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[shared] add new interceptor to identity gRPC clients
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Authored by varun on Oct 10 2023, 9:20 PM.
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Details

Summary

adding a new interceptor to both gRPC clients that inserts code version and device type into the request metadata. we'll eventually need this to tell clients to upgrade to a version that supports device lists

Test Plan

inspected the request metadata on the identity service side and confirmed that code version and device type appeared

Depends on D9441

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alchemy (branched from master)
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Event Timeline

varun requested review of this revision.Oct 10 2023, 9:37 PM
bartek added inline comments.
keyserver/addons/rust-node-addon/src/identity_client/mod.rs
27–28 ↗(On Diff #31885)

How about creating a build.rs script that reads the facrts/version.js and generates this constant? Something like this example.

shared/grpc_clients/src/identity/authenticated.rs
49–52 ↗(On Diff #31885)

Is it worth extracting this as a type alias?

shared/grpc_clients/src/identity/shared.rs
39–57 ↗(On Diff #31885)

I'm surprised that this isn't built into the tonic client library, unless it is but I couldn't find it.

This revision is now accepted and ready to land.Oct 11 2023, 2:42 AM
keyserver/addons/rust-node-addon/src/identity_client/mod.rs
27–28 ↗(On Diff #31885)

thanks for the suggestion! i've done this now

shared/grpc_clients/src/identity/authenticated.rs
49–52 ↗(On Diff #31885)

yes i think so

shared/grpc_clients/src/identity/shared.rs
39–57 ↗(On Diff #31885)

i think tower middleware is the new idiomatic way to do this stuff but i didn't want to completely change things

varun requested review of this revision.Oct 11 2023, 9:13 PM

requesting review to make sure feedback was addressed correctly

bartek requested changes to this revision.Oct 11 2023, 11:12 PM

Requesting because of that misleading comment leftover.

keyserver/addons/rust-node-addon/build.rs
9–12 ↗(On Diff #31946)

Not sure if this is still worth but some people recommend adding

const VERSIONS_JS_PATH: &str = "../../../lib/facts/version.js";
println!("cargo:rerun-if-changed={}", VERSIONS_JS_PATH);
33 ↗(On Diff #31946)

In contrast to other unwraps, this one might actually fail

keyserver/addons/rust-node-addon/src/identity_client/mod.rs
26–28 ↗(On Diff #31946)

A little more verbose and IMO cleaner way:

mod generated {
  // We get the CODE_VERSION from this generated file
  include!(concat!(env!("OUT_DIR"), "/version.rs"));
}

pub use generated::CODE_VERSION;
pub const DEVICE_TYPE: &str = "keyserver";

But not feeling very strongly.

lib/facts/version.js
5–7 ↗(On Diff #31946)

This comment is no longer relevant

This revision now requires changes to proceed.Oct 11 2023, 11:12 PM

remove misleading comment and address latest feedback

This revision is now accepted and ready to land.Oct 12 2023, 9:16 AM