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description
Learn how to fetch Reactions data using Airstack Hubs API.

👍 Reactions

Get Reactions By FID and Target Cast

You can get a reaction by its created FID and target cast by using Airstack Hubs API with the code below:

{% tabs %} {% tab title="@farcaster/hub-nodejs" %}

import {
  Metadata,
  getSSLHubRpcClient,
} from "@farcaster/hub-nodejs";

const client = getSSLHubRpcClient("hubs-grpc.airstack.xyz");

client.$.waitForReady(Date.now() + 5000, async (e) => {
  if (e) {
    console.error(`Failed to connect to the gRPC server:`, e);
    process.exit(1);
  } else {
    console.log(`Connected to the gRPC server`);
    const metadata = new Metadata();
    // Provide API key here
    metadata.add("x-airstack-hubs", process.env.AIRSTACK_API_KEY as string);

    // Fetch reaction data with `getReaction`
    const reactionsResult = await client.getReaction({
      fid: 8150,
      reactionType: ReactionType.LIKE,
      castId: {
        fid: 2,
        hash: castHashBytes,
      },
    });
    console.log(reactionsResult.value);
    // After everything, close the RPC connection
    client.close();
  }
});

{% endtab %}

{% tab title="axios" %}

import axios from "axios";
import { config } from "dotenv";

config();

const main = async () => {
  const server = "https://hubs.airstack.xyz";
  try {
    const response = await axios.get(`${server}/v1/reactionById?fid=428529&reaction_type=1&target_fid=439224&target_hash=0xbf35c9dc91bf964c7da3fc1fe2a6925e2db472c5`, {
      headers: {
        "Content-Type": "application/json",
        // Provide API key here
        "x-airstack-hubs": process.env.AIRSTACK_API_KEY as string,
      },
    });
  
    console.log(response);
  
    console.log(json);
  } catch (e) {
    console.error(e);
  }
}

main();

{% endtab %}

{% tab title="Response" %}

{
  "data": {
    "type": "MESSAGE_TYPE_REACTION_ADD",
    "fid": 2,
    "timestamp": 72752656,
    "network": "FARCASTER_NETWORK_MAINNET",
    "reactionBody": {
      "type": "REACTION_TYPE_LIKE",
      "targetCastId": {
        "fid": 1795,
        "hash": "0x7363f449bfb0e7f01c5a1cc0054768ed5146abc0"
      }
    }
  },
  "hash": "0x9fc9c51f6ea3acb84184efa88ba4f02e7d161766",
  "hashScheme": "HASH_SCHEME_BLAKE3",
  "signature": "F2OzKsn6Wj...gtyORbyCQ==",
  "signatureScheme": "SIGNATURE_SCHEME_ED25519",
  "signer": "0x78ff9a7...647b6d62558c"
}

{% endtab %} {% endtabs %}

Get Reactions By FID

You can get all reactions by a specific FID by using Airstack Hubs API with the code below:

{% tabs %} {% tab title="@farcaster/hub-nodejs" %}

import {
  Metadata,
  getSSLHubRpcClient,
} from "@farcaster/hub-nodejs";

const client = getSSLHubRpcClient("hubs-grpc.airstack.xyz");

client.$.waitForReady(Date.now() + 5000, async (e) => {
  if (e) {
    console.error(`Failed to connect to the gRPC server:`, e);
    process.exit(1);
  } else {
    console.log(`Connected to the gRPC server`);
    const metadata = new Metadata();
    // Provide API key here
    metadata.add("x-airstack-hubs", process.env.AIRSTACK_API_KEY as string);

    // Fetch reactions data with `getReactionsByCast`
    const reactionsResult = await client.getReactionsByCast({
      reactionType: ReactionType.LIKE,
      castId: {
        fid: 2,
        hash: castHashBytes,
      },
    });
    console.log(reactionsResult.value);
    // After everything, close the RPC connection
    client.close();
  }
});

{% endtab %}

{% tab title="axios" %}

import axios from "axios";
import { config } from "dotenv";

config();

const main = async () => {
  const server = "https://hubs.airstack.xyz";
  try {
    const response = await axios.get(`${server}/v1/reactionsByFid?fid=2&reaction_type=1`, {
      headers: {
        "Content-Type": "application/json",
        // Provide API key here
        "x-airstack-hubs": process.env.AIRSTACK_API_KEY as string,
      },
    });
  
    console.log(response);
  
    console.log(json);
  } catch (e) {
    console.error(e);
  }
}

main();

{% endtab %}

{% tab title="Response" %}

{
  "messages": [
    {
      "data": {
        "type": "MESSAGE_TYPE_REACTION_ADD",
        "fid": 2,
        "timestamp": 72752656,
        "network": "FARCASTER_NETWORK_MAINNET",
        "reactionBody": {
          "type": "REACTION_TYPE_LIKE",
          "targetCastId": {
            "fid": 1795,
            "hash": "0x7363f449bfb0e7f01c5a1cc0054768ed5146abc0"
          }
        }
      },
      "hash": "0x9fc9c51f6ea3acb84184efa88ba4f02e7d161766",
      "hashScheme": "HASH_SCHEME_BLAKE3",
      "signature": "F2OzKsn6WjP8MTw...hqUbrAvp6mggtyORbyCQ==",
      "signatureScheme": "SIGNATURE_SCHEME_ED25519",
      "signer": "0x78ff9a768...62558c"
    }
  ],
  "nextPageToken": ""
}

{% endtab %} {% endtabs %}

Get Reactions By Cast

You can get all reactions by a specific cast hash by using Airstack Hubs API with the code below:

