Get documents by filter

[brunoocasali]

⚠️ This issue is generated, it means the examples and the namings do not necessarily correspond to the language of this repository.
Also, if you are a maintainer, please add any clarification and instructions about this issue.

Sorry if this is already wholly/partially implemented. Feel free to let me know about the state of this issue in the repo.

Related to meilisearch/integration-guides#261

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⚠️ This issue is part of the new Meilisearch v1.2 release.

New implementation

Related to:

• issue: Delete and get documents by filter meilisearch/meilisearch#3477
• spec: Specify the new fetch documents route meilisearch/specifications#234

It gives the user the possibility to use a filter expression to retrieve documents, like in search.

Implement in the Meilisearch.Document.list method an internal conditional allowing the user to query the documents with the same method but using a new filter method.

When the user calls the get documents method with a filter argument, request POST /indexes/{index_uid}/documents/fetch using a JSON body containing an int offset, int limit, String[] fields and now String filter or String[] filter.
⚠️ If the method invocation does not contain a filter it should still call the previous implementation.

Todo:

• Implement the Meilisearch.Document.list new behavior keeping the old behavior when possible.

[brunoocasali]

@BlitzBanana can you add the labels enhancement / good first issue to this issue?