Add typescript declaration file

[MohamedLamineAllal]

pg.types.builtins is missing from @types/pg Even though the type imports is set to be automaticly resolved from pgTypes import pgTypes = require("pg-types"); export const types: typeof pgTypes;

Having a declarative typing directly set in pg-types. Will give better flexibility and better update time.

Here a PR that propose a fix.

If there is anything that is not ok. Let me know.

Context: (latest versions)

(builtins are missing)

(after fix)

[MohamedLamineAllal]

Thank you sir. I will add tests and then commit again.

[MohamedLamineAllal]

I just added tests and a minimal change to types declaration. (added TypeFormat type, and the overloading of the setTypeParser Function). Let me know if there is anything to add.

[bendrucker]

Thanks for working on this. Made a couple small changes:

• Removed the use of npx, not required in npm scripts (they already include ./node_modules/.bin in $PATH
• Included the TS test script in the main npm test
• Added a package to only do TS testing on node versions 8 and above, since tsd does not run on node 4

Just need to follow up when I’m at my laptop and update the lockfile since I made the edits via the web interface. Should be good to merge and cut a new minor release in an hour or so.

What should we do about the types in DefinitelyTyped now that there is official support? I assume we shouldn’t remove them and break existing users, but I’m hoping there’s somewhere we can put a deprecation notice.

[MohamedLamineAllal]

Hi sir. I'm late. i looked at the changes. Thank you for the details.

For types in DefinitelyTyped. Yea, it should be exactly as you said (most logical thing, as otherwise i will think to update @types/pg-types, which is useless). And for the notice, i think it would be nice to just add it to this repo package Readme. I will fill a PR suggesting a deprecation notice. I will add a section Typescript. Where i will explain the typescript support. And also put the deprecation notice.

Thank you again sir.