numbers & integers

The number/integer types allows the describing of various number formats through a combination of the type and format attribute, along with a number of attributes for validating the data, the spec should cover most use cases.

Available formats are:

Type	Format	Explanation	Example
number		Any number integer/float at any precision.	10 or 1.9 or 9223372036854775807
number	float	32-bit floating point number.	1.9
number	double	64-bit floating point number.	1.7976931348623157
integer		Any integer number.	2147483647 or 9223372036854775807
integer	int32	32-bit integer.	2147483647
integer	int64	64-bit integer.	9223372036854775807

Below are some examples of defining number/integer types:


# Any number
schema:
    type: number
# A 32-bit floating point number
schema:
    type: number
    format: float
# A 64-bit floating point number
schema:
    type: number
    format: double
# Any integer
schema:
    type: integer
# A 32-bit integer
schema:
    type: integer
    format: int32
# A 64-bit integer
schema:
    type: integer
    format: int64

Various tools may treat a number/integer without a format attribute as a type capable of holding the closest representation of that number in the target language. For example, a number might be represented by a double, and an integer by an int64. Therefore, it's recommended that you be explicit with the format of your number type and always populate the format attribute.

The number type also has some optional attributes for additional validation:

minimum - The minimum inclusive number the value should contain.
maximum - The maximum inclusive number the value should contain.
exclusiveMinimum - Make the minimum number exclusive.
exclusiveMaximum - Make the maximum number exclusive.
multipleOf - Specify the number/integer is a multiple of the provided value.

Some examples are below:


# An integer with a minimum inclusive value of 0
schema:
    type: integer
    format: int32
    minimum: 10
# An integer with a minimum exclusive value of 0
schema:
    type: integer
    format: int32
    minimum: 0
    exclusiveMinimum: true
# A float with a range between 0 and 1
schema:
    type: number
    format: float
    minimum: 0
    maximum: 1
# A double with an exclusive maximum of 100
schema:
    type: number
    format: double
    maximum: 100
    exclusiveMaximum: true
# An 64 but integer that must be a multiple of 5
schema:
    type: integer
    format: int64
    multipleOf: 5