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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | 1x 1x 1x 1x 1x 1x 1x 13x 13x 13x 13x 1x 12x 1x 11x 11x 10x 2x 8x 2x 6x 5x 2x 2x 1x | const { DynamoDBClient } = require('@aws-sdk/client-dynamodb')
const { DynamoDBDocumentClient, GetCommand, DeleteCommand } = require('@aws-sdk/lib-dynamodb')
const { requirePermission } = require('../utils/requirePermission')
const { RESERVED_ENTITY_IDS } = require('../utils/constants')
const client = new DynamoDBClient({})
const docClient = DynamoDBDocumentClient.from(client)
const deleteEntityHandler = async (event) => {
try {
const id = event.pathParameters?.entityId
const tenantId = event.requestContext?.authorizer?.claims?.['custom:tenantId']
if (!tenantId) {
return {
statusCode: 401,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Missing tenant context' })
}
}
if (!id) {
return {
statusCode: 400,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Missing id' })
}
}
// Prevent deletion of system entities
Iif (RESERVED_ENTITY_IDS.includes(id)) {
return {
statusCode: 403,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({
error: `Cannot delete system entity "${id}". System entities are protected.`
})
}
}
// Verify entity exists and ownership
const result = await docClient.send(
new GetCommand({
TableName: process.env.TABLE_NAME,
Key: { id }
})
)
if (!result.Item) {
return {
statusCode: 404,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Entity not found' })
}
}
// Only owner tenant can delete
if (result.Item.tenantId !== tenantId) {
return {
statusCode: 403,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Access denied - only owner can delete' })
}
}
await docClient.send(
new DeleteCommand({
TableName: process.env.TABLE_NAME,
Key: { id }
})
)
return {
statusCode: 204,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: ''
}
} catch (error) {
console.error('Error:', error)
return {
statusCode: 500,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Failed to delete entity' })
}
}
}
// Wrap with permission check: require 'entity-{id}:delete' permission
exports.handler = requirePermission(deleteEntityHandler, {
permission: (event) => `entity-${event.pathParameters?.entityId}:delete`
})
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