feat(node): Add ESM support for postgres.js instrumentation #17961
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Pull request overview
This PR adds ESM (ECMAScript Module) support for postgres.js instrumentation by refactoring the patching approach from file-based module instrumentation to module export wrapping. The instrumentation now wraps the main postgres export function to intercept SQL instance creation and instrument query methods dynamically.
Key changes:
- Refactored instrumentation to wrap the main postgres export instead of patching internal files
- Added comprehensive ESM test coverage alongside existing CJS tests
- Enhanced SQL query sanitization to handle PostgreSQL placeholders ($1, $2, etc.)
Reviewed changes
Copilot reviewed 14 out of 14 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| packages/node/src/integrations/tracing/postgresjs.ts | Complete rewrite of instrumentation using module export wrapping; adds ESM support and improves query/connection handling |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/test.ts | Added ESM tests, requestHook tests, URL initialization tests, and unsafe query tests |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario.mjs | New ESM scenario file for testing ESM imports |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario.cjs | New CJS scenario file with consolidated initialization |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario.js | Enhanced with additional query test cases |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario-url.mjs | New ESM test scenario for URL-based postgres initialization |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario-url.cjs | New CJS test scenario for URL-based postgres initialization |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario-unsafe.cjs | New test scenario for sql.unsafe() method |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario-requestHook.mjs | New ESM test scenario for requestHook functionality |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario-requestHook.js | New CJS test scenario for requestHook functionality |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/instrument.mjs | New ESM instrumentation file for tests |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/instrument.cjs | New CJS instrumentation file for tests |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/instrument-requestHook.mjs | New ESM instrumentation with requestHook configuration |
| dev-packages/node-integration-tests/suites/tracing/postgresjs/instrument-requestHook.cjs | New CJS instrumentation with requestHook configuration |
Comments suppressed due to low confidence (1)
dev-packages/node-integration-tests/suites/tracing/postgresjs/scenario.js:83
- The floating promise should be handled with proper error handling. Consider using
run().catch(console.error)or wrapping in an async IIFE to ensure errors are not silently swallowed.
// eslint-disable-next-line @typescript-eslint/no-floating-promises
run();
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| let spanName = sanitizedSqlQuery?.trim() || ''; | ||
| if (!spanName) { | ||
| // Fallback: try to extract operation from the sanitized query | ||
| const operationMatch = sanitizedSqlQuery?.match(SQL_OPERATION_REGEX); | ||
| spanName = operationMatch?.[1] ? `db.${operationMatch[1].toLowerCase()}` : 'db.query'; |
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Logic error: spanName is set to the trimmed sanitizedSqlQuery on line 363, which means the condition !spanName on line 364 will only be true if sanitizedSqlQuery is empty or undefined. However, line 366 attempts to match the same sanitizedSqlQuery against SQL_OPERATION_REGEX. This code path is unreachable when sanitizedSqlQuery has content. The fallback logic appears to be intended for cases where sanitizedSqlQuery exists but is not suitable as a span name, but the current implementation doesn't achieve this.
| let spanName = sanitizedSqlQuery?.trim() || ''; | |
| if (!spanName) { | |
| // Fallback: try to extract operation from the sanitized query | |
| const operationMatch = sanitizedSqlQuery?.match(SQL_OPERATION_REGEX); | |
| spanName = operationMatch?.[1] ? `db.${operationMatch[1].toLowerCase()}` : 'db.query'; | |
| let spanName: string; | |
| const operationMatch = sanitizedSqlQuery?.match(SQL_OPERATION_REGEX); | |
| if (operationMatch?.[1]) { | |
| spanName = `db.${operationMatch[1].toLowerCase()}`; | |
| } else if (sanitizedSqlQuery?.trim()) { | |
| spanName = sanitizedSqlQuery.trim(); | |
| } else { | |
| spanName = 'db.query'; |
| InstrumentationBase, | ||
| InstrumentationNodeModuleDefinition, | ||
| InstrumentationNodeModuleFile, | ||
| safeExecuteInTheMiddle, |
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The import of safeExecuteInTheMiddle should be removed from '@opentelemetry/instrumentation' and imported from '@sentry/core' instead, as indicated by the usage pattern at line 394. However, checking the actual usage shows it is used correctly. If this import is not used elsewhere in the file, it should be removed.
dev-packages/node-integration-tests/suites/tracing/postgresjs/test.ts
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| spanName = sanitizedSqlQuery.trim(); | ||
| } else { | ||
| spanName = 'db.query'; | ||
| } |
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Bug: Span description uses operation prefix instead of full query
The span name logic sets spanName to db.${operation} (e.g., db.create, db.select) for recognized SQL operations, but this value becomes the span's description when serialized (as confirmed in sentrySpan.ts line 226: description: this._name). The tests in this same PR explicitly expect the span description to be the full sanitized SQL query (e.g., 'CREATE TABLE "User" (...)'), not the abbreviated db.create format. This mismatch means the detailed test expectations will fail.
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| sqlQuery | ||
| .replace(/\s+/g, ' ') | ||
| .trim() // Remove extra spaces including newlines and trim | ||
| .substring(0, 1024) // Truncate to 1024 characters | ||
| .replace(/--.*?(\r?\n|$)/g, '') // Single line comments | ||
| // Remove comments first (they may contain newlines and extra spaces) | ||
| .replace(/--.*$/gm, '') // Single line comments (multiline mode) | ||
| .replace(/\/\*[\s\S]*?\*\//g, '') // Multi-line comments |
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...any updates? |
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Thanks for making the changes. This looks good to me for now, though I'd like us to improve parameterization in a follow-up PR (see slack convo).
dev-packages/node-integration-tests/suites/tracing/postgresjs/test.ts
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Thanks! Let's fix the last lint warning and then we can merge it.
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Resolves: #17889
This PR rewrites the
postgresjsinstrumentation with a new architecture:Added ESM support via
replaceExportsMoved to main export wrapping instead of internal module patching
connection.jsandquery.jsinternal modulesConnection context is now stored directly on sql instances using
CONNECTION_CONTEXT_SYMBOLQuery.prototypefallback (CJS only)Query.prototype.handleas a fallback for pre-existing sql instancesQUERY_FROM_INSTRUMENTED_SQLmarker to prevent duplicate spansAlso,
portattribute is now stored as a number per OTEL semantic conventionscommandisn't available