Add docs for managing sessions

[martinkuba]

Session management is now available in a prototype state:

https://github.com/open-telemetry/opentelemetry-js/blob/main/experimental/packages/web-common/src/SessionManager.ts

The readme of the web-common package has a basic example of how it is configured
https://github.com/open-telemetry/opentelemetry-js/tree/main/experimental/packages/web-common#sessions

It might be useful to have a dedicated documentation that talks about sessions in more detail. This would make it more discoverable for users.

[manmathbh]

Hi @martinkuba! I'd like to work on creating dedicated documentation for session management.

Proposed Approach

I plan to create comprehensive documentation that includes:

1. Overview Section

   • What session management is and why it's useful
   • Use cases for tracking user sessions in browser instrumentation

2. Getting Started

   • Installation/setup requirements
   • Basic configuration example

3. Configuration Guide

   • Detailed explanation of SessionManager options
   • Code examples for different scenarios

4. Advanced Usage

   • Custom session ID generation
   • Session lifecycle management
   • Integration with spans/traces

5. Best Practices & Troubleshooting

   • Common patterns
   • Known limitations (since it's in prototype)
   • FAQ

I'll review the existing code in SessionManager.ts and the web-common README to ensure accuracy.

Question: Should this live in:

• The opentelemetry-js repo (alongside web-common package)?
• The opentelemetry. io docs site?
• Both (with main docs in one, reference in the other)?

I'm preparing for the LFX mentorship on Prometheus/OpenTelemetry interoperability documentation, so this is a great opportunity to contribute meaningful docs to the OTel ecosystem!

Can I be assigned to this issue?

[martinkuba]

Hi @manmathbh, this sounds great, thank you for taking this on! I have assigned the issue to you. Let me know if you have any questions.

[martinkuba]

@manmathbh I missed your question about where this should live, sorry about that. I think it should be in this repository under docs folder.