Token Authorizer doesn't get linked if FunctionPayloadType missing in template.yml

[Tolsto]

There is an issue where Token Authorizers are not being linked correctly if the FunctionPayloadType is missing in the template.yml file. This is due to the default value for authorizer_type being initialized as token, but then compared against TOKEN in a case-sensitive manner.

aws-sam-cli/samcli/lib/providers/sam_api_provider.py

Lines 321 to 324 in c3e1547

	elif authorizer_type == LambdaAuthorizer.TOKEN.upper():
	authorizers[auth_name] = SamApiProvider._extract_token_lambda_authorizer(
	auth_name, function_name, prefix, identity_object
	)

[lucashuy]

Thanks for reporting this, we'll prioritize a fix for this within the team's capacity.