APIにバリデーションを追加

[wheatandcat]

関連 issue

• fixes APIにバリデーションを追加 #97

対応内容

• ozzo-validationを使用してmutationにバリデーションを追加

開発用メモ

無し

[github-actions]

Code Metrics Report

	#96 (a04b502)	#99 (87e8b99)	+/-
Coverage	40.7%	40.3%	-0.5%
Code to Test Ratio	1:0.1	1:0.1	-0.0
Test Execution Time	27s	35s	+8s

Details

  |                     | #96 (a04b502) | #99 (87e8b99) |  +/-  |
  |---------------------|---------------|---------------|-------|
- | Coverage            |         40.7% |         40.3% | -0.5% |
  |   Files             |             9 |             9 |     0 |
  |   Lines             |           508 |           514 |    +6 |
  |   Covered           |           207 |           207 |     0 |
- | Code to Test Ratio  |         1:0.1 |         1:0.1 |  -0.0 |
  |   Code              |         11101 |         11139 |   +38 |
  |   Test              |          1133 |          1133 |     0 |
- | Test Execution Time |           27s |           35s |   +8s |

Code coverage of files in pull request scope (0.0% → 0.0%)

Files	Coverage	+/-
graph/schema.resolvers.go	0.0%	0.0%

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Reported by octocov