added generic Query, Params, Headers, and Body types#1160
Merged
mcollina merged 4 commits intofastify:masterfrom Sep 17, 2018
jineshshah36:master
Merged
added generic Query, Params, Headers, and Body types#1160mcollina merged 4 commits intofastify:masterfrom jineshshah36:master
mcollina merged 4 commits intofastify:masterfrom
jineshshah36:master
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jineshshah36
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As an example how I can use this in a real-world example: However, they are all optional, so I could also do the following: And finally, as it's non-breaking, this also works and automatically infers defaults: |
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Good work! Can you add that example to our tests as well? |
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I added tests and a section in the typescript docs explaining how to use it. |
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This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. |
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npm run testandnpm run benchmarkFirst off, this is a completely non-breaking change for typescript users. The main change here is that I converted the query, params, headers, and body types into generics that default to the existing type definitions. Since we can set the schema validators, I think it makes sense to also allow us to exactly type the pieces that can be validated since we will know exactly what their types should be. However, this should not be required which is why I defaulted these new generic types to their existing values, making this feature completely opt-in for typescript users.
Right now, overriding one of the generic types will be slightly verbose since typescript cannot infer generic parameters when one is overridden out of order, but generic parameter type inference is already on their roadmap for 3.2 (microsoft/TypeScript#26349). My opinion is that this should be merged now since it isn't breaking, and once 3.2 comes out, it will only be easier.