I have a collection that should have a unique value in addition the id, like this
book: { type: String, unique: true },
```When I check on the db, `book` is not indexed, so I tried indexing it to ensure there is no value duplication of `book` but I get an error, even on unique values not in the database.
MongoServerError: E11000 duplicate key error collection: test.library index: book_1 dup key: { book: null }
Hello @Caleb_Mucheru
Can you please review your code:
In case you can not fix the issue by checking the above points, please provide more details.
Best, Michael
I am writing to the collection I want to only when I remove an index on book. But this makes us have a two documents on a single submit, first with some fields, which some are empty and the second one which has all fields as expected.
Hello @Caleb_Mucheru
I am not sure if I understand correct:
E11000 duplicate key error?Can you please share your code?
Best, Michael
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