[OPIK-218] Allow null custom fields

[thiagohora]

Details

Allow null custom fields

Issues

OPIK-218

Test

1 * Sending client request on thread main
1 > PUT http://localhost:64258/v1/private/datasets/items
1 > Accept: application/json
1 > Authorization: [redacted]
1 > Comet-Workspace: fcad5ab8-81dc-4afb-bea0-5e31a779de45
1 > Content-Type: application/json
{"dataset_name":"Dxy3ajznes","items":[{"id":"019295bf-eb3a-7039-8f70-081dcb7b1b2e","input":{"a5cfoWjH9m":"v6adRGluPX","haJhM7bxmU":"M2ZVpQcurR","DKgvnHVoMc":"VnEPhyQVME","TCD8si3J1w":"oGYB5aRNO0","V9k48d4K9I":"XL2yuu9nd0"},"expected_output":{"p8GpolcCVj":"zwFA5ruYEv","fBXysf5a2L":"rF2goFpFuF","ed8xBpjs7l":"xhbKDNcjqS","z6kkjaAEVt":"KA51rxsgSF","60WfjGubtj":"Iye6DHKe68"},"metadata":{"EdkEnQQNjr":"UHCElyCBQx","5xuTVl8udL":"jII7zJGDtM","7MH4KeamGd":"yeX242v2oO","HhR6jysGuf":"Y5nwVNpHfm","y0o0hHNq4L":"CSmkAGTXWw"},"trace_id":"019295bf-eb33-7a27-9af7-c88e0ef4998a","source":"trace","data":{"test":null},"created_at":"2024-10-16T14:33:55.770756Z","last_updated_at":"2024-10-16T14:33:55.770757Z"}]}

}----------------------------------------------------------

Add test to ensure the support works

{"id":"019295bf-eb3a-7039-8f70-081dcb7b1b2e","input":{"a5cfoWjH9m":"v6adRGluPX","haJhM7bxmU":"M2ZVpQcurR","DKgvnHVoMc":"VnEPhyQVME","TCD8si3J1w":"oGYB5aRNO0","V9k48d4K9I":"XL2yuu9nd0"},"expected_output":{"p8GpolcCVj":"zwFA5ruYEv","fBXysf5a2L":"rF2goFpFuF","ed8xBpjs7l":"xhbKDNcjqS","z6kkjaAEVt":"KA51rxsgSF","60WfjGubtj":"Iye6DHKe68"},"metadata":{"EdkEnQQNjr":"UHCElyCBQx","5xuTVl8udL":"jII7zJGDtM","7MH4KeamGd":"yeX242v2oO","HhR6jysGuf":"Y5nwVNpHfm","y0o0hHNq4L":"CSmkAGTXWw"},"trace_id":"019295bf-eb33-7a27-9af7-c88e0ef4998a","source":"trace","data":{"input":{"a5cfoWjH9m":"v6adRGluPX","haJhM7bxmU":"M2ZVpQcurR","DKgvnHVoMc":"VnEPhyQVME","TCD8si3J1w":"oGYB5aRNO0","V9k48d4K9I":"XL2yuu9nd0"},"metadata":{"EdkEnQQNjr":"UHCElyCBQx","5xuTVl8udL":"jII7zJGDtM","7MH4KeamGd":"yeX242v2oO","HhR6jysGuf":"Y5nwVNpHfm","y0o0hHNq4L":"CSmkAGTXWw"},"test":null,"expected_output":{"p8GpolcCVj":"zwFA5ruYEv","fBXysf5a2L":"rF2goFpFuF","ed8xBpjs7l":"xhbKDNcjqS","z6kkjaAEVt":"KA51rxsgSF","60WfjGubtj":"Iye6DHKe68"}},"created_at":"2024-10-16T14:33:56.649824801Z","last_updated_at":"2024-10-16T14:33:56.649122093Z","created_by":"3734cabb-034d-422c-a3f4-0cd771be45bf","last_updated_by":"3734cabb-034d-422c-a3f4-0cd771be45bf"}

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