Data Dictionary

Get metadata: datasources, tables or variables.



Argument Description
RESOURCE Resource identification in the format <datasource>[.<table>[:<variable>]]. Wild card * is supported. Each project has a datasource which is identified by the project’s name.


Authentication can be done by username/password credentials OR by personal access token OR by certificate/private key pair (two-way SSL authentication).

Option Description
--opal OPAL, -o OPAL Opal server base url
--user USER, -u USER Credentials auth: user name (requires a password)
--password PASSWORD, -p PASSWORD Credentials auth: user password (requires a user name)
--otp, -ot Whether a one-time password is to be provided (required when connecting with username/password AND two-factor authentication is enabled)
--token TOKEN, -tk TOKEN Token auth: user’s personal access token
--ssl-cert SSL_CERT, -sc SSL_CERT Two-way SSL auth: certificate/public key file (requires a private key)
--ssl-key SSL_KEY, -sk SSL_KEY Two-way SSL auth: private key file (requires a certificate)


Option Description
-h, --help Show the command help’s message.
--verbose, -v Verbose output.
--json, -j Output pretty-print JSON


To fetch the dictionary associated to a datasource:

opal dict datashield --opal --user administrator --password password

To fetch the dictionary associated to a table in a pretty format:

opal dict CNSIM.CNSIM1 --opal --user administrator --password password -j

To fetch the description of a variable:

opal dict CNSIM.CNSIM1:PM_BMI_CONTINUOUS -o -u administrator -p password -j

Wild cards can also be used:

# Get all datasources
opal dict "*" --opal --user administrator --password password

# Get all tables from datashield datasource
opal dict "datashield.*" --opal --user administrator --password password

# Get all variables CNSIM.CNSIM1 table
opal dict "CNSIM.CNSIM1:*" --opal --user administrator --password password