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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 | 1x 1x 1x 1x 10x 16x 4x 4x 4x 4x 4x 4x 4x 4x 4x 1x 10x 10x 10x 10x 1x 9x 1x 8x 7x 1x 6x 1x 5x 5x 5x 1x 1x 1x 1x 1x 1x 1x 5x 1x 5x 5x 1x 5x 5x 1x 5x 5x 1x 1x | const { DynamoDBClient } = require('@aws-sdk/client-dynamodb')
const {
DynamoDBDocumentClient,
GetCommand,
DeleteCommand,
QueryCommand,
BatchWriteCommand
} = require('@aws-sdk/lib-dynamodb')
const client = new DynamoDBClient({})
const docClient = DynamoDBDocumentClient.from(client)
const getCorsHeaders = () => ({
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*'
})
async function batchDelete(tableName, keys) {
if (keys.length === 0) return
for (let i = 0; i < keys.length; i += 25) {
let unprocessed = keys.slice(i, i + 25)
let attempts = 0
while (unprocessed.length > 0 && attempts < 4) {
const result = await docClient.send(
new BatchWriteCommand({
RequestItems: {
[tableName]: unprocessed.map((key) => ({ DeleteRequest: { Key: key } }))
}
})
)
const remaining = result.UnprocessedItems?.[tableName]
unprocessed = remaining?.map((r) => r.DeleteRequest.Key) ?? []
Iif (unprocessed.length > 0) {
await new Promise((r) => setTimeout(r, 200 * 2 ** attempts))
attempts++
}
}
}
}
exports.handler = async (event) => {
try {
const flowId = event.pathParameters?.flowId
const userId = event.requestContext?.authorizer?.claims?.sub
if (!userId) {
return {
statusCode: 401,
headers: getCorsHeaders(),
body: JSON.stringify({ error: 'Not authenticated' })
}
}
if (!flowId) {
return {
statusCode: 400,
headers: getCorsHeaders(),
body: JSON.stringify({ error: 'Missing flowId' })
}
}
// Verify flow exists and caller is the owner
const flowResult = await docClient.send(
new GetCommand({
TableName: process.env.FLOWS_TABLE_NAME,
Key: { id: flowId }
})
)
if (!flowResult.Item) {
return {
statusCode: 404,
headers: getCorsHeaders(),
body: JSON.stringify({ error: 'Flow not found' })
}
}
if (flowResult.Item.ownerId !== userId) {
return {
statusCode: 403,
headers: getCorsHeaders(),
body: JSON.stringify({ error: 'Only the flow owner can delete the flow' })
}
}
// 1. Delete all items for each entity in this flow
const entitiesResult = await docClient.send(
new QueryCommand({
TableName: process.env.ENTITIES_TABLE_NAME,
IndexName: 'flowIndex',
KeyConditionExpression: 'flowId = :flowId',
ExpressionAttributeValues: { ':flowId': flowId }
})
)
const entities = entitiesResult.Items ?? []
for (const entity of entities) {
let lastKey = undefined
do {
const itemsResult = await docClient.send(
new QueryCommand({
TableName: process.env.ITEMS_TABLE_NAME,
KeyConditionExpression: 'entityId = :entityId',
ExpressionAttributeValues: { ':entityId': entity.id },
ExclusiveStartKey: lastKey
})
)
const items = itemsResult.Items ?? []
await batchDelete(
process.env.ITEMS_TABLE_NAME,
items.map((item) => ({ entityId: item.entityId, id: item.id }))
)
lastKey = itemsResult.LastEvaluatedKey
} while (lastKey)
}
// 2. Delete all entities
await batchDelete(
process.env.ENTITIES_TABLE_NAME,
entities.map((e) => ({ id: e.id }))
)
// 3. Delete all roles
const rolesResult = await docClient.send(
new QueryCommand({
TableName: process.env.ROLES_TABLE_NAME,
IndexName: 'flowIndex',
KeyConditionExpression: 'flowId = :flowId',
ExpressionAttributeValues: { ':flowId': flowId }
})
)
await batchDelete(
process.env.ROLES_TABLE_NAME,
(rolesResult.Items ?? []).map((r) => ({ PK: r.PK, SK: r.SK }))
)
// 4. Delete all memberships
const membershipsResult = await docClient.send(
new QueryCommand({
TableName: process.env.FLOW_MEMBERSHIPS_TABLE_NAME,
IndexName: 'flowIndex',
KeyConditionExpression: 'flowId = :flowId',
ExpressionAttributeValues: { ':flowId': flowId }
})
)
await batchDelete(
process.env.FLOW_MEMBERSHIPS_TABLE_NAME,
(membershipsResult.Items ?? []).map((m) => ({ userId: m.userId, flowId: m.flowId }))
)
// 5. Delete the flow itself
await docClient.send(
new DeleteCommand({
TableName: process.env.FLOWS_TABLE_NAME,
Key: { id: flowId }
})
)
return {
statusCode: 204,
headers: getCorsHeaders(),
body: ''
}
} catch (error) {
console.error('Error deleting flow:', error)
return {
statusCode: 500,
headers: getCorsHeaders(),
body: JSON.stringify({ error: 'Failed to delete flow' })
}
}
}
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