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| 1 | +const tracer = require("dd-trace").init(); |
| 2 | + |
| 3 | +const { datadog, sendDistributionMetric } = require("datadog-lambda-js"); |
| 4 | + |
| 5 | +// Minimal example of tracing to reduce flakiness |
| 6 | +async function handle(event, context) { |
| 7 | + const span = tracer.scope().active(); |
| 8 | + |
| 9 | + const responsePayload = { message: "hello, dog!" }; |
| 10 | + |
| 11 | + sendDistributionMetric("serverless.integration_test.execution", 1, "function:process-input-traced"); |
| 12 | + |
| 13 | + const { recordIds, eventType } = getRecordIds(event); |
| 14 | + |
| 15 | + if (recordIds) { |
| 16 | + responsePayload.recordIds = recordIds; |
| 17 | + } |
| 18 | + |
| 19 | + if (eventType) { |
| 20 | + responsePayload.eventType = eventType; |
| 21 | + } else { |
| 22 | + const requestId = getAPIGatewayRequestId(event); |
| 23 | + |
| 24 | + if (requestId) { |
| 25 | + responsePayload.eventType = "APIGateway"; |
| 26 | + |
| 27 | + if (span) { |
| 28 | + span.setTag("api_gateway_request_id", requestId); |
| 29 | + } |
| 30 | + } |
| 31 | + } |
| 32 | + |
| 33 | + if (span) { |
| 34 | + span.setTag("event_type", responsePayload.eventType); |
| 35 | + } |
| 36 | + |
| 37 | + return responsePayload; |
| 38 | +} |
| 39 | + |
| 40 | +const getRecordIds = tracer.wrap("getRecordIds", (event) => { |
| 41 | + const recordIds = []; |
| 42 | + let eventType = null; |
| 43 | + if (event.Records) { |
| 44 | + event.Records.forEach((record) => { |
| 45 | + if (record.messageId) { |
| 46 | + eventType = "SQS"; |
| 47 | + recordIds.push(record.messageId); |
| 48 | + } |
| 49 | + if (record.Sns) { |
| 50 | + eventType = "SNS"; |
| 51 | + recordIds.push(record.Sns.MessageId); |
| 52 | + } |
| 53 | + if (record.s3) { |
| 54 | + eventType = "S3"; |
| 55 | + const bucketName = record.s3.bucket.name; |
| 56 | + const objectKey = record.s3.object.key; |
| 57 | + recordIds.push(`${bucketName}/${objectKey}`); |
| 58 | + } |
| 59 | + }); |
| 60 | + } |
| 61 | + |
| 62 | + if (eventType) { |
| 63 | + const span = tracer.scope().active(); |
| 64 | + |
| 65 | + if (span) { |
| 66 | + span.setTag("record_event_type", eventType); |
| 67 | + span.setTag("record_ids", recordIds.join()); |
| 68 | + } |
| 69 | + } |
| 70 | + |
| 71 | + return { recordIds, eventType }; |
| 72 | +}); |
| 73 | + |
| 74 | +const getAPIGatewayRequestId = tracer.wrap("getAPIGatewayRequestId", (event) => { |
| 75 | + let requestId; |
| 76 | + |
| 77 | + if (event.requestContext) { |
| 78 | + requestId = event.requestContext.requestId; |
| 79 | + |
| 80 | + const span = tracer.scope().active(); |
| 81 | + |
| 82 | + if (span) { |
| 83 | + span.setTag("api_gateway_request_id", requestId); |
| 84 | + span.setTag("event_type", "APIGateway"); |
| 85 | + } |
| 86 | + } |
| 87 | + |
| 88 | + return requestId; |
| 89 | +}); |
| 90 | + |
| 91 | +module.exports.handle = datadog(handle); |
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