text/csv bulk insert endpoint does not support booleans

[samcfinan]

Describe the bug
The endpoint to bulk insert documents fails to parse boolean properties when uploading a CSV. The type annotation is appended to the key name and the value is a string.

To Reproduce
Steps to reproduce the behavior:

1. POST /indexes/:indexUID/documents?primaryKey=id with the following body and a Content-Type of text/csv:

"id:number","active:boolean"
899767,true

3. Fetch documents via GET /indexes/:indexUID/documents
4. Note that the active key will be parsed as active:boolean with the value as a string.

Expected behavior
Expecting Meilisearch to use the boolean type annotation when creating the document.

Meilisearch version: [e.g. v1.0.2]

Thanks everyone! Meilisearch is an excellent product.

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Edit by the meilisearch team

Fixed by #3576
The associated spec is here; meilisearch/specifications#228

@meilisearch/docs-team Currently, we’re not super clear on the types we can specify in a csv document; https://docs.meilisearch.com/learn/core_concepts/documents.html#csv
With this addition, I guess it could be the occasion to list all the available types (string, number, boolean, null can’t be specified, but will happens if a field is empty)