upload file to slack action

jobs:
  post:
    runs-on: ubuntu-latest
    steps:
      - uses: MeilCli/slack-upload-file@v4
        with:
          slack_token: ${{ secrets.SLACK_TOKEN }}
          channel_id: ${{ secrets.SLACK_CHANNEL_ID }}
          file_path: 'docs/*.txt'
          initial_comment: 'post by slack-upload-file'
          # thread_ts: 'option'

jobs:
  post:
    runs-on: ubuntu-latest
    steps:
      - uses: MeilCli/slack-upload-file@v4
        with:
          slack_token: ${{ secrets.SLACK_TOKEN }}
          channel_id: ${{ secrets.SLACK_CHANNEL_ID }}
          content: 'file content'
          file_type: 'text'
          file_name: 'text.txt'
          title: 'title of file'
          initial_comment: 'post by slack-upload-file'
          # thread_ts: 'option'

• This action execute simply files.upload, and can upload multiple files by glob pattern
• How get slack token? see Basic app setup
• How choose Oauth Scope? This action require files:read and files:write. In simply case, you do choose files:read and files:write Bot Token Scope.
• Why use files:read Oauth scope? Because this action use files.uploadv2, and its api requires files:read.
  • ref: slackapi/node-slack-sdk#1544
• You can also pin to a specific release version in the format @v4.x.x

• slack_token
  • required
  • Slack token, must has files:write permission
• slack_api_url
  • Custom slack api url
• channel_id
  • Slack channel id
• content
  • File contents via a POST variable. If omitting this parameter, you must provide a file.
• file_path
  • File contents via multipart/form-data. If omitting this parameter, you must submit content.
  • You can use glob pattern
• file_path_follow_symbolic_links
  • Indicates whether to follow symbolic links
  • This parameter only use glob pattern
  • default: true
• if_no_files_found
  • file not founding options: warn, error or ignore. alike actions/upload-artifact
  • warn: output warning, but do not fail
  • ignore: no output and do not fail
  • error: output warning and do fail
  • default: error
• file_name
  • Filename of file.
  • This parameter can only use providing content
• file_type
  • A file type identifier.
  • ref: https://api.slack.com/types/file#file_types
• initial_comment
  • The message text introducing the file in specified channels.
  • links might not work because files.uploadv2 limitation. ref: #695
• thread_ts
  • Provide another message's ts value to upload this file as a reply. Never use a reply's ts value; use its parent instead.
• title
  • Title of file.
• retries
  • max API retry count. default retries is 3.
• delete_file_ids_before_upload
  • file deletion before upload. comma separeted file ids. this argument is purpose for previous uploaded file replacement.

• response
  • the api response
  • json structure: Summary of response
• uploaded_file_ids
  • comma separeted uploaded file ids

jobs:
  post:
    runs-on: ubuntu-latest
    steps:
      - run: 'echo ${{ github.event.inputs.message }} > message.txt'
      - uses: MeilCli/slack-upload-file@v4
        id: message
        with:
          slack_token: ${{ secrets.SLACK_TOKEN }}
          channel_id: ${{ secrets.SLACK_CHANNEL_ID }}
          file_path: 'message.txt'
          initial_comment: 'post by slack-upload-file'
      - run: 'echo ${{ fromJson(steps.message.outputs.response).files[0].file.permalink }}'

• Must: add files:read permission scope to Slack App.
• Need: change to channel_id from channels. channels is removed because it is deprecated.
• Some: change some input and output.
  • input:
    • new: delete_file_id_before_upload, old: delete_file_id_before_upload
    • title is changed, it will not send when upload by files.
  • output:
    • new: uploaded_file_ids, old: uploaded_file_id
    • response is changed.

see Contributing.md

• actions/toolkit, published by MIT License
• slackapi/node-slack-sdk, published by MIT License