Collect data on SDK Usage

[bartekn]

Collect data using HTTP header and save the value in Started request and Finished request log entries. It will be much easier to aggregate if two headers are sent: client name (X-Client-Name) and version (X-Client-Version). Also, it looks like some EventStream implementations (especially implementation found in browsers) don't allow to send custom headers so we should allow sending them via GET parameter. Horizon should check if header is present and if not should check GET params.

SDF:

• Horizon Log client name and version #727
• JS Send client headers js-stellar-sdk#206
• Go
• Java
• Docs

Community SDKs:

• Python
• Scala
• C#
• C++
• Ruby
• iOS and macOS SDK

[ire-and-curses]

Python SDK supports this: StellarCN/py-stellar-base@d3052c8

[Synesso]

This will be present in the next release of Scala SDK.

[ire-and-curses]

I audited the SDKs and I think they all support this now 🎉

@bartekn from the original description, what docs were you thinking are needed? That's all that's left to close this.

[bartekn]

@ire-and-curses I was thinking about a simple doc somewhere here explaining what headers should be sent to activate tracking.

[tomquisel]

@theaeolianmachine just a heads up, this should be quick to knock out.

[tomquisel]

@rice2000 can you put it on your list to document these headers as Bartek mentions?

[rice2000]

@rice2000 can you put it on your list to document these headers as Bartek mentions?

I added it to the list of new docs to write. Thanks for pointing this out!

[bartekn]

Looks like it can be closed.