GRPC API

[joe-getcouragenow]

Would you accept a GRPC API ?

I need to access quid from various languages and so GPRC makes that easy from flutter, golang and rust.

The existing API can live along side a GRPC, so it wont break the current node based admin gui.

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I was actually thinking of making a Admin GUI using flutter web, just easier to manage and extend i find. I guess you however hoe vuejs for a reason and so dont want a PR for this ?

anyway, let me know...

[synw]

GPRC makes that easy

Thanks for your proposition. Question: how easier would it be than the http way?

Actually I would prefer some help with the client request libraries (libs to manage requests with transparent renew of the access tokens and request retries, like the js one). I plan to release this js lib separatly and make some for Dart and Python first. A grpc api would need to be maintained on the long term if we adopt it

I was actually thinking of making a Admin GUI using flutter web

Well I prefer maintaining some Flutter code as well than using the js/css/html combo. But actually I think that Flutter web is not mature enough, and the rendering is not very classic and less efficient for an admin interface on a computer. It could be interesting to make a Flutter web app to have the admin interface on the phone, I did not bother to make it responsive, but is it really useful at this stage?

[joe-getcouragenow]

heres my own opinion:
About GRPC
GRPC code generates all the code and give you 90% of the code that you already hand code.
GRPC middleware does the all important metrics and logging for you too.

Here is how i load up the man cmd to support both serving grpc and grpc.web AND flutter web, without any envoy needed
https://github.com/getcouragenow/packages/blob/master/maintemplate/server/cmd/main.go#L85

• disegard the "local". that just for when i dont use envoy, and you dont need envoy i think.

And to load up the other grpc Services into the Server its easy:
https://github.com/getcouragenow/packages/blob/master/maintemplate/server/cmd/main.go#L74
Which calls this: https://github.com/getcouragenow/packages/blob/master/mod-chat/server/pkg/service/server.go

All routing, params on a request, etc etc are all handled 100% by the proto like here:
https://github.com/getcouragenow/packages/blob/master/mod-chat/server/api/service.proto

I have not added much middleware except logging: https://github.com/getcouragenow/packages/blob/master/mod-chat/server/pkg/service/server.go#L19
Adding openconsensus would be the obvious one to add:
https://opencensus.io/guides/grpc/go/

https://opencensus.io/integrations/redis/go/

https://opencensus.io/integrations/sql/go_sql/

https://opencensus.io/integrations/mongodb/go_driver/

https://opencensus.io/integrations/mongodb/mongostatusd/

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About Flutter
I use flutter web for a very large project and also cross compile it to desktop and mobile.
Zero code differences.
Its actually very mature and very fast. Load time is a bit bigger but for an admin tool i think its fine. And it natively creates offline cache with service worker so after the firs load it never reloads unless you release a new flutter web build.
Its basically developer friendly seamless, and i have been using it for quite a while.

[joe-getcouragenow]

Oh and code generation of the Dart and golang code works fine.

[olibre]

Hi @joe-getcouragenow
That's great to have gRPC on Quid project.
But I have one question about the gRPC support for JS and/or WebAssembly:
Is it possible to generate gRPC client code to be used by an app running in a browser ? (web front-end)

I think gRPC is very nice when the user is used with gRPC.
But if a user is used with HTTP/REST APIs, they may prefer to use a classic REST API in lieu of having to download/install/upgrade gRPC compiler and (manually) generate/update obscure source code to be used by their Quid client.

Quiq is designed to be maintained in the long term.
Would you be ready to help maintaining/document the gRPC Proto3 files + server code in the long term?

[joe-getcouragenow]

Hi @joe-getcouragenow
That's great to have gRPC on Quid project.
But I have one question about the gRPC support for JS and/or WebAssembly:
Is it possible to generate gRPC client code to be used by an app running in a browser ? (web front-end)

Yes. The same flutter grpc code works in web, desktop and mobile. Its pretty cool.

I think gRPC is very nice when the user is used with gRPC.
But if a user is used with HTTP/REST APIs, they may prefer to use a classic REST API in lieu of having to download/install/upgrade gRPC compiler and (manually) generate/update obscure source code to be used by their Quid client.

Its only this to install:

• brew install protobuf
• go get github.com/protocolbuffers/protobuf-go
• go get github.com/grpc/grpc-go

then script to gen the code like: protoc ${PROTO_SOURCE_DIR}/${PROTO_SOURCE_FILE} --go-grpc_out=proto --go_out=proto

Quiq is designed to be maintained in the long term.
Would you be ready to help maintaining/document the gRPC Proto3 files + server code in the long term?

Yes, because we are building something similar already in our project, and i was planning to integrate into it.

The only problem for me is your using relying on an external DB here: https://github.com/synw/quid/blob/master/quidlib/server/db/db.go

I would need to add an adapter for embedded DB.like Badger. These are both badger based for example.

• https://github.com/genjidb/genji
• https://github.com/mkawserm/flamed