@slack/[email protected]

Bolt v4

What's Changed

New Features

Support for Agents & Assistants is now available!

Bolt now offers a simple and intuitive way to create an Agent/Assistant using the new Assistant class. Simply include the required callbacks and add the assistant to your App instance. Get up and running even quicker with a working, out-of-the-box example that utilizes OpenAI here.

Breaking Changes

We have prepared a migration guide to help BoltJS consumers migrate their Bolt v3 apps to v4.

While a few breaking changes were introduced, we don't expect a majority of bolt v3 users to require changing their apps to upgrade to v4. More complex apps may need a few tweaks. TL;DR is: if your bolt v3 app is built with TypeScript, or uses the ExpressReceiver or the AwsLambdaReceiver, or your app used previously-deprecated types or functions, best to read the migration guide.

Middleware Type Changes

In bolt we have a set of Slack*MiddlewareArgs types: for events, shortcuts, commands, and so on. They 'wrap' the underlying event payloads with additional middleware-relevant bits like a next() method, a context object for devs to augment, and so on.

Many of these types, for example the SlackEventMiddlewareArgs type, previously used a conditional to sometimes define particular additional helper utilities on the middleware arguments. For example, the say utility, or tacking on a convenience message property for message-event-related payloads. This was problematic in practice in TypeScript situations, not just internally (this change fixes #2135) within the bolt codebase but for developers as well: when the payload was not of a type that required the extra utility, these properties would be required to exist on the middleware arguments but have a value of undefined. Those of us trying to build generic middleware utilities would have to deal with TS compilation errors and needing to liberally type-cast to avoid these conditional mismatches with undefined.

Instead, these MiddlewareArgs types now conditionally create a type intersection when appropriate in order to provide this conditional-utility-extension mechanism. In practice that looks something like:

type SomeMiddlewareArgs<EventType extends string = string> = {
  // some type in here
} & (EventType extends 'message'
  // If this is a message event, add a `message` property
  ? { message: EventFromType<EventType> }
  : unknown
)

With the above, now when a message payload is wrapped up into middleware arguments, it will contain an appropriate message property, whereas a non-message payload will be intersected with unknown - effectively a type "noop." No more e.g. say: undefined or message: undefined to deal with!

Other Breaking Changes

• drops node v14 and v16 (are now EOL'ed)
• express to v4->v5; ExpressReceiver users will be exposed to express v4 -> v5 breaking changes - fixes #2242
• upgrades to @slack/socket-mode v2; SocketModeReceiver users who have attached custom event listeners to the public socketModeClient directly should read the v1 -> v2 migration guide in case the major upgrade could affect them - fixes #2225
• upgrades @slack/web-api v7; all users should read the web-api v6->v7 migration guide to see what the scope of breaking changes the client within listeners is affected by
• removed exported type: KnownKeys
• @slack/types now exist under a named export types.
• removed the SocketModeFunctions class that had a single static method on it and instead directly exposed the defaultProcessEventErrorHandler method from it.
• the built-in middleware functions ignoreSelf and directMention now no longer must be invoked as a method in order to return middleware; instead they are middleware to be used directly. this lines up the API for these built-in middlewares to match the other builtins.
• AWSReceiver's AwsEvent interface now models event payloads a bit differently; we now properly model AWS API Gateway v1 and v2 payloads separately - fixes #2272
• remove deprecated methods/modules/properties:
  • OptionsRequest interface
  • authed_users and authed_teams from event payload envelope
  • render-html-for-install-path module
  • verify and VerifyOptions from the verify-request module
  • src/receivers/http-utils.ts module

Non-breaking Changes

• expose the bundled @slack/web-api dependency under the webApi named export
• fixed an issue in AwsLambdaReceiver where apps with no registered handlers that processed an incoming event would still log out an error related to not acknowledging the request in time - fixes #2284
• dependency updates:
  • upgrades raw-body to v3
  • upgrades @slack/oauth to v3
  • removes promise.allsettled since that is natively supported in node since v14
  • moves @types/tsscmp to dev dependencies since that is not exposed to developers

Changelog

• chore(deps-dev): bump @types/node from 22.5.5 to 22.7.4 by @dependabot in #2276
• chore(deps-dev): bump @types/node from 22.7.4 to 22.7.5 by @dependabot in #2289
• chore(deps): bump cookie and express in /docs by @dependabot in #2291
• Add support for Agents/Assistants by @misscoded in #2286
• bolt v4 by @filmaj in #2254
• Publish @slack/[email protected] by @filmaj in #2294

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

Bolt v4 Release Candidate 4

A lot! We have prepared a migration guide to help bolt-js consumers migrate their bolt v3 apps to v4.

