set_metadata(metadata)

Sets metadata about channel(s), for instance the name and units.

Arguments

• metadata (dict): a map from channel id (string) to a dict that can be serialized to a JSON Metadata message by json.dumps. If any of the given channel ids don't exist, they will be created and populated with default values before being set.

Raises

• JCoreAPIAuthException: if authentication is required and the connection is not authenticated.
• JCoreAPITimeoutException: if the request times out.
• JCoreAPIConnectionClosedException: if the connection closes or was already closed.
• JCoreAPIErrorResponseException: if the server responds with an error.
• JCoreAPIInvalidMessageException: if the client receives an invalid response.

Example

from jcore_api import connect_local

conn = connect_local()

conn.set_metadata({'helloworld': {'name': 'Hello World'}})
conn.get_metadata('helloworld')
# returns {u'helloworld': {u'max': 200, u'precision': 1, u'name': u'Hello World', u'min': 0}}