When backing up mongodb, I want to back up only the collection information about the database. Is there a way?
I am asking if there is a way to back up only the colllection without data using mongodump.
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MongoDB is a schema-less database, thus there is nothing you could backup. – Wernfried Domscheit Nov 10 '22 at 07:54
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Yes I read your comment and changed the content of the question – han Nov 10 '22 at 08:13
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are you running in some sort of storage capacity problems? – Ibrahim shamma Nov 10 '22 at 08:40
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What do you mean by "collection information"? Maybe you just want to save the output of `db.getCollectionInfos()` – Wernfried Domscheit Nov 10 '22 at 09:48
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I believe I have answered your question. Can you check, unvote and accept it if it meets your requirements, thanks – dangarfield Nov 11 '22 at 22:57
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It has been noted that MongoDB is and remains schema-less, so unless you use Mongoose or another ORM, is it difficult to get the schema directly from the data.
That being said, there is a tool called mongodb-schema that can read your documents and INFER a schema from them. It creates a probability metric for each of the potential fields and also the assigned type. It may be useful if you want to retrospectively analyse the collections without resorting to a dump and manual inspection.
You can also use MongoDB Compass to analyse your schemas. This is, again, based on the sampling of your data.
I believe this is the desired output, but for more clarity in your use case, please update the question accordingly.
dangarfield
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