diff --git a/lib/compute-schema.js b/lib/compute-schema.js
new file mode 100644
index 00000000..e072c3b9
--- /dev/null
+++ b/lib/compute-schema.js
@@ -0,0 +1,12 @@
+const { asyncLocalStorage } = require('./async-storage')
+
+const computeSchema = (req, res, next) => {
+  const store = new Map()
+  store.set('schema', 'public')
+  store.set('defaultSchema', 'ERROR_SCHEMA')
+  asyncLocalStorage.run(store, () => {
+    next()
+  })
+}
+
+module.exports = computeSchema
diff --git a/lib/routes.js b/lib/routes.js
index 49095f15..9b062a22 100644
--- a/lib/routes.js
+++ b/lib/routes.js
@@ -8,6 +8,8 @@ const nocache = require('nocache')
 const authorize = require('./middlewares/authorize')
 const errorHandler = require('./middlewares/errorHandler')
 const filterOldRequests = require('./middlewares/filterOldRequests')
+const computeSchema = require('./compute-schema')
+const dbErrorCodes = require('./db-error-codes')
 const logger = require('./logger')
 const options = require('./options')
 const findOperatorId = require('./middlewares/operatorId')
@@ -56,6 +58,7 @@ app.use('/', pairingRoutes)
 
 app.use(findOperatorId)
 app.use(populateDeviceId)
+app.use(computeSchema)
 if (!devMode) app.use(authorize)
 app.use(configRequiredRoutes, populateSettings)
 app.use(filterOldRequests)