Phoenix v1.3.0 Phoenix.MissingParamError exception View Source

Raised when a key is expected to be present in the request parameters, but is not.

This exception is raised by Phoenix.Controller.scrub_params/2 which:

Checks to see if the required_key is present (can be empty)
Changes all empty parameters to nils (“” -> nil).

If you are seeing this error, you should handle the error and surface it to the end user. It means that there is a parameter missing from the request.

Link to this section Summary

Functions

exception(msg)

Callback implementation for Exception.exception/1

message(exception)

Callback implementation for Exception.message/1

Link to this section Functions

exception(msg)

exception(Keyword.t()) :: Exception.t()

exception(String.t()) :: Exception.t()

Callback implementation for Exception.exception/1.

message(exception)

message(Exception.t()) :: String.t()

Callback implementation for Exception.message/1.