Tracing SQL queries with the X-Ray SDK for Node.js - AWS X-Ray

Tracing SQL queries with the X-Ray SDK for Node.js

Instrument SQL database queries by wrapping your SQL client in the corresponding X-Ray SDK for Node.js client method.

  • PostgreSQLAWSXRay.capturePostgres()

    var AWSXRay = require('aws-xray-sdk'); var pg = AWSXRay.capturePostgres(require('pg')); var client = new pg.Client();
  • MySQLAWSXRay.captureMySQL()

    var AWSXRay = require('aws-xray-sdk'); var mysql = AWSXRay.captureMySQL(require('mysql')); ... var connection = mysql.createConnection(config);

When you use an instrumented client to make SQL queries, the X-Ray SDK for Node.js records information about the connection and query in a subsegment.

Including additional data in SQL subsegments

You can add additional information to subsegments generated for SQL queries, as long as it's mapped to a whitelisted SQL field. For example, to record the sanitized SQL query string in a subsegment, you can add it directly to the subsegment's SQL object.

Example Assign SQL to sugsegment

const queryString = 'SELECT * FROM MyTable'; connection.query(queryString, ...); // Retrieve the most recently created subsegment const subs = AWSXRay.getSegment().subsegments; if (subs & & subs.length > 0) { var sqlSub = subs[subs.length - 1]; sqlSub.sql.sanitized_query = queryString; }

For a full list of whitelisted SQL fields, see SQL Queries in the AWS X-Ray Developer Guide.