その日ACした問題一覧をdiscordに通知するaction

workflow.yml

name: discord message
on:
  workflow_dispatch:
  schedule:
    - cron:  '15 21 * * *'
jobs:

  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@master
    - name: get solved problems from atcoder problemss a pi
      continue-on-error: true
      run: |
        user=YOUR_ATCODER_ACCOUNT
        (( a_day_ago_epoch=$(date +%s)-86400 )) || true
        curl --compressed "https://kenkoooo.com/atcoder/atcoder-api/v3/user/submissions?user=${user}&from_second=${a_day_ago_epoch}" > result
        result_num=$(jq '. | length' < result)
        if [ "${result_num}" -eq 0 ]; then
          exit 1
        fi
        jq -r '.[] | select(.result == "AC") | .result = .problem_id + " https://atcoder.jp/contests/" + .contest_id + "/submissions/" + (.id|tostring) + " " + .language | .result' < result > result2
        echo "RESULT<<EOF" >> "$GITHUB_ENV"
        echo "$(cat result2)" >> "$GITHUB_ENV"
        echo "EOF" >> "$GITHUB_ENV"
    - name: send custom message with args
      if: success()
      uses: appleboy/discord-action@master
      with:
        webhook_id: ${{ secrets.WEBHOOK_ID }}
        webhook_token: ${{ secrets.WEBHOOK_TOKEN }}
        args: "${{ env.RESULT }}"

YOUR_ATCODER_USERNAME　を変更してご利用ください。
cron時刻は6:15JSTにしていますが、適切な時間にしてください