HTTP CSV Logger

appends log entries to csv files. CSV file names are configurable by request parameters. Any parameters can be logged to CSV. Post parameters must be application/x-www-form-urlencoded

write to csv file

Non-existing files will be created with CSV header names. Existing files will be appended to.

POST /api/logs/:participantId/:mode/:version
body: { 
    id: 'Sw4Dfks1',
    stimulus: 'spawn_intro.wav',
    'onset time': '22:45:11',
    'response time': '22:45:25',
    'onset time since experiment start': 2394735,
    'response time since experiment start': 6036334
}

upsert CSV file with header

upserts a file at ./data/${participantId}_${mode}_${version}.csv

creates CSV header line by sorting request body keys alphabetically:

id,onset time,onset time since experiment start,response time,response time since experiment start,stimulus

append log entry

creates CSV entry line by sorting request body keys alphabetically and joining values into:

Sw4Dfks1,22:45:11,2394735,22:45:25,6036334,spawn_intro.wav

---

When request body attributes are added, renamed, or deleted :version should be changed to avoid mixing old CSV data-formats.

list all logged files

GET /api/logs

example result (single file):

[
    {
        "name": "participant_mode_version.csv",
        "path": "/etc/apps/logToCSV/data/participant_mode_version.csv",
        "url": "data/participant_mode_version.csv"
    }
]

get a specific file

GET /api/logs/:participantId/:mode/:version

returns the content of specified file.

delete a file

DELETE /api/logs/:participantId/:mode/:version