Micronaut features some built-in conversions that are useful, which are detailed below.

Durations can be specified by appending the unit with a number. Supported units are , ms, m etc. The following table summarizes examples:

For example to configure the default HTTP client read timeout:

Using Duration Values

Lists and arrays can be specified in Java properties files as comma-separated values or in YAML using native YAML lists. The generic types are used to convert the values. For example in YAML:

Specifying lists or arrays in YAML

my:
        integers:
            - 1
            - 2
        urls:
            - http://foo.com

Or in Java properties file format:

Specifying lists or arrays in Java properties comma-separated

Alternatively you can use an index:

Specifying lists or arrays in Java properties using index

my.app.integers[1]=2

For the above example configurations you can define properties to bind to with the target type supplied via generics:

Using @ReadableBytes

public void setMaxContentLength(@ReadableBytes int maxContentLength) {
    this.maxContentLength = maxContentLength;
}

With the above in place you can set micronaut.http.client.max-content-length using the following values:

The annotation can be used on any setter to allow the date format to be specified when binding java.time date objects.

Using for Dates