Add biome for linting and formatting

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
           node-version: 22.x
       - name: Install dependencies
         run: npm ci
-      - name: Run linter (eslint)
+      - name: Run linter (biome)
         run: npm run lint
       - name: Run type check (typescript)
         run: npm run typecheck

.husky/pre-commit

@@ -0,0 +1 @@
+npx lint-staged

biome.json

@@ -0,0 +1,201 @@
+{
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "files": { "includes": ["**", "!package-lock.json"] },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 80,
+    "attributePosition": "auto",
+    "bracketSameLine": false,
+    "bracketSpacing": true,
+    "expand": "auto",
+    "useEditorconfig": true
+  },
+  "linter": {
+    "rules": {
+      "preset": "none",
+      "complexity": {
+        "noAdjacentSpacesInRegex": "error",
+        "noBannedTypes": "error",
+        "noExtraBooleanCast": "error",
+        "noUselessCatch": "error",
+        "noUselessEscapeInRegex": "error",
+        "noUselessTypeConstraint": "error"
+      },
+      "correctness": {
+        "noConstAssign": "error",
+        "noConstantCondition": "error",
+        "noEmptyCharacterClassInRegex": "error",
+        "noEmptyPattern": "error",
+        "noGlobalObjectCalls": "error",
+        "noInnerDeclarations": "error",
+        "noInvalidConstructorSuper": "error",
+        "noNonoctalDecimalEscape": "error",
+        "noPrecisionLoss": "error",
+        "noSelfAssign": "error",
+        "noSetterReturn": "error",
+        "noSwitchDeclarations": "error",
+        "noUndeclaredVariables": "error",
+        "noUnreachable": "error",
+        "noUnreachableSuper": "error",
+        "noUnsafeFinally": "error",
+        "noUnsafeOptionalChaining": "error",
+        "noUnusedLabels": "error",
+        "noUnusedVariables": "error",
+        "useIsNan": "error",
+        "useValidForDirection": "error",
+        "useValidTypeof": "error",
+        "useYield": "error"
+      },
+      "style": {
+        "noCommonJs": "error",
+        "noInferrableTypes": "error",
+        "noNamespace": "error",
+        "noNonNullAssertion": "warn",
+        "useArrayLiterals": "error",
+        "useAsConstAssertion": "error",
+        "useBlockStatements": "off"
+      },
+      "suspicious": {
+        "noAsyncPromiseExecutor": "error",
+        "noCatchAssign": "error",
+        "noClassAssign": "error",
+        "noCompareNegZero": "error",
+        "noConsole": {
+          "level": "warn",
+          "options": {
+            "allow": ["error"]
+          }
+        },
+        "noControlCharactersInRegex": "error",
+        "noDebugger": "error",
+        "noDuplicateCase": "error",
+        "noDuplicateClassMembers": "error",
+        "noDuplicateElseIf": "error",
+        "noDuplicateObjectKeys": "error",
+        "noDuplicateParameters": "error",
+        "noEmptyBlockStatements": "error",
+        "noExplicitAny": "warn",
+        "noExtraNonNullAssertion": "error",
+        "noFallthroughSwitchClause": "error",
+        "noFunctionAssign": "error",
+        "noGlobalAssign": "error",
+        "noImportAssign": "error",
+        "noIrregularWhitespace": "error",
+        "noMisleadingCharacterClass": "error",
+        "noMisleadingInstantiator": "error",
+        "noNonNullAssertedOptionalChain": "error",
+        "noPrototypeBuiltins": "error",
+        "noRedeclare": "error",
+        "noShadowRestrictedNames": "error",
+        "noSparseArray": "error",
+        "noUnsafeNegation": "error",
+        "noUselessRegexBackrefs": "error",
+        "noWith": "error",
+        "useAdjacentOverloadSignatures": "error",
+        "useGetterReturn": "error",
+        "useNamespaceKeyword": "error"
+      }
+    },
+    "includes": [
+      "**",
+      "!**/node_modules",
+      "!**/dist",
+      "!**/.build",
+      "!**/.esbuild",
+      "!**/.eslintignore",
+      "!**/.eslintrc",
+      "!**/.gitignore",
+      "!**/.nvmrc",
+      "!**/package-lock.json",
+      "!**/package.json",
+      "!**/secrets.json",
+      "!**/tsconfig.json",
+      "!**/tsconfig.paths.json"
+    ]
+  },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "single",
+      "quoteProperties": "asNeeded",
+      "trailingCommas": "none",
+      "semicolons": "always",
+      "arrowParentheses": "always",
+      "bracketSameLine": false,
+      "quoteStyle": "single",
+      "attributePosition": "auto",
+      "bracketSpacing": true
+    }
+  },
+  "html": {
+    "formatter": {
+      "indentScriptAndStyle": false,
+      "selfCloseVoidElements": "always"
+    }
+  },
+  "overrides": [
+    {
+      "includes": ["*.ts", "*.tsx", "*.mts", "*.cts"],
+      "linter": {
+        "rules": {
+          "complexity": { "noArguments": "error" },
+          "correctness": {
+            "noConstAssign": "off",
+            "noGlobalObjectCalls": "off",
+            "noInvalidConstructorSuper": "off",
+            "noSetterReturn": "off",
+            "noUndeclaredVariables": "off",
+            "noUnreachable": "off",
+            "noUnreachableSuper": "off",
+            "useValidTypeof": "off"
+          },
+          "style": { "useConst": "error", "useSpreadOverApply": "error" },
+          "suspicious": {
+            "noDuplicateClassMembers": "off",
+            "noDuplicateObjectKeys": "off",
+            "noDuplicateParameters": "off",
+            "noFunctionAssign": "off",
+            "noImportAssign": "off",
+            "noRedeclare": "off",
+            "noUnsafeNegation": "off",
+            "noVar": "error",
+            "useGetterReturn": "off"
+          }
+        }
+      }
+    },
+    {
+      "includes": ["*.ts", "*.tsx", "*.mts", "*.cts"],
+      "linter": {
+        "rules": {
+          "complexity": { "noArguments": "error" },
+          "correctness": {
+            "noConstAssign": "off",
+            "noGlobalObjectCalls": "off",
+            "noInvalidConstructorSuper": "off",
+            "noSetterReturn": "off",
+            "noUndeclaredVariables": "off",
+            "noUnreachable": "off",
+            "noUnreachableSuper": "off",
+            "useValidTypeof": "off"
+          },
+          "style": { "useConst": "error", "useSpreadOverApply": "error" },
+          "suspicious": {
+            "noDuplicateClassMembers": "off",
+            "noDuplicateObjectKeys": "off",
+            "noDuplicateParameters": "off",
+            "noFunctionAssign": "off",
+            "noImportAssign": "off",
+            "noRedeclare": "off",
+            "noUnsafeNegation": "off",
+            "noVar": "error",
+            "useGetterReturn": "off"
+          }
+        }
+      }
+    }
+  ]
+}