What's Changed

Breaking Changes

Middleware Type Changes

In bolt we have a set of Slack*MiddlewareArgs types: for events, shortcuts, commands, and so on. They 'wrap' the underlying event payloads with additional middleware-relevant bits like a next() method, a context object for devs to augment, and so on.

Many of these types, for example the SlackEventMiddlewareArgs type, previously used a conditional to sometimes define particular additional helper utilities on the middleware arguments. For example, the say utility, or tacking on a convenience message property for message-event-related payloads. This was problematic in practice in TypeScript situations, not just internally (this change fixes #2135) within the bolt codebase but for developers as well: when the payload was not of a type that required the extra utility, these properties would be required to exist on the middleware arguments but have a value of undefined. Those of us trying to build generic middleware utilities would have to deal with TS compilation errors and needing to liberally type-cast to avoid these conditional mismatches with undefined.

Instead, these MiddlewareArgs types now conditionally create a type intersection when appropriate in order to provide this conditional-utility-extension mechanism. In practice that looks something like:

type SomeMiddlewareArgs<EventType extends string = string> = {
  // some type in here
} & (EventType extends 'message'
  // If this is a message event, add a `message` property
  ? { message: EventFromType<EventType> }
  : unknown
)

With the above, now when a message payload is wrapped up into middleware arguments, it will contain an appropriate message property, whereas a non-message payload will be intersected with unknown - effectively a type "noop." No more e.g. say: undefined or message: undefined to deal with!

Other Breaking Changes

• drops node v14 and v16 (are now EOL'ed)
• express to v4->v5; ExpressReceiver users will be exposed to express v4 -> v5 breaking changes
  • fixes #2242
• upgrades to @slack/socket-mode v2; SocketModeReceiver users who have attached custom event listeners to the public socketModeClient directly should read the v1 -> v2 migration guide in case the major upgrade could affect them
  • fixes #2225
• upgrades @slack/web-api v7; all users should read the web-api v6->v7 migration guide to see what the scope of breaking changes the client within listeners is affected by
• removed exported type: KnownKeys
• @slack/types now exist under a named export types.
• removed the SocketModeFunctions class that had a single static method on it and instead directly exposed the defaultProcessEventErrorHandler method from it.
• the built-in middleware functions ignoreSelf and directMention now no longer must be invoked as a method in order to return middleware; instead they are middleware to be used directly. this lines up the API for these built-in middlewares to match the other builtins.
• AWSReceiver's AwsEvent interface now models event payloads a bit differently; we now properly model AWS API Gateway v1 and v2 payloads separately.
  • This resolves #2272
• remove deprecated methods/modules/properties:
  • OptionsRequest interface
  • authed_users and authed_teams from event payload envelope
  • render-html-for-install-path module
  • verify and VerifyOptions from the verify-request module
  • src/receivers/http-utils.ts module

Non-breaking Changes

• expose the bundled @slack/web-api dependency under the webApi named export
• fixed an issue in AwsLambdaReceiver where apps with no registered handlers that processed an incoming event would still log out an error related to not acknowledging the request in time. Resolves #2284
• dependency updates:
  • upgrades raw-body to v3
  • upgrades @slack/oauth to v3
  • removes promise.allsettled since that is natively supported in node since v14
  • moves @types/tsscmp to dev dependencies since that is not exposed to developers

@slack/[email protected]

Bolt v4 Release Candidate 3

A lot! We have prepared a migration guide to help bolt-js consumers migrate their bolt v3 apps to v4.

What's Changed

Breaking Changes

Middleware Type Changes

In bolt we have a set of Slack*MiddlewareArgs types: for events, shortcuts, commands, and so on. They 'wrap' the underlying event payloads with additional middleware-relevant bits like a next() method, a context object for devs to augment, and so on.

Many of these types, for example the SlackEventMiddlewareArgs type, previously used a conditional to sometimes define particular additional helper utilities on the middleware arguments. For example, the say utility, or tacking on a convenience message property for message-event-related payloads. This was problematic in practice in TypeScript situations, not just internally (this change fixes #2135) within the bolt codebase but for developers as well: when the payload was not of a type that required the extra utility, these properties would be required to exist on the middleware arguments but have a value of undefined. Those of us trying to build generic middleware utilities would have to deal with TS compilation errors and needing to liberally type-cast to avoid these conditional mismatches with undefined.

