Can't bind command to Spacebar in Sublime Text - windows

Question

I'm using this two bindings for auto complete:
{
"keys": ["tab"],
"command": "move",
"args": {"by": "lines", "forward": true},
"context":
[
{ "key": "auto_complete_visible", "operator": "equal", "operand": true }
]
},
{
"keys": ["shift+tab"],
"command": "move",
"args": {"by": "lines", "forward": false},
"context":
[
{ "key": "auto_complete_visible", "operator": "equal", "operand": true }
]
},
I would like to add "commit_completion" command to space key:
"keys": ["space"],
"command": "commit_completion",
"context":
[
{ "key": "auto_complete_visible", "operator": "equal", "operand": true }
]
},
But it's not binding, when I press space it acts as normal space(it makes space xD). I'm able to bind it to any other key but not space. What am I missing?

Answer 1

There's not a key code for the space bar that you can bind like that; if you want to bind something to space, you need to use a literal space character:
{
"keys": [" "],
"command": "commit_completion",
"context": [
{ "key": "auto_complete_visible", "operator": "equal", "operand": true }
]
},
This is visible in the Sublime console by using sublime.log_input(True) to turn on input logging and then pressing the key; the only thing that gets logged is a character event, and not a key event.
It's also important to note that you never want to bind anything to a character like this unless you're using a context to constrain when the binding applies, or you lose the ability to type that character.