tldr/pages/common/mongoimport.md

# mongoimport

> Imports content from a JSON, CSV, or TSV file into a MongoDB database.
> More information: <https://docs.mongodb.com/database-tools/mongoimport/>.

- Import a JSON file into a specific collection:

`mongoimport --file {{path/to/file.json}} --uri {{mongodb_uri}} {{[-c|--collection]}} {{collection_name}}`

- Import a CSV file, using the first line of the file to determine field names:

`mongoimport --type {{csv}} --file {{path/to/file.csv}} {{[-d|--db]}} {{database_name}} {{[-c|--collection]}} {{collection_name}}`

- Import a JSON array, using each element as a separate document:

`mongoimport --jsonArray --file {{path/to/file.json}}`

- Import a JSON file using a specific mode and a query to match existing documents:

`mongoimport --file {{path/to/file.json}} --mode {{delete|merge|upsert}} --upsertFields "{{field1,field2,...}}"`

- Import a CSV file, reading field names from a separate CSV file and ignoring fields with empty values:

`mongoimport --type {{csv}} --file {{path/to/file.csv}} --fieldFile {{path/to/field_file.csv}} --ignoreBlanks`

- Display help:

`mongoimport --help`