infra/lib/feedback-api-stack.ts

@@ -1,13 +1,13 @@
 import * as cdk from 'aws-cdk-lib';
-import { Construct } from 'constructs';
-import { NodejsFunction } from 'aws-cdk-lib/aws-lambda-nodejs';
-import * as lambda from 'aws-cdk-lib/aws-lambda';
-import * as iam from 'aws-cdk-lib/aws-iam';
 import * as apigw from 'aws-cdk-lib/aws-apigateway';
+import * as iam from 'aws-cdk-lib/aws-iam';
+import * as lambda from 'aws-cdk-lib/aws-lambda';
+import { NodejsFunction } from 'aws-cdk-lib/aws-lambda-nodejs';
 import * as sns from 'aws-cdk-lib/aws-sns';
 import * as ssm from 'aws-cdk-lib/aws-ssm';
-import { FeedbackApi5xxErrorAlarm } from '../monitoring/feedback-api-5xx-error-alarm';
+import { Construct } from 'constructs';
 import { FeedbackApi4xxErrorAlarm } from '../monitoring/feedback-api-4xx-error-alarm';
+import { FeedbackApi5xxErrorAlarm } from '../monitoring/feedback-api-5xx-error-alarm';
 
 interface FeedbackApiStackProps extends cdk.StackProps {
   pathToSrcDirectory: string;

infra/monitoring/feedback-api-4xx-error-alarm.ts

@@ -1,6 +1,6 @@
-import { Construct } from 'constructs';
-import * as cloudwatch from 'aws-cdk-lib/aws-cloudwatch';
 import { aws_cloudwatch_actions, Duration } from 'aws-cdk-lib';
+import * as cloudwatch from 'aws-cdk-lib/aws-cloudwatch';
+import { Construct } from 'constructs';
 import { FeedbackApiAlarmProps } from './types';
 
 export class FeedbackApi4xxErrorAlarm extends Construct {

infra/monitoring/feedback-api-5xx-error-alarm.ts

@@ -1,6 +1,6 @@
-import { Construct } from 'constructs';
-import * as cloudwatch from 'aws-cdk-lib/aws-cloudwatch';
 import { aws_cloudwatch_actions, Duration } from 'aws-cdk-lib';
+import * as cloudwatch from 'aws-cdk-lib/aws-cloudwatch';
+import { Construct } from 'constructs';
 import { FeedbackApiAlarmProps } from './types';
 
 export class FeedbackApi5xxErrorAlarm extends Construct {