
  type: "source",
  version: "0.0.4",
  dedupe: "unique",
  props: {
    coda,
    db: "$.service.db",
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
      },
    },
    docId: {
      propDefinition: [
        coda,
        "docId",
      ],
    },
    tableId: {
      propDefinition: [
        coda,
        "tableId",
        (c) => ({
          docId: c.docId,
        }),
      ],
    },
    includeUpdates: {
      type: "boolean",
      label: "Include Updated Rows",
      description: "Emit events for updates on existing rows?",
      optional: true,
    },
  },
  hooks: {
    async deploy() {
      const rows = await this.fetchRows(25);
      this.emitEvents(rows.reverse());
    },
  },
  methods: {
    _getLastTs() {
      return this.db.get("lastTs") || 0;
    },
    _setLastTs(lastTs) {
      this.db.set("lastTs", lastTs);
    },
    getTsKey() {
      return this.includeUpdates
        ? "updatedAt"
        : "createdAt";
    },
    async fetchRows(maxResults) {
      const rows = [];
      const tsKey = this.getTsKey();
      const lastTs = this._getLastTs();
      let maxTs = lastTs;
      let done = false;

      const params = {
        sortBy: tsKey,
      };

      while (true) {
        const {
          items = [],
          nextPageToken,
        } = await this.coda.findRow(
          null,
          this.docId,
          this.tableId,
          params,
        );
        for (const item of items) {
          const ts = Date.parse(item[tsKey]);
          if (ts > lastTs) {
            rows.push(item);
            if (ts > maxTs) {
              maxTs = ts;
            }
            if (rows.length >= maxResults) {
              done = true;
              break;
            }
          }
          else {
            done = true;
          }
        }
        params.pageToken = nextPageToken;

        if (!nextPageToken || done) {
          this._setLastTs(maxTs);
          return rows;
        }
      }
    },
    rowSummary(row) {
      const name = row.name && ` - ${row.name}` || "";
      return `Row index: ${row.index}` + name;
    },
    emitEvents(events) {
      for (const row of events) {
        const id = this.includeUpdates
          ? `${row.id}-${row.updatedAt}`
          : row.id;

        this.$emit(row, {
          id,
          summary: this.rowSummary(row),
          ts: row.updatedAt,
        });
      }
    },
  },
  async run() {
    const rows = await this.fetchRows();
    this.emitEvents(rows.reverse());
  },
};

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
Coda	`coda`	`app`	This component uses the Coda app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
	`timer`	`$.interface.timer`
Doc ID	`docId`	`string`	Select a value from the drop down menu.
Table ID	`tableId`	`string`	Select a value from the drop down menu.
Include Updated Rows	`includeUpdates`	`boolean`	Emit events for updates on existing rows?

Trigger Authentication#

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

About Coda#

Coda is familiar like a doc and engaging like an app, so your team can jump in quickly, collaborate effectively, and make decisions that stick.

Action#

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

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-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;
  },
};

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.
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

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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Pipedream makes it easy to connect APIs for AWS, Coda 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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