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Add HTTP/W3C text format serializer to Tag propagation component #445

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mayurkale22
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Updates #297 This is the HTTP version of of #431.

Based on W3C correlation context format: https://github.com/w3c/correlation-context/blob/master/correlation_context/HTTP_HEADER_FORMAT.md

There will be another PR to use these serializer functions in the HTTP plugin to propagate tags on wire.

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codecov-io commented Mar 25, 2019

Codecov Report

Merging #445 into master will increase coverage by 0.02%.
The diff coverage is n/a.

Impacted file tree graph

@@            Coverage Diff             @@
##           master     #445      +/-   ##
==========================================
+ Coverage      95%   95.02%   +0.02%     
==========================================
  Files         147      149       +2     
  Lines        9566     9655      +89     
  Branches      680      683       +3     
==========================================
+ Hits         9088     9175      +87     
- Misses        478      480       +2
Impacted Files Coverage Δ
src/index.ts 100% <0%> (ø) ⬆️
test/test-text-format.ts 100% <0%> (ø)
src/tags/propagation/text-format.ts 94.11% <0%> (ø)

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*
* OpenCensus uses W3C Correlation Context as the HTTP text format.
* https://github.com/w3c/correlation-context/blob/master/correlation_context/
* HTTP_HEADER_FORMAT.md
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Nit: could you move the HTTP_HEADER_FORMAT.md to the line above so the link is not broken across lines? I think links are a good exception to the 80 char line limit

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SG, done

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LGTM, I assume there will be another PR adding the Correlation-Context header?

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LGTM, I assume there will be another PR adding the Correlation-Context header?

Yes, the actual use of the Correlation-Context header will be done in a follow up PR.

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5 participants