Unfollowing inactive Farcaster users with Neynar SDK

This guide demonstrates how to unfollow Farcasters who hasn't been active in the past 3 months.

Check out this Getting started guide to learn how to set up your environment and get an API key.

First, initialize the client:

// npm i @neynar/nodejs-sdk
import { NeynarAPIClient } from "@neynar/nodejs-sdk";

// make sure to set your NEYNAR_API_KEY .env
// don't have an API key yet? get one at neynar.com
const client = new NeynarAPIClient(process.env.NEYNAR_API_KEY);
const signer = process.env.NEYNAR_SIGNER;

In the fetchFollowing endpoint, there's an activeStatus field that can be used to filter out inactive Farcasters.

const fid = 3;
const users = await client.fetchUserFollowing(fid);
console.log(users);

Will result in this:

{
  "result": {
    "users": [
      {
        "fid": 3461,
        "custodyAddress": "0x094ce1566a83b632e59d50e2aa9618d0f4dcd432",
        "username": "jonahg",
        "displayName": "Jonah Grant",
        "pfp": {
          "url": "https://i.imgur.com/x51eW6a.jpg"
        },
        "profile": {
          "bio": {
            "text": "Software engineer in New York City",
            "mentionedProfiles": []
          }
        },
        "followerCount": 15,
        "followingCount": 0,
        "verifications": [],
        "activeStatus": "inactive",
        "timestamp": "2023-12-09T05:01:59.000Z"
      },
      {
        "fid": 18198,
        "custodyAddress": "0x718aea83c0ee2165377335a0e8ed48f1c5a34d63",
        "username": "alive.eth",
        "displayName": "Ali Yahya",
        "pfp": {
          "url": "https://i.imgur.com/1PASQSb.jpg"
        },
        "profile": {
          "bio": {
            "text": "GP @a16zcrypto. Previously Google Brain, GoogleX, Stanford Computer Science.",
            "mentionedProfiles": []
          }
        },
        "followerCount": 88,
        "followingCount": 76,
        "verifications": [
          "0x990a73079425d2b0ec746e3cc989e903306bb6c7"
        ],
        "activeStatus": "inactive",
        "timestamp": "2023-12-08T16:58:51.000Z"
      },
      {
        "fid": 9528,
        "custodyAddress": "0x80ef8b51dbba18c50b3451acea9deebc7dfcd131",
        "username": "skominers",
        "displayName": "Scott Kominers ",
        "pfp": {
          "url": "https://i.imgur.com/lxEkagM.jpg"
        },
        "profile": {
          "bio": {
            "text": "@a16zcrypto • Harvard/HBS • 🧩 • QED",
            "mentionedProfiles": []
          }
        },
        "followerCount": 289,
        "followingCount": 190,
        "verifications": [
          "0x34202f199ef058302dcced326a0105fe2db53e12"
        ],
        "activeStatus": "active",
        "timestamp": "2023-12-08T16:56:30.000Z"
      }
    ],
    "next": {
      "cursor": "eyJ0aW1lc3RhbXAiOiIyMDIzLTEyLTA4IDE2OjU2OjMwLjAwMDAwMDAiLCJmaWQiOjk1Mjh9"
    }
  }
}

To get fids of inactive Farcasters, we can use the activeStatus field to filter out active Farcasters.

const inactiveFids = users.result.users
  .filter((user) => user.activeStatus === "inactive")
  .map((user) => user.fid);
console.log(inactiveFids); // [ 3461, 18198 ]

And this inactiveFids value can be passed to client.unfollowUser to unfollow inactive Farcasters.

await client.unfollowUser(signer, inactiveFids);

Which will result in this:

{
  "success": true,
  "details": [
    {
      "success": true,
      "target_fid": 3461
    },
    {
      "success": true,
      "target_fid": 18198
    },
  ]
}

That's it! You can now unfollow inactive Farcasters easily with the Neynar SDK.

🚀

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