Add SQLite support for easy setup (#336)

* Modifies schema to allow SQLite as a DB driver. SQLite is preinstalled in most OSes allowing for minimal prerequisites in the installation process.

* Removes Redis dependency and replaces "real" redis instance with ioredis-mock this is not feature complete and errors are expected.

* Updates medusa new command to only ask for Postgres credentials if the starter template has database_type === "postgres" in medusa-config.js

* Small improvements to bin resolution

* Improvements to endpoint stability

packages/medusa/src/api/middlewares/error-handler.js

@@ -1,16 +1,39 @@
 import { MedusaError } from "medusa-core-utils"
 
+const QUERY_RUNNER_RELEASED = "QueryRunnerAlreadyReleasedError"
+const TRANSACTION_STARTED = "TransactionAlreadyStartedError"
+const TRANSACTION_NOT_STARTED = "TransactionNotStartedError"
+
+const API_ERROR = "api_error"
+const INVALID_REQUEST_ERROR = "invalid_request_error"
+const INVALID_STATE_ERROR = "invalid_state_error"
+
 export default () => {
   return (err, req, res, next) => {
     const logger = req.scope.resolve("logger")
-    logger.error(err.message)
+    logger.error(err)
 
-    console.error(err)
+    const errorType = err.type || err.name
+
+    const errObj = {
+      code: err.code,
+      type: err.type,
+      message: err.message,
+    }
 
     let statusCode = 500
-    switch (err.name) {
-      case MedusaError.Types.DUPLICATE_ERROR:
+    switch (errorType) {
+      case QUERY_RUNNER_RELEASED:
+      case TRANSACTION_STARTED:
+      case TRANSACTION_NOT_STARTED:
         statusCode = 409
+        errObj.code = INVALID_STATE_ERROR
+        errObj.message =
+          "The request conflicted with another request. You may retry the request with the provided Idempotency-Key."
+        break
+      case MedusaError.Types.DUPLICATE_ERROR:
+        statusCode = 402
+        errObj.code = INVALID_REQUEST_ERROR
         break
       case MedusaError.Types.NOT_ALLOWED:
       case MedusaError.Types.INVALID_DATA:
@@ -21,14 +44,12 @@ export default () => {
         break
       case MedusaError.Types.DB_ERROR:
         statusCode = 500
+        errObj.code = API_ERROR
         break
       default:
         break
     }
 
-    res.status(statusCode).json({
-      name: err.name,
-      message: err.message,
-    })
+    res.status(statusCode).json(errObj)
   }
 }