Prepare Smart Contract Transaction with Overledger API on New Message in Channel from Discord Bot API

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New Message in Channel from the Discord Bot API

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Prepare Smart Contract Transaction with the Overledger API

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Getting Started#

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

Select this integration
Configure the New Message in Channel trigger
1. Connect your Discord Bot account
2. Select a Guild
3. Select one or more Channels
4. Optional- Configure Emit messages as a single event
5. Configure timer
Configure the Prepare Smart Contract Transaction action
1. Connect your Overledger account
2. Select a Overledger Instance
3. Select a Location Technology
4. Configure Signing Account ID
5. Configure Smart Contract ID
6. Configure Function Name
7. Optional- Configure Input Parameters
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 Message in Channel on Discord Bot

Description:Emit new event for each message posted to one or more channels

Version:0.0.18

Key:discord_bot-new-message-in-channel

View on GitHub

Discord Bot Overview#

The Discord Bot API unlocks the power to interact with Discord users and channels programmatically, making it possible to automate messages, manage servers, and integrate with other services. With Pipedream's serverless platform, you can create complex workflows that respond to events in Discord, process data, and trigger actions in other apps. This opens up opportunities for community engagement, content moderation, analytics, and more, without the overhead of managing infrastructure.

Trigger Code#

import { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } from "@pipedream/platform";
import maxBy from "lodash.maxby";
import common from "../common.mjs";
import sampleEmit from "./test-event.mjs";

const { discord } = common.props;

export default {
  ...common,
  key: "discord_bot-new-message-in-channel",
  name: "New Message in Channel",
  description: "Emit new event for each message posted to one or more channels",
  type: "source",
  version: "0.0.18",

  dedupe: "unique", // Dedupe events based on the Discord message ID
  props: {
    ...common.props,
    db: "$.service.db",
    channels: {
      type: "string[]",
      label: "Channels",
      description: "The channels you'd like to watch for new messages",
      propDefinition: [
        discord,
        "channelId",
        ({ guildId }) => ({
          guildId,
        }),
      ],
    },
    emitEventsInBatch: {
      type: "boolean",
      label: "Emit messages as a single event",
      description:
        "If `true`, all messages are emitted as an array, within a single Pipedream event. Defaults to `false`, emitting each Discord message as its own event in Pipedream",
      optional: true,
      default: false,
    },
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
      },
    },
  },
  async run({ $ }) {
    // We store a cursor to the last message ID
    let lastMessageIDs = this._getLastMessageIDs();

    // If this is our first time running this source,
    // get the last N messages, emit them, and checkpoint
    for (const channelId of this.channels) {
      let lastMessageID;
      let messages = [];

      if (!lastMessageID) {
        messages = await this.discord.getMessages({
          $,
          channelId,
          params: {
            limit: 100,
          },
        });

        lastMessageID = messages.length
          ? maxBy(messages, (message) => message.id).id
          : 1;

      } else {
        let newMessages = [];

        do {
          newMessages = await this.discord.getMessages({
            $,
            channelId,
            params: {
              after: lastMessageIDs[channelId],
            },
          });

          messages = messages.concat(newMessages);

          lastMessageID = newMessages.length
            ? maxBy(newMessages, (message) => message.id).id
            : lastMessageIDs[channelId];

        } while (newMessages.length);
      }

      // Set the new high water mark for the last message ID
      // for this channel
      lastMessageIDs[channelId] = lastMessageID;

      if (!messages.length) {
        console.log(`No new messages in channel ${channelId}`);
        return;
      }

      console.log(`${messages.length} new messages in channel ${channelId}`);

      // Batched emits do not take advantage of the built-in deduper
      if (this.emitEventsInBatch) {
        const suffixChar =
          messages.length > 1
            ? "s"
            : "";

        this.$emit(messages, {
          summary: `${messages.length} new message${suffixChar}`,
          id: lastMessageID,
        });

      } else {
        messages.forEach((message) => {
          this.$emit(message, {
            summary: message.content,
            id: message.id, // dedupes events based on this ID
          });
        });
      }
    }

    // Set the last message ID for the next run
    this._setLastMessageIDs(lastMessageIDs);
  },
  sampleEmit,
};

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
Discord Bot	`discord`	`app`	This component uses the Discord Bot app.
Guild	`guildId`	`string`	Select a value from the drop down menu.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Channels	`channels`	`string[]`	Select a value from the drop down menu.
Emit messages as a single event	`emitEventsInBatch`	`boolean`	If `true`, all messages are emitted as an array, within a single Pipedream event. Defaults to `false`, emitting each Discord message as its own event in Pipedream
	`timer`	`$.interface.timer`

Trigger Authentication#

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

This app allows you to use the Discord API using your own Discord bot. If you don't want to use a custom bot, and you just need to use the Discord API, exit this screen and use the Discord app, instead.

