GAGauntletWizard·Dec 13, 2020
The segment "GraphQL vs gRPC API"[1] touches on something near and dear to my heart: You should write API-first services, and wrap them in templates.
The ideal way you write server-side rendered page on your website is to write some code that gathers all the data you'll need, then when you have a big struct that contains everything you need to render the page, execute a template over it. As a side effect, you can set this up as a RPC call - You can do all of the data gathering in a function that matches a GRPC protobuf, and then wrap that with a function that matches http.HandlerFunc. Then you've got a well-structured RPC should ever you need to expose "a page" as "a call"
I used to wish for more languages to handle PHP like inlining of code - Most of your website is usually in the template. I still think that's true, but separating out t
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he data-gathering is valuable, because that data gathering can fail. You can have a SQL Timeout or a retry failure or simply need to 403 for authorization purposes: any number of backend problems, and you want to serve a different template for those. Golang's html/template (and text/template) are just the right mix of inline code, extensibility from external code, and not focusing too much on error conditions. They're not useful if one of your functions will error in the middle, but they give you the flexibility to do things like conditional-formatting.
[1]https://github.com/graphikDB/graphik#graphql-vs-grpc-api