Instead, these MiddlewareArgs types now conditionally create a type intersection when appropriate in order to provide this conditional-utility-extension mechanism. In practice that looks something like:

type SomeMiddlewareArgs<EventType extends string = string> = {
  // some type in here
} & (EventType extends 'message'
  // If this is a message event, add a `message` property
  ? { message: EventFromType<EventType> }
  : unknown
)

With the above, now when a message payload is wrapped up into middleware arguments, it will contain an appropriate message property, whereas a non-message payload will be intersected with unknown - effectively a type "noop." No more e.g. say: undefined or message: undefined to deal with!

Other Breaking Changes

• drops node v14 and v16 (are now EOL'ed)
• express to v4->v5; ExpressReceiver users will be exposed to express v4 -> v5 breaking changes
  • fixes #2242
• upgrades to @slack/socket-mode v2; SocketModeReceiver users who have attached custom event listeners to the public socketModeClient directly should read the v1 -> v2 migration guide in case the major upgrade could affect them
  • fixes #2225
• upgrades @slack/web-api v7; all users should read the web-api v6->v7 migration guide to see what the scope of breaking changes the client within listeners is affected by
• removed exported type: KnownKeys
• @slack/types now exist under a named export types.
• removed the SocketModeFunctions class that had a single static method on it and instead directly exposed the defaultProcessEventErrorHandler method from it.
• the built-in middleware functions ignoreSelf and directMention now no longer must be invoked as a method in order to return middleware; instead they are middleware to be used directly. this lines up the API for these built-in middlewares to match the other builtins.
• AWSReceiver's AwsEvent interface now models event payloads a bit differently; we now properly model AWS API Gateway v1 and v2 payloads separately.
  • This resolves #2272
• remove deprecated methods/modules/properties:
  • OptionsRequest interface
  • authed_users and authed_teams from event payload envelope
  • render-html-for-install-path module
  • verify and VerifyOptions from the verify-request module
  • src/receivers/http-utils.ts module

Non-breaking Changes

• expose the bundled @slack/web-api dependency under the webApi named export
• dependency updates:
  • upgrades raw-body to v3
  • upgrades @slack/oauth to v3
  • removes promise.allsettled since that is natively supported in node since v14
  • moves @types/tsscmp to dev dependencies since that is not exposed to developers

@slack/[email protected]

What's new

This release adds support for the assistant.threads.* API methods introduced in @slack/[email protected] 🤖 as well as improvements to documentation at the new https://tools.slack.dev/bolt-js site and patches to dependencies 🔒

Example usage

More details about these endpoints can be discovered in the documentation, and listeners can be added to code to respond to incoming events like so:

app.event('assistant_thread_started', async ({ client, event, logger }) => {
  logger.info('A new thread started');
  logger.debug(event);
  const now = new Date();
  const title = await client.assistant.threads.setTitle({
    title: `Chats from ${now.toISOString()}`,
    channel_id: event.assistant_thread.channel_id,
    thread_ts: event.assistant_thread.thread_ts,
  });
  logger.debug(title);
  const suggestions = await client.assistant.threads.setSuggestedPrompts({
    channel_id: event.assistant_thread.channel_id,
    thread_ts: event.assistant_thread.thread_ts,
    title: 'Ask the computer for answers',
    prompts: [
      {
        title: 'Find the time',
        message: `What happens at ${Math.floor(now.getTime() / 1000)}`,
      },
    ],
  });
  logger.debug(suggestions);
});

app.event('assistant_thread_context_changed', async ({ client, event, logger }) => {
  logger.info('The channel of focus changed');
  logger.debug(event);
  const response = client.chat.postMessage({
    thread_ts: event.assistant_thread.thread_ts,
    channel: event.assistant_thread.channel_id,
    text: `Now visiting <#${event.assistant_thread.context.channel_id}>`,
  });
  logger.debug(response);
});

app.message(async ({ client, message, logger }) => {
  logger.info('A new message was received');
  logger.debug(message);
  if (message.subtype === 'message_changed' || message.subtype === 'message_deleted') {
    return;
  }
  const status = await client.assistant.threads.setStatus({
    channel_id: message.channel,
    thread_ts: message.thread_ts,
    status: 'is thinking...',
  });
  logger.debug(status);
  /**
    * Actual response generation could happen here!
    */
  setTimeout(async () => {
    const response = await client.chat.postMessage({
      channel: message.channel,
      thread_ts: message.thread_ts,
      text: 'How insightful!',
    });
    logger.debug(response);
  }, 3000);
});

Changes

📚 Documentation

• typo: update error link in App.ts - Thanks @ChinoUkaegbu! #2260
• docs: new URL (HOLD) - Thanks @lukegalbraithrussell! #2253

