From 48f39402181d959cad88cb3f460210c007169f50 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= Date: Wed, 12 May 2021 11:13:47 +0200 Subject: Cowboy 2.9.0 --- .../2.9/manual/cowboy_constraints/index.html | 195 +++++++++++++++++++++ 1 file changed, 195 insertions(+) create mode 100644 docs/en/cowboy/2.9/manual/cowboy_constraints/index.html (limited to 'docs/en/cowboy/2.9/manual/cowboy_constraints/index.html') diff --git a/docs/en/cowboy/2.9/manual/cowboy_constraints/index.html b/docs/en/cowboy/2.9/manual/cowboy_constraints/index.html new file mode 100644 index 00000000..2a6155a8 --- /dev/null +++ b/docs/en/cowboy/2.9/manual/cowboy_constraints/index.html @@ -0,0 +1,195 @@ + + + + + + + + + + Nine Nines: cowboy_constraints(3) + + + + + + + + + + + + + + +

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cowboy_constraints(3)

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Name

cowboy_constraints - Constraints

Description

The module cowboy_constraints defines the built-in constraints in Cowboy and provides an interface for manipulating these constraints.

Constraints are functions that define what type of input is allowed. They are used throughout Cowboy, from the router to query strings to cookies.

Exports

Built-in constraints:

cowboy_constraints:int(3) - Integer constraint +
cowboy_constraints:nonempty(3) - Non-empty constraint +

Types

constraint()

constraint() :: int | nonempty | fun()

A constraint function.

The atom constraints are built-in, see the corresponding function in the exports list above.

reason()

reason() :: {constraint(), Reason, Value}
+
+Reason :: any()
+Value  :: any()

Reason for the constraint failure.

It includes the constraint function in question, a machine-readable error reason and the value that made the constraint fail.

99s

cowboy_constraints(3)

Name

Description

Exports

Types

constraint()

reason()

See also

+ Cowboy + 2.9 + Function Reference + +

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