[BUG]: Express integration - v5.29.0+ reports incompatible version found when using Express v4 #5092
Description
Tracer Version(s)
5.29.0
Node.js Version(s)
22.11.0
Bug Report
When upgrading our dd-trace module, when we update to v5.29.0 or higher, we get the following output when debug mode is enabled.
$ DD_TRACE_DEBUG=true DD_TRACE_LOG_FILE=ddtrace_logs.log NODE_ENV=production node --import ./src/node-instrumentation.mjs src/server/index.mjs
Found incompatible integration version: express@4.21.2
I know that 5.29.0 is the same version that released support for express v5, but I would assume that express v4 is still supported based on the README (as it's based on node version).
Reproduction Code
// ./src/server/node-instrumentation.mjs
import tracer from 'dd-trace';
tracer.init({
hostname: process.env.DD_HOST,
service: 'app',
debug: process.env.DATADOG_DEBUG_ENABLED === 'true',
});
tracer.use('express')// ./src/server/index.mjs
import express from 'express';
const app = express()
const port = 3000
app.get('/', (req, res) => {
res.send('Hello World!')
})
app.listen(port, () => {
console.log(`Example app listening on port ${port}`)
})Start command
$ DD_TRACE_DEBUG=true DD_TRACE_LOG_FILE=ddtrace_logs.log NODE_ENV=production node --import ./src/node-instrumentation.mjs src/server/index.mjs
Error Logs
N/A
Tracer Config
tracer.init({
hostname: process.env.DD_HOST,
service: 'app',
debug: process.env.DATADOG_DEBUG_ENABLED === 'true',
});Operating System
Darwin XXX 24.2.0 Darwin Kernel Version 24.2.0
Bundling
No Bundling