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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | 2x 2x 2x 2x 2x 10x 10x 8x 8x 1x 2x 1x 2x 13x 13x 13x 1x 12x 1x 11x 11x 1x 10x 10x 1x 111x 9x 2x 7x 1x 6x 6x 5x 1x 4x 1x 3x 6x 3x 3x 5x 4x 6x 6x 3x 1x 1x | const { DynamoDBClient } = require('@aws-sdk/client-dynamodb')
const { DynamoDBDocumentClient, BatchGetCommand, GetCommand } = require('@aws-sdk/lib-dynamodb')
const { authenticateRequest, hasPermission, canAccessEntity } = require('../shared/auth-helper')
const client = new DynamoDBClient({})
const docClient = DynamoDBDocumentClient.from(client)
function parseRequestBody(body) {
Iif (!body) return {}
if (typeof body === 'string') {
try {
return JSON.parse(body)
} catch {
throw new Error('Invalid JSON body')
}
}
if (typeof body === 'object') return body
return {}
}
exports.handler = async (event) => {
try {
const auth = await authenticateRequest(event)
if (!auth || auth.error) {
return {
statusCode: 401,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: auth?.error || 'Authentication required' })
}
}
if (!hasPermission(auth, 'items:read')) {
return {
statusCode: 403,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Permission denied: items:read required' })
}
}
const entityId = event.pathParameters?.entityId
if (!entityId) {
return {
statusCode: 400,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Missing entityId' })
}
}
let payload
try {
payload = parseRequestBody(event.body)
} catch (error) {
return {
statusCode: 400,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: error.message })
}
}
const ids = Array.isArray(payload.ids) ? payload.ids.filter((id) => typeof id === 'string') : []
if (!ids.length) {
return {
statusCode: 400,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'ids array is required' })
}
}
if (ids.length > 100) {
return {
statusCode: 400,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'ids array exceeds max size of 100' })
}
}
const uniqueIds = [...new Set(ids)]
const entityResult = await docClient.send(
new GetCommand({
TableName: process.env.ENTITIES_TABLE_NAME,
Key: { id: entityId }
})
)
if (!entityResult.Item) {
return {
statusCode: 404,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Entity not found' })
}
}
if (!canAccessEntity(auth, entityResult.Item)) {
return {
statusCode: 403,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Access denied to this entity' })
}
}
const flowId =
entityResult.Item.visibility === 'public'
? entityResult.Item.flowId
: auth.type === 'apikey' && (auth.allowedEntityIds || []).includes('*')
? entityResult.Item.flowId
: auth.flowId
const keys = uniqueIds.map((id) => ({ entityId, id }))
const batchResult = await docClient.send(
new BatchGetCommand({
RequestItems: {
[process.env.TABLE_NAME]: {
Keys: keys
}
}
})
)
const rawItems = batchResult.Responses?.[process.env.TABLE_NAME] || []
const visibleItems = rawItems.filter((item) => item.flowId === flowId)
const itemById = new Map(visibleItems.map((item) => [item.id, item]))
const orderedItems = uniqueIds.map((id) => itemById.get(id)).filter(Boolean)
const missingIds = uniqueIds.filter((id) => !itemById.has(id))
return {
statusCode: 200,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({
items: orderedItems,
missingIds
})
}
} catch (error) {
console.error('Error looking up items:', error)
return {
statusCode: 500,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
},
body: JSON.stringify({ error: 'Failed to lookup items' })
}
}
}
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