extragraph

quick lua-scriptable feedgen

takes you from

return {
  filter = function(ctx)
    local hasSubstring = string.find(string.lower(ctx.post.text), "geans") ~= nil
    return hasSubstring
  end,
}

to

based on very good work by jaz: https://github.com/ericvolp12/go-bsky-feed-generator

how

how build

• get go

make build

or

docker build -t extragraph:0.0.1 .

how run

export PORT=9032
export SCRIPTABLE_FOLLOWING_FEED_ENABLE=1

# create an account on bluesky. set its did plc here
export SCRIPTABLE_FOLLOWING_FEED_ACTOR_DID=did:plc:AAA

# this is just base name. you will have scriptable_1, scriptable_2, scriptable_3, etc...
export SCRIPTABLE_FOLLOWING_FEED_NAME=scriptable

# server address
export SERVICE_ENDPOINT=https://feedgen.bsky.ln4.net

# using the main bluesky llc appview and relay:
export RELAY_WEBSOCKET_ADDRESS=wss://bsky.network
export APPVIEW_URL=https://public.api.bsky.app

make build
./feedgen

how use

first you need to publish this feed somewhere. i use the scripts from https://github.com/bluesky-social/feed-generator/tree/main/scripts. if i remember its something like this

git clone https://github.com/bluesky-social/feed-generator
cd feed-generator
npm i
npm publishFeed

after publishing, you'll have to go to pdsls.dev and fix the record. the feedgen itself lives as a did:web, not did:plc.

example: https://pdsls.dev/at/did:plc:cxnj3lvzbel4zbzf3i3fmnjn/app.bsky.feed.generator/scriptable_1

go to the one made for yours, login to pdsls.dev (works with 3rd-party pds) and edit it to did:web:feedgen.bsky.ln4.net

the feed should then be available and working on bluesky frontend, by default nothing is done about posts coming from firehose. to do something about that, write your filter script

local debug = 0
return {
  filter = function(ctx)
    local hasSubstring = string.find(string.lower(ctx.post.text), "amogus") ~= nil
    return hasSubstring
  end,
}

save it somewhere in the server, then run

./feedgen-admin adduser did:plc:your_did_plc
./feedgen-admin setscript did:plc:your_did_plc 1 ./yourscript.lua

there is no backfill. script changes happen in real time, but they don't backfill either.

have fun!