Configurable Variables

// Port on which to run the service.
configurable int port = 8080;

//`configurable string password = ?;`
//
// This specifies that the password must be supplied in a configuration file.

Configurable Variables

A module-level variable can be declared as configurable. The initializer of a configurable variable can be overridden at runtime (e.g., by a TOML file). A variable where configuration is required can use an initializer of ?. The type of a configurable variable must be subtype of anydata.

For more information, see Making Ballerina Programs Configurable.

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Asynchronous Function Calls

configurable int port = 8080;

Port on which to run the service.

configurable string password = ?;

This specifies that the password must be supplied in a configuration file.

bal run configurable_variables.bal

Configurable Variables

Configurable Variables

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