New x-goog-api-client information for gRPC-based APIs

[jmuk]

(sorry not filed an issue so far); we are going to add x-goog-api-client header info to the gRPC-based APIs in certain format:

• common-grpc based: "gl-node/(node version) gccl/(library version) grpc/(grpc version)"
• APIs on top of gapic: "gl-node/(node version) gccl/(library version) gapic/(autogen version) gax/(gax version) grpc/(grpc version)"

Also the gapic autogen files will generate its own http header -- so that if the user chooses to use gapic layer directly, it has the information, but not with gccl part. This means we need to regenerate the autogen files too.

This issue tracks its progress.

The following APIs will be affected:

• bigtable: common-grpc based (Creates the new x-goog-api-client header. #2020)
• datastore: common-grpc based (Creates the new x-goog-api-client header. #2020)
• language: on top of gapic (Update language client autogen. #2022)
• language/gapic (Update language client autogen. #2022, Fix the ordering of x-goog-api-client info #2037)
• logging: common-grpc based (Creates the new x-goog-api-client header. #2020)
• logging/gapic (Regenerate logging API client #2031)
• monitoring/gapic (Regenerate monitoring APIs #2059)
• pubsub: common-grpc based (Creates the new x-goog-api-client header. #2020)
• pubsub/gapic (Regenerate pubsub autogen API client #2032)
• spanner: on top of gapic (Regenerate spanner API clients. #2066)
• spanner/gapic (Regenerate spanner API clients. #2066)
• speech: on top of gapic (Update speech API client autogen. #2025)
• speech/gapic (Update speech API client autogen. #2025, Fix the ordering of x-goog-api-client info #2037)
• vision: on top of gapic (Update vision API client autogen. #2026)
• vision/gapic (Update vision API client autogen. #2026, Fix the ordering of x-goog-api-client info #2037)

[jmuk]

cc: @bjwatson @omaray @danoscarmike

[bjwatson]

Can we track the PRs for each API, the same way as we're doing for Python and Ruby?

[bjwatson]

@stephenplusplus @jmuk Can we track the PRs for each API, the same way as we're doing for Python and Ruby?

[bjwatson]

@jmuk Please note that this ordering is wrong:

APIs on top of gapic: "gl-node/(node version) gccl/(library version) gax/(gax version) gapic/(autogen version) grpc/(grpc version)"

The gapic/ token should appear before the gax/ token:

APIs on top of gapic: "gl-node/(node version) gccl/(library version) gapic/(autogen version) gax/(gax version) grpc/(grpc version)"

[jmuk]

My bad, it seems the ordering is different from both the expected order and what I wrote here, sigh. I'll make a fix for that.

[bjwatson]

Thanks, Jun.

[jmuk]

Now the code on master has this fully; @stephenplusplus or @callmehiphop -- please push new version of these API clients to npmjs.com, so that further API calls can contain this data.

[bjwatson]

Thanks @jmuk!

@stephenplusplus and @callmehiphop please let me know when all of the client libs have been republished with these new headers.

[stephenplusplus]

I'll be publishing these tomorrow. It involves a bit more work than expected because of a breaking change in @google-cloud/common-grpc.

[stephenplusplus]

All modules have been published.