You can install this package from Melpa
M-x package-install RET company-flow RET
flow is in your path.
(eval-after-load 'company (add-to-list 'company-backends 'company-flow))
Buffer local variable that should point to the flow executable. Defaults to
"flow". Set to
nil to disable
For best performance, you can set this to the actual flow binary in your project. Here's one way to do that:
List of major modes where
company-flow should provide completions if it is
company-backends. Set to
nil to enable
company-flow for all major modes.