32 lines
1.3 KiB
TypeScript
32 lines
1.3 KiB
TypeScript
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import * as cdk from 'aws-cdk-lib';
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import { Construct } from 'constructs';
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import * as dynamodb from 'aws-cdk-lib/aws-dynamodb';
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export class ConversationLogConstruct extends Construct {
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public readonly table: dynamodb.Table;
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constructor(scope: Construct, id: string) {
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super(scope, id);
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this.table = new dynamodb.Table(this, 'Table', {
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tableName: 'seahaven-conversations',
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// PK: Slack user ID (e.g. U0123456789)
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partitionKey: { name: 'userId', type: dynamodb.AttributeType.STRING },
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// SK: ISO-8601 timestamp — enables range queries for session lookup
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sortKey: { name: 'timestamp', type: dynamodb.AttributeType.STRING },
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billingMode: dynamodb.BillingMode.PAY_PER_REQUEST,
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removalPolicy: cdk.RemovalPolicy.RETAIN,
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pointInTimeRecoverySpecification: { pointInTimeRecoveryEnabled: true },
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// TTL attribute — records are automatically expired after 90 days
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timeToLiveAttribute: 'ttl',
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});
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// GSI for looking up all turns in a given Bedrock session (for context retrieval)
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this.table.addGlobalSecondaryIndex({
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indexName: 'sessionId-index',
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partitionKey: { name: 'sessionId', type: dynamodb.AttributeType.STRING },
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sortKey: { name: 'timestamp', type: dynamodb.AttributeType.STRING },
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});
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}
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}
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