📦 Dependencies

• chore(deps-dev): bump @types/node from 22.5.4 to 22.5.5 - Thanks @dependabot! #2263
• Upgrade express version - Thanks @helzahalim! #2270
• chore(deps): bump @slack/web-api from 6.12.1 to 6.13.0 - Thanks @zimeg! #2273

🎉 New contributors

• @ChinoUkaegbu made their first contribution in #2260

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

What's Changed

• chore(deps): upgrade path-to-regexp to partially address a security vulnerability (#2242) by @filmaj in #2251

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

What's Changed

Woops! We (coughfilmajcough) removed the EnvelopedEvent export in a recent change. We are adding it back in in this patch release. Please accept our sincere apologies for this temporary breaking change in bolt 3.21.2.

Changelog

• Link to JS release notes by @bpfoster in #2239
• chore(deps-dev): bump @types/node from 22.5.2 to 22.5.4 by @dependabot in #2241
• fix: re-export EnvelopedEvent by @filmaj in #2245

New Contributors

• @bpfoster made their first contribution in #2239

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

What's Changed

The main change in this patch release is creating an npm release for the change in #2223, where exported event payload types were moved from bolt-js to @slack/types. If you see errors compiling your TypeScript-based application that look like:

Module './types' has already exported a member

.. then upgrading to this release should address the issue (see #2233 and #2234 for issue details).

• fix: pass a no-op next function to the last listener middleware by @filmaj in #2214 (fixes #1457)
• fix: remove please-upgrade-node by @filmaj in #2221 (fixes #1274)
• Bump @slack/types and consume event payloads from it by @filmaj in #2223
• fix: tsconfig - skip checking dependency d.ts files by @filmaj in #2226

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

What's Changed

This patch release brings improvements to documentation and sureness in our CI, as well as security updates to certain @slack packages - see CVE-2024-39338 and [email protected] for more details!

Changes

📚 Documentation

• docs: document custom step usage - Thanks @WilliamBergamin! #2198

🔒 Security

• chore(deps): set a minimum @slack/web-api@^6.12.1 to address CVE-2024-39338 - Thanks @zimeg! #2207

🧰 Maintenance

• ci: add bolt-ts-custom-function-template to list of test samples - Thanks @filmaj! #2205

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

What's Changed

Bolt-JS now supports Custom Steps! That's right, your trusty Bolt app now let's you expose Custom Steps in Bolt, allowing you to provide steps for use in Workflow Builder.

You can now use the new function() method to register handlers for the function_executed event. Check out our API docs on the topic to get started.

Changelog

• Add support for remote functions by @misscoded in #2026
• chore(deps): bump axios to 1.7.4 to address CVE by @helzahalim in #2201
• chore: purge the "workflow step" terminology by @WilliamBergamin in #2199

New Contributors

• @helzahalim made their first contribution in #2201

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]

@slack/[email protected]

What's Changed

• Add missing Events API payload types by @seratch in #2155
• docs: replacement steps from apps with custom functions by @lukegalbraithrussell in #2149
• Add an optional handler for invalid request signature error by @dophsquare in #2154
• Add missing properties in app_mention event payload by @seratch in #2160
• fix: add ts to PinnedMessageItem interface by @maxretries in #2164
• fix: add missing fields in ChannelCreatedEvent by @maxretries in #2166
• Fix broken link in "external select" section by @ornato-t in #2169
• Docs: adds Docusaurus site by @lukegalbraithrussell in #2174
• Docs: remove overzealous redirect by @lukegalbraithrussell in #2177
• docs - add manual redirects scripts by @lukegalbraithrussell in #2178
• Docs: Adds landing page and redirects by @lukegalbraithrussell in #2179
• Docs - fixes README image link by @lukegalbraithrussell in #2180
• Docs: remove superfluous files by @lukegalbraithrussell in #2181
• Fix Bold Text Rendering Issue by @suekou in #2183
• chore(deps-dev): bump @types/node from 22.1.0 to 20.14.2 by @dependabot in #2192
• chore(deps): bump axios to 1.7.3 to address CVE by @filmaj in #2194
• Publish @slack/[email protected] by @filmaj in #2195

New Contributors

• @dophsquare made their first contribution in #2154
• @maxretries made their first contribution in #2164
• @ornato-t made their first contribution in #2169
• @suekou made their first contribution in #2183

Full Changelog: https://github.com/slackapi/bolt-js/compare/@slack/[email protected]...@slack/[email protected]