chore(deps): bump @slack/web-api from 7.17.0 to 8.0.0

[dependabot]

Bumps @slack/web-api from 7.17.0 to 8.0.0.

Release notes

Sourced from @​slack/web-api's releases.

@​slack/web-api@​8.0.0

Major Changes

• fc98c8c: Drop Node.js 18 support. The minimum supported Node.js version is now 20.

• fc98c8c: Redesigned error handling to use proper Error subclasses instead of plain objects with a code property.

  Migration: Replace if (error.code === ErrorCode.PlatformError) with if (error instanceof WebAPIPlatformError). All error classes extend a common SlackError base class (which extends Error), so you can also catch all SDK errors with if (error instanceof SlackError).

  New error class hierarchy:

  • SlackError (abstract base)
    • WebAPIPlatformError — Slack API returned ok: false
    • WebAPIRequestError — Network/transport failure (original error in cause)
    • WebAPIHTTPError — Non-200 HTTP status from Slack
    • WebAPIRateLimitedError — HTTP 429 with retryAfter seconds
    • WebAPIFileUploadInvalidArgumentsError — Invalid file upload arguments
    • WebAPIFileUploadReadFileDataError — Failed to read file data for upload

  Removed factory functions (these were internal but exported — use new with the corresponding class instead):

  • errorWithCode()
  • platformErrorFromResult() → new WebAPIPlatformError(...)
  • requestErrorWithOriginal() → new WebAPIRequestError(...)
  • httpErrorFromResponse() → new WebAPIHTTPError(...)
  • rateLimitedErrorWithDelay() → new WebAPIRateLimitedError(...)

  Other breaking type changes:

  • WebAPIHTTPError.headers type changed from IncomingHttpHeaders to Record<string, string>.
  • The CodedError interface is deprecated — use instanceof checks with specific error classes instead.
  • Error .name values changed from generic 'Error' to descriptive class names (e.g., 'WebAPIPlatformError').

• fc98c8c: Replaced axios with the standard Fetch API for all HTTP transport. The following options and types have been removed from WebClientOptions:

  • agent — Use the new fetch option to provide a custom fetch implementation with proxy or keep-alive support. For proxies, prefer the built-in http.setGlobalProxyFromEnv() or NODE_USE_ENV_PROXY=1 (Node.js 24+). For advanced use cases:

    import { fetch, Agent } from "undici";
    const client = new WebClient(token, {
      fetch: (url, init) =>
        fetch(url, {
          ...init,
          dispatcher: new Agent({ keepAliveTimeout: 60_000 }),
        }),
    });

  • tls and TLSOptions — Configure TLS via a custom fetch implementation with an undici Agent, or use the NODE_EXTRA_CA_CERTS environment variable.
  • requestInterceptor and RequestInterceptor type — Wrap the fetch function to intercept or modify requests before they are sent.
  • adapter and AdapterConfig type — Use the fetch option instead.
  • RequestConfig type (was an alias for Axios' InternalAxiosRequestConfig) — Removed entirely.
  • attachOriginalToWebAPIRequestError option — Removed. The original error is now always available via the standard cause property on WebAPIRequestError.

... (truncated)

Commits

• 70e15b8 chore: release (#2653)
• fc98c8c feat: Node Slack SDK major version release candidate (#2603)
• c37b47e docs: updates webhook page to match readme (#2658)
• bb49d99 fix(web-api): redact response body in debug logs (#2652)
• 2b6a0ce chore: release (#2650)
• a2f6e77 feat(webhook): add opt-in retries to IncomingWebhook and WebhookTrigger (#2641)
• a5bd5c8 feat(webhook): add WebhookTrigger class for Workflow Builder triggers (#2615)
• b0e335b chore: release (#2649)
• a795b86 feat: expand app manifest types for agent apps (#2648)
• 12b94a2 chore: release (#2642)
• Additional commits viewable in compare view

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Summary by cubic

Bumps @slack/web-api from 7.17.0 to 8.0.0 in apps/insights and apps/slack. This major release moves HTTP transport from axios to the Fetch API, replaces coded plain-object errors with Error subclasses, and raises the minimum Node.js version to 20.

Migration

• Replace error.code === ErrorCode.PlatformError checks with error instanceof WebAPIPlatformError; other SDK errors can be caught via SlackError.
• Replace removed WebClientOptions fields (agent, tls, requestInterceptor, adapter) with a custom fetch implementation.
• Use Node.js 20+.

^{Written for commit 4b35b34. Summary will update on new commits.}

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