Feed from Farcaster channel
Show casts from a Farcaster channel with Neynar
Channels are "subreddits inside Farcaster." Technically, a channel is a collection of casts that share a common channel_id. For example, the memes channel is a collection of casts that share the channel_id memes
.
This guide demonstrates how to use the Neynar SDK to fetch casts from a channel.
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, FeedType, FilterType } 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);
Then, fetch the feed in the memes channel.
const channelId = "memes";
const feed = await client.fetchFeed(FeedType.Filter, {
filterType: FilterType.ChannelId,
channelId,
});
console.log(feed);
Example output:
{
casts: [
{
object: "cast_hydrated",
hash: "0xf17168571d5e403f3b608ea2cc09a0b711d4c4fc",
thread_hash: "0xf17168571d5e403f3b608ea2cc09a0b711d4c4fc",
parent_hash: null,
parent_url: "chain://eip155:1/erc721:0xfd8427165df67df6d7fd689ae67c8ebf56d9ca61",
parent_author: [Object ...],
author: [Object ...],
text: "",
timestamp: "2023-11-27T14:40:12.000Z",
embeds: [
[Object ...]
],
reactions: [Object ...],
replies: [Object ...],
mentioned_profiles: []
}, {
object: "cast_hydrated",
hash: "0x344dcd9c7c2671450628aacd0bbb8e29ea2e8809",
thread_hash: "0x344dcd9c7c2671450628aacd0bbb8e29ea2e8809",
parent_hash: null,
parent_url: "chain://eip155:1/erc721:0xfd8427165df67df6d7fd689ae67c8ebf56d9ca61",
parent_author: [Object ...],
author: [Object ...],
text: "sorry",
timestamp: "2023-11-27T14:24:32.000Z",
embeds: [
[Object ...]
],
reactions: [Object ...],
replies: [Object ...],
mentioned_profiles: []
}, {
object: "cast_hydrated",
hash: "0x68b94ec2a10ebad8b13e3b673f0db02dd3280f42",
thread_hash: "0x68b94ec2a10ebad8b13e3b673f0db02dd3280f42",
parent_hash: null,
parent_url: "chain://eip155:1/erc721:0xfd8427165df67df6d7fd689ae67c8ebf56d9ca61",
parent_author: [Object ...],
author: [Object ...],
text: "man today is such a nice morning",
timestamp: "2023-11-27T13:30:11.000Z",
embeds: [
[Object ...]
],
reactions: [Object ...],
replies: [Object ...],
mentioned_profiles: []
}
],
next: {
cursor: "eyJ0aW1lc3RhbXAiOiIyMDIzLTExLTI3IDEzOjMwOjExLjAwMDAwMDAifQ=="
}
}
To fetch the next page of the feed, use the cursor:
const nextFeed = await client.fetchFeed(FeedType.Filter, {
filterType: FilterType.ChannelId,
channelId,
cursor: feed.next.cursor,
});
There you go! You now know how to fetch casts from a Farcaster channel with Neynar SDK.
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Updated about 1 month ago