Hooks to develop

`<RocProvider>` and `useRoc()`

Returns an instance of Roc, initialized with the API URL and database configured at build time.

`<RocUserProvider>` and `useRocUser()`

Fetches information about the authenticated user using:
- https://mydb.cheminfo.org/auth/session
- https://mydb.cheminfo.org/db/eln/user/_me/groups

`useSample(uuid)`

Fetches the given sample using:

`<MainSampleProvider uuid={}>` and `useMainSample()`

Internally calls useSample and permits to access the main sample from anywhere in the children

`useMainSampleId()`

Tries to get the main sample id from the iframe bridge, or from the query string.

`useRocQuery('viewName', options)`

Query a CouchDB view. For example useRocQuery('sample_toc') would query https://mydb.cheminfo.org/db/eln/_query/sample_toc

Options examples:

Actions to implement

Get an attachment URL by name
Save a sample
useSampleToc ?
handle changes, to know if sample is still unsaved
- dirty field
- function to update in-memory copy -> update((draft) => { draft.x = y })
- function to revert in-memory changes
detect server-side change of sample (polling revision id with HEAD ?)
re-fetch

Reference: https://github.com/cheminfo-js/visualizer-helper/blob/master/eln/Sample.js

Handle error state

All requests
No connection
Not found
No access (unauthenticated for example)

Handle loading state