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Diffstat (limited to 'guide/handlers.md')
| -rw-r--r-- | guide/handlers.md | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/guide/handlers.md b/guide/handlers.md index e2c1264..5ffe401 100644 --- a/guide/handlers.md +++ b/guide/handlers.md @@ -41,7 +41,8 @@ Custom protocol upgrades ------------------------ The `my_protocol` module above will be used for further processing -of the request. It requires only one callback, `upgrade/4`. +of the request. It should use the `cowboy_sub_protocol` behaviour, +which requires only one callback, `upgrade/4`. It receives the request object, the middleware environment, and the handler this request has been routed to along with its options. |