Class SlackExecutor

java.lang.Object
ai.nervemind.app.executor.SlackExecutor
All Implemented Interfaces:
NodeExecutor
@Component public class SlackExecutor extends Object implements NodeExecutor
Node executor for Slack messaging via the Slack Web API.

Sends messages to Slack channels and retrieves channel history using the official Slack Web API over HTTP. No SDK dependency required. Requires a Slack Bot Token (xoxb-*) stored as a credential.

Node Configuration

Slack node parameters
Parameter Type Required Description
action String Yes SEND or HISTORY
channel String Yes Channel ID (e.g. C01234567)
message String SEND Message text (supports Slack mrkdwn)
limit Integer No Max messages for HISTORY (default: 10)

Authentication

Assign an API_KEY credential containing the Slack Bot Token (xoxb-...). The token needs chat:write scope for SEND and channels:history for HISTORY.

Output Data

  • success - Boolean indicating API success
  • ok - Slack API ok field
  • ts - Message timestamp (SEND)
  • channel - Channel ID
  • messages - List of messages (HISTORY)
  • response - Full API response as JSON string
Since:
1.1.0
See Also:

  • Constructor Details

    • SlackExecutor

      public SlackExecutor()
      Default constructor.

  • Method Details

    • execute

      public Map<String,Object> execute(ai.nervemind.common.domain.Node node, Map<String,Object> input, ExecutionService.ExecutionContext context)
      Description copied from interface: NodeExecutor
      Executes the business logic for this node type.
      Specified by:
      execute in interface NodeExecutor
      Parameters:
      node - The node definition containing parameters and configuration. Use Node.parameters() to access user settings.
      input - Combined output from all upstream nodes that connected to this node. For simple flows, this contains the direct predecessor's output. For merge nodes, it contains combined data.
      context - Verification context providing access to workflow-scoped services, logger, and execution metadata.
      Returns:
      A Map containing the results of this node's execution. Keys in this map become available variables for downstream nodes.
      Note: Returning null is treated as an empty map.

    • getNodeType

      public String getNodeType()
      Description copied from interface: NodeExecutor
      Unique identifier for the node type this executor handles. This must match the 'type' field in the JSON definition of the node.
      Specified by:
      getNodeType in interface NodeExecutor
      Returns:
      The unique type string (e.g., "httpRequest", "llmChat").