From fec98300ec9af6c8b5f3120a60f217983c451076 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= Date: Wed, 2 May 2018 11:35:26 +0200 Subject: Cowboy 2.4.0 --- .../2.4/manual/cowboy_constraints/index.html | 222 +++++++++++++++++++++ 1 file changed, 222 insertions(+) create mode 100644 docs/en/cowboy/2.4/manual/cowboy_constraints/index.html (limited to 'docs/en/cowboy/2.4/manual/cowboy_constraints/index.html') diff --git a/docs/en/cowboy/2.4/manual/cowboy_constraints/index.html b/docs/en/cowboy/2.4/manual/cowboy_constraints/index.html new file mode 100644 index 00000000..cb1baf31 --- /dev/null +++ b/docs/en/cowboy/2.4/manual/cowboy_constraints/index.html @@ -0,0 +1,222 @@ + + + + + + + + + + + + Nine Nines: cowboy_constraints(3) + + + + + + + + + + + + + + +
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cowboy_constraints(3)

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Name

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cowboy_constraints - Constraints

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Description

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

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

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Exports

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Built-in constraints:

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Types

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constraint()

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constraint() :: int | nonempty | fun()
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A constraint function.

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

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reason()

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reason() :: {constraint(), Reason, Value}
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+Reason :: any()
+Value  :: any()
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Reason for the constraint failure.

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

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See also

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cowboy(7), +cowboy(3), +cowboy_router(3), +cowboy_req:match_cookies(3), +cowboy_req:match_qs(3)

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+ Cowboy + 2.4 + Function Reference + +

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Navigation

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