# `mix lightning.adaptors.import`
[🔗](https://github.com/OpenFn/lightning/blob/main/lib/mix/tasks/lightning.adaptors.import.ex#L1)

Populate the `adaptors` table from a JSON file, without reaching npm.

The file is a JSON array of adaptor records in the shape
`Lightning.Adaptors.Catalogue.upsert_adaptor/1` accepts, the same shape
`mix lightning.adaptors.snapshot` writes.

## Usage

    mix lightning.adaptors.import --path snapshot.json
    mix lightning.adaptors.import --path snapshot.json --source local
    mix lightning.adaptors.import --path snapshot.json --replace

`--source` defaults to `npm`. `--replace` deletes every existing row for
that source first, so the file becomes the source's entire contents
rather than a merge.

## In a release

There is no Mix (or this task) in a release image. Seed from a
snapshot before starting the app by running the equivalent through
`bin/lightning eval` instead:

    bin/lightning eval 'Lightning.Release.seed_adaptors("/path/to/snapshot.json", replace: true)'

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*Consult [api-reference.md](api-reference.md) for complete listing*