{% tabs %} {% tab title="@farcaster/hub-nodejs" %}

import {
  Metadata,
  getSSLHubRpcClient,
  ReactionType,
} from "@farcaster/hub-nodejs";

const client = getSSLHubRpcClient("hubs-grpc.airstack.xyz");

client.$.waitForReady(Date.now() + 5000, async (e) => {
  if (e) {
    console.error(`Failed to connect to the gRPC server:`, e);
    process.exit(1);
  } else {
    console.log(`Connected to the gRPC server`);
    const metadata = new Metadata();
    // Provide API key here
    metadata.add("x-airstack-hubs", process.env.AIRSTACK_API_KEY as string);

    // Fetch reaction data with `getReactionsByFid`
    const reactionsResult = await client.getReactionsByFid({ fid: 2, reactionType: ReactionType.LIKE });
    console.log(reactionsResult.value);
    // After everything, close the RPC connection
    client.close();
  }
});

{% endtab %}

{% tab title="axios" %}

import axios from "axios";
import { config } from "dotenv";

config();

const main = async () => {
  const server = "https://hubs.airstack.xyz";
  try {
    const response = await axios.get(`${server}/v1/reactionsByCast?target_fid=439224&reaction_type=1&target_hash=0xbf35c9dc91bf964c7da3fc1fe2a6925e2db472c5`, {
      headers: {
        "Content-Type": "application/json",
        // Provide API key here
        "x-airstack-hubs": process.env.AIRSTACK_API_KEY as string,
      },
    });
  
    console.log(response);
  
    console.log(json);
  } catch (e) {
    console.error(e);
  }
}

main();

{% endtab %}

{% tab title="Response" %}

{
  "messages": [
    {
      "data": {
        "type": "MESSAGE_TYPE_REACTION_ADD",
        "fid": 426,
        "timestamp": 72750141,
        "network": "FARCASTER_NETWORK_MAINNET",
        "reactionBody": {
          "type": "REACTION_TYPE_LIKE",
          "targetCastId": {
            "fid": 1795,
            "hash": "0x7363f449bfb0e7f01c5a1cc0054768ed5146abc0"
          }
        }
      },
      "hash": "0x7662fba1be3166fc75acc0914a7b0e53468d5e7a",
      "hashScheme": "HASH_SCHEME_BLAKE3",
      "signature": "tmAUEYlt/+...R7IO3CA==",
      "signatureScheme": "SIGNATURE_SCHEME_ED25519",
      "signer": "0x13dd2...204e57bc2a"
    }
  ],
  "nextPageToken": ""
}

{% endtab %} {% endtabs %}

Get Reactions By Target Cast URL

You can get all reactions by a specific cast's target URL by using Airstack Hubs API with the code below:

{% tabs %} {% tab title="@farcaster/hub-nodejs" %}

import {
  Metadata,
  getSSLHubRpcClient,
  ReactionType,
} from "@farcaster/hub-nodejs";

const client = getSSLHubRpcClient("hubs-grpc.airstack.xyz");

client.$.waitForReady(Date.now() + 5000, async (e) => {
  if (e) {
    console.error(`Failed to connect to the gRPC server:`, e);
    process.exit(1);
  } else {
    console.log(`Connected to the gRPC server`);
    const metadata = new Metadata();
    // Provide API key here
    metadata.add("x-airstack-hubs", process.env.AIRSTACK_API_KEY as string);

    // Fetch reaction data with `getReactionsByTarget`
    const reactionsRes = await client.getReactionsByTarget(
      {
        targetUrl:
          "chain://eip155:1/erc721:0x39d89b649ffa044383333d297e325d42d31329b2",
        reactionType: ReactionType.LIKE,
      },
      metadata
    );
    console.log(reactionsRes.value);
    // After everything, close the RPC connection
    client.close();
  }
});

{% endtab %}

{% tab title="axios" %}

import axios from "axios";
import { config } from "dotenv";

config();

const main = async () => {
  const server = "https://hubs.airstack.xyz";
  try {
    const response = await axios.get(`${server}/v1/reactionsByTarget?url=chain://eip155:1/erc721:0x39d89b649ffa044383333d297e325d42d31329b2`, {
      headers: {
        "Content-Type": "application/json",
        // Provide API key here
        "x-airstack-hubs": process.env.AIRSTACK_API_KEY as string,
      },
    });
  
    console.log(response);
  
    console.log(json);
  } catch (e) {
    console.error(e);
  }
}

main();

{% endtab %}

{% tab title="Response" %}

{
  "messages": [
    {
      "data": {
        "type": "MESSAGE_TYPE_REACTION_ADD",
        "fid": 1134,
        "timestamp": 79752856,
        "network": "FARCASTER_NETWORK_MAINNET",
        "reactionBody": {
          "type": "REACTION_TYPE_LIKE",
          "targetUrl": "chain://eip155:1/erc721:0x39d89b649ffa044383333d297e325d42d31329b2"
        }
      },
      "hash": "0x94a0309cf11a07b95ace71c62837a8e61f17adfd",
      "hashScheme": "HASH_SCHEME_BLAKE3",
      "signature": "+f/+M...0Uqzd0Ag==",
      "signatureScheme": "SIGNATURE_SCHEME_ED25519",
      "signer": "0xf6...3769198d4c"
    }
  ],
  "nextPageToken": ""
}

{% endtab %} {% endtabs %}

Developer Support

If you have any questions or need help regarding integrating Reactions data using AIrstack Hubs API into your Farcaster app, please join our Airstack's Telegram group.

More Resources