feat: add status api to detect api ready

[hunjixin]

关联的Issues (Related Issues)

close

改动 (Proposed Changes)

附注 (Additional Info)

自查清单 (Checklist)

在你认为本 PR 满足被审阅的标准之前，需要确保 / Before you mark the PR ready for review, please make sure that:

• 符合Venus项目管理规范中关于PR的相关标准 / The PR follows the PR standards set out in the Venus project management guidelines
• 具有清晰明确的commit message / All commits have a clear commit message.
• 包含相关的的测试用例或者不需要新增测试用例 / This PR has tests for new functionality or change in behaviour or not need to add new tests.
• 包含相关的的指南以及文档或者不需要新增文档 / This PR has updated usage guidelines and documentation or not need
• 通过必要的检查项 / All checks are green

[hunjixin]

filecoin-project/venus#4887

[codecov-commenter]

Codecov Report

Merging #116 (be069e2) into master (9dc368b) will decrease coverage by 0.15%.
The diff coverage is 0.00%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #116      +/-   ##
==========================================
- Coverage   63.50%   63.35%   -0.15%     
==========================================
  Files          30       30              
  Lines        2181     2186       +5     
==========================================
  Hits         1385     1385              
- Misses        725      730       +5     
  Partials       71       71              

Flag	Coverage Δ
unittests	63.35% <0.00%> (-0.15%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
main.go	0.00% <0.00%> (ø)
marketevent/market_client.go	67.59% <0.00%> (-2.78%)	⬇️
walletevent/wallet_client.go	69.28% <0.00%> (+2.14%)	⬆️

[simlecode]

LGTM