fix(mongo): allow using pool.min/max options in mongo driver

Closes #2228
mikro-orm · Sep 23, 2021 · 9223055 · 9223055
1 parent bbd0eb4
commit 9223055
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diff --git a/packages/mongodb/src/MongoConnection.ts b/packages/mongodb/src/MongoConnection.ts
@@ -52,13 +52,22 @@ export class MongoConnection extends Connection {
 
   getConnectionOptions(): MongoClientOptions & ConnectionConfig {
     const ret: MongoClientOptions = { useNewUrlParser: true, useUnifiedTopology: true };
+    const pool = this.config.get('pool')!;
     const user = this.config.get('user');
     const password = this.config.get('password') as string;
 
     if (user && password) {
       ret.auth = { user, password };
     }
 
+    if (pool.min) {
+      ret.minPoolSize = ret.minSize = pool.min;
+    }
+
+    if (pool.max) {
+      ret.maxPoolSize = ret.poolSize = pool.max;
+    }
+
     return Utils.merge(ret, this.config.get('driverOptions'));
   }
 

diff --git a/tests/bootstrap.ts b/tests/bootstrap.ts
@@ -43,6 +43,7 @@ export async function initORMMongo() {
     populateAfterFlush: true,
     validate: true,
     filters: { allowedFooBars: { cond: args => ({ id: { $in: args.allowed } }), entity: ['FooBar'], default: false } },
+    pool: { min: 1, max: 3 },
   });
 
   ensureIndexes = false;