api (ticdc): check http request context in api helper

[asddongmen]

What problem does this PR solve?

Issue Number: close #11046

What is changed and how it works?

Check List

Tests

• Unit test

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

None

[CharlesCheung96]

Perhaps the redundant code can be reduced through a common ctxChecker function? eg:

func ctxChecker(ctx, fn func() error) {
    if fn() != nil {
		return nil, errors.Trace(err)
	}
	if ctx.Err() != nil {
		return nil, errors.Trace(ctx.Err())
	}
}

[asddongmen]

I prefer to write them each time in the api_helpers.go because it is more straightforward.

[asddongmen]

/retest

[codecov]

Codecov Report

Attention: Patch coverage is 48.64865% with 19 lines in your changes are missing coverage. Please review.

Project coverage is 57.6232%. Comparing base (c07bce4) to head (97cb577).

Additional details and impacted files

Components	Coverage Δ
cdc	61.4267% <48.6486%> (-0.0040%)	⬇️
dm	51.2162% <ø> (+0.0040%)	⬆️
engine	63.3738% <ø> (-0.0212%)	⬇️

Flag	Coverage Δ
unit	57.6232% <48.6486%> (-0.0023%)	⬇️

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

@@               Coverage Diff                @@
##             master     #11165        +/-   ##
================================================
- Coverage   57.6254%   57.6232%   -0.0023%     
================================================
  Files           849        849                
  Lines        125934     125951        +17     
================================================
+ Hits          72570      72577         +7     
- Misses        47966      47975         +9     
- Partials       5398       5399         +1     

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CharlesCheung96, sdojjy

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Needs approval from an approver in each of these files:

• OWNERS [CharlesCheung96,sdojjy]
• cdc/api/v2/OWNERS [sdojjy]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-27 11:15:33.423396528 +0000 UTC m=+2688687.180532101: ☑️ agreed by sdojjy.
• 2024-05-28 02:03:50.918165075 +0000 UTC m=+2741984.675300660: ☑️ agreed by CharlesCheung96.

[asddongmen]

/retest

[asddongmen]

/retest

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #11397.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #11398.