Document: WR-006                                                 P. Webb
                                                              2024.11.12

                      Export your Farcaster posts

Body

   I recently decided to quit Farcaster for several reasons. You can
   read about them in the `elon-mind-virus.txt` post. Anyhoo, here's the
   Deno script I made, adapted from Neynar's Node.js archiver script[1]:

   ```ts
   /*** IMPORT ------------------------------------------- ***/

   import { appendFile } from "node:fs";
   import { NeynarAPIClient } from "npm:@neynar/nodejs-sdk";

   /*** UTILITY ------------------------------------------ ***/

   const client = new NeynarAPIClient("YOUR_NEYNAR_API_KEY");
   const fid = 16152; /// your Farcaster FID

   const dumpCast = (cast) => {
     const data = `${JSON.stringify(cast)}\n`;

     appendFile(`${fid}_export.ndjson`, data, (err) => {
       if (err)
         throw err;

       console.log(`${cast.hash} processed`);
     });
   };

   const fetchAndDump = async(fid, cursor) => {
     const data = await client.fetchAllCastsCreatedByUser(fid, {
       cursor,
       limit: 150
     });

     data.result.casts.map(dumpCast);

     if (data.result.next.cursor === null)
       return; /// if no cursor, fin

     await fetchAndDump(fid, data.result.next.cursor);
   };

   /*** PROGRAM ------------------------------------------ ***/

   fetchAndDump(fid);

   /*** deno run --allow-env --allow-net --allow-write export_farcaster.ts ***/
   ```

   This will only export your public posts, not your DMs. If you don't
   want to pay Neynar[2], you can use these[3] projects[4].

References

   [1] <https://github.com/neynarxyz/farcaster-examples/blob/6922ac07fe7b601e3b1712a7f9c54a396dad66f8/archiver-script/index.js>
   [2] <https://neynar.com>
   [3] <https://github.com/iammatthias/fcau>
   [4] <https://github.com/vrypan/fario>