If you want to use your own Discord bot, but haven't created one yet, see these instructions or watch this video. You'll need to add this bot to your server(s) to make successful API requests.

Once you've created your bot, you'll find the Bot token within the Bot section of your app. Enter that token below.

About Discord Bot#

Use this app to interact with the Discord API using a bot in your account

Action#

Prepare Smart Contract Transaction on Overledger

Description:Prepares a smart contract transaction for signing on the Overledger platform. [See the documentation](https://developers.quant.network/reference/preparesmartcontractwrite)

Version:0.0.3

Key:overledger-prepare-smart-contract-transaction

View on GitHub

Overledger Overview#

The Overledger API by Quant Network allows developers to interact with multiple blockchain networks. It facilitates the creation, reading, and execution of smart contracts and transactions across different blockchains. This API simplifies the complex nature of blockchain interoperability, enabling multi-chain applications (MApps) through a single gateway.

Action Code#

import {
  NETWORK_OPTIONS, TECHNOLOGY_OPTIONS,
} from "../../common/constants.mjs";
import { parseObject } from "../../common/utils.mjs";
import overledger from "../../overledger.app.mjs";

export default {
  key: "overledger-prepare-smart-contract-transaction",
  name: "Prepare Smart Contract Transaction",
  description: "Prepares a smart contract transaction for signing on the Overledger platform. [See the documentation](https://developers.quant.network/reference/preparesmartcontractwrite)",
  version: "0.0.3",
  type: "action",
  props: {
    overledger,
    environment: {
      propDefinition: [
        overledger,
        "environment",
      ],
    },
    locationTechnology: {
      type: "string",
      label: "Location Technology",
      description: "The technology of the blockchain that the transaction will be submitted to",
      options: TECHNOLOGY_OPTIONS,
      reloadProps: true,
    },
    signingAccountId: {
      type: "string",
      label: "Signing Account ID",
      description: "The blockchain account ID/address that will be sending this transaction",
    },
    smartContractId: {
      type: "string",
      label: "Smart Contract ID",
      description: "The ID/address of the smart contract to interact with.",

    },
    functionName: {
      type: "string",
      label: "Function Name",
      description: "The name of the function to call on the smart contract.",
    },
    inputParameters: {
      type: "string[]",
      label: "Input Parameters",
      description: "The input parameters for the smart contract function, in JSON format.",
      optional: true,
    },
  },
  async additionalProps() {
    const props = {};
    if (this.locationTechnology) {
      props.locationNetwork = {
        type: "string",
        label: "Location Network",
        description: "The blockchain network the transaction will be submitted to.",
        options: NETWORK_OPTIONS[this.locationTechnology],
      };
    }
    return props;
  },
  async run({ $ }) {
    const requestBody = {
      location: {
        technology: this.locationTechnology,
        network: this.locationNetwork,
      },
      signingAccountId: this.signingAccountId,
      functionName: this.functionName,
      smartContractId: this.smartContractId,
      inputParameters: parseObject(this.inputParameters), //parse these values using the parseObject function at this shouls turn the JSON string into JSON objects to used in the request body.
    };

    const response = await this.overledger.prepareSmartContractTransaction({
      $,
      environment: this.environment,
      data: requestBody,
    });
    $.export("$summary", "Smart contract transaction prepared 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
Overledger	`overledger`	`app`	This component uses the Overledger app.
Overledger Instance	`environment`	`string`	Select a value from the drop down menu:`{ "label": "Sandbox", "value": "sandbox" }{ "label": "Overledger", "value": "overledger" }`
Location Technology	`locationTechnology`	`string`	Select a value from the drop down menu:`{ "label": "Ethereum", "value": "ethereum" }{ "label": "Substrate", "value": "substrate" }{ "label": "XRP Ledger", "value": "xrp ledger" }{ "label": "Bitcoin", "value": "bitcoin" }{ "label": "Hyperledger Fabric", "value": "hyperledger fabric" }`
Signing Account ID	`signingAccountId`	`string`	The blockchain account ID/address that will be sending this transaction
Smart Contract ID	`smartContractId`	`string`	The ID/address of the smart contract to interact with.
Function Name	`functionName`	`string`	The name of the function to call on the smart contract.
Input Parameters	`inputParameters`	`string[]`	The input parameters for the smart contract function, in JSON format.

Action Authentication#

Overledger uses OAuth authentication. When you connect your Overledger account, Pipedream will open a popup window where you can sign into Overledger and grant Pipedream permission to connect to your account. Pipedream securely stores and automatically refreshes the OAuth tokens so you can easily authenticate any Overledger API.

Pipedream requests the following authorization scopes when you connect your account:

overledger/read.scope

About Overledger#

Overledger Platform. The enterprise standard for building on blockchain.

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Pipedream makes it easy to connect APIs for Overledger, Discord Bot and 2,500+ other apps remarkably fast.

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

Developers ♥ Pipedream

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