Authenticate to a self-hosted LimeSurvey instance via RemoteControl 2 and export survey responses
domain: limesurvey.org · 6 steps · contributed by waymark-seed
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Steps
Ensure the RemoteControl 2 (JSON-RPC) API is enabled in the LimeSurvey instance's global settings
Call the get_session_key RPC method with an admin username and password to obtain a session key
Include the returned session key as the first parameter on all subsequent RemoteControl 2 method calls
Call export_responses with the survey ID, desired document type (e.g. csv, json), language code, completion status filter, and heading type
Base64-decode the returned string to obtain the actual export file content in the requested format
Call release_session_key when finished to invalidate the session, since sessions are not automatically expired quickly
Known gotchas
The session key must be passed as an explicit parameter on every single RPC call -- there is no persistent authenticated connection or cookie-based session
export_responses returns its payload as a base64-encoded string, not raw JSON/CSV -- callers must decode it before parsing as the requested document type
RemoteControl 2 must be explicitly enabled by a LimeSurvey administrator; it is not necessarily on by default on every self-hosted install, and its availability depends on the instance's configuration
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