WeeDB Key Value Get

Get WeeDB KeyValue

Overview

The WeeDB Key Value Get node allows you to retrieve data from a WeeDB key-value store within your n8n workflows. You can either fetch the value for a specific key or search for multiple keys using a regular expression pattern. This node is useful in scenarios where you need to access configuration values, user data, or any other information stored in WeeDB during workflow execution.

Practical examples:

  • Retrieve a user's profile by their unique key.
  • Search and return all keys matching a certain pattern (e.g., all keys starting with "user_").
  • Fetch application settings or secrets stored in WeeDB.

Properties

Display Name Type Meaning
Single or All options Choose between fetching a single value by key ("Single") or searching for keys by regex ("Search Keys").
Key string The key to fetch if "Single" is selected, or the regex pattern to search keys if "Search Keys" is selected.

Output

  • The output is a JSON object with a single field:
    • item: Contains the result of the operation.
      • If "Single" is selected, item will be the value associated with the specified key (or possibly null if not found).
      • If "Search Keys" is selected, item will contain the results of the key search (the structure depends on the underlying WeeDB implementation, typically an array of matching keys or key-value pairs).

Example output (for "Single"):

{
  "item": "value_of_the_key"
}

Example output (for "Search Keys"):

{
  "item": [
    {"key": "user_1", "value": "Alice"},
    {"key": "user_2", "value": "Bob"}
  ]
}

(Actual structure may vary depending on WeeDB's searchKeys method.)

Dependencies

  • WeeDB: Requires access to a WeeDB database instance.
  • Credentials: Needs a configured weeDBConnection credential in n8n, which must include a valid databaseId.

Troubleshooting

  • Failed to initialize WeeDB:

    • Cause: The node could not connect to the WeeDB instance, possibly due to incorrect credentials or missing database ID.
    • Resolution: Check that your weeDBConnection credential is set up correctly and that the databaseId is valid.

  • No value returned:

    • Cause: The specified key does not exist, or the regex pattern did not match any keys.
    • Resolution: Verify the key or pattern you are using.

  • Invalid regex pattern (when using "Search Keys"):

    • Cause: The provided pattern is not a valid regular expression.
    • Resolution: Ensure your pattern is a valid regex supported by WeeDB.

Links and References

  • n8n Documentation
  • WeeDB documentation (if available; check your organization's resources or contact the developer)

Discussion