Incrementally building an array as a data document

[chamith-kodez]

Hello Everyone,
Can someone please let me know how to add an element to an existing array which exists as a data document (probably using HTTP PATCH) ?

Existing data document:
[
{
"id": 7,
"name": "resolution-ops-field-p1",
"targetCode": "resolution",
"scopeCode": "ops-field"
},
{
"id": 8,
"name": "resolution-client-p1",
"targetCode": "resolution",
"scopeCode": "client"
}
]

[anderseknert]

Hi there! The OPA REST API documentation covers the PATCH operation here.

[chamith-kodez]

Thanks. It does cover the Patch operation in a very basic manner. With that I cannot figure out how to keep adding new elements to an array.

…

________________________________ From: Anders Eknert ***@***.***> Sent: Monday, May 8, 2023 1:50 PM To: open-policy-agent/community ***@***.***> Cc: Chamith Siriwardena ***@***.***>; Author ***@***.***> Subject: Re: [open-policy-agent/community] Incrementally building an array as a data document (Discussion #413) Hi there! The OPA REST API documentation covers the PATCH operation here<https://www.openpolicyagent.org/docs/latest/rest-api/#patch-a-document>. — Reply to this email directly, view it on GitHub<#413 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AYZZ35DNVRWBM2JJ3MBAGQTXFCUFVANCNFSM6AAAAAAXYTFC7I>. You are receiving this because you authored the thread.Message ID: ***@***.***> CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. IMPORTANT: The information transmitted by this email is intended only for the person or entity to which it is addressed. If you have received this email by mistake, please notify the sender immediately and "do not disclose the contents to anyone or make copies thereof”

[anderseknert]

See the JSON Patch specification for that: https://jsonpatch.com/#operations

Add

{ "op": "add", "path": "/biscuits/1", "value": { "name": "Ginger Nut" } }

Adds a value to an object or inserts it into an array. In the case of an array, the value is inserted before the given index. The - character can be used instead of an index to insert at the end of an array.

[chamith-kodez]

Thanks @anderseknert a lot.
with this, I managed to get it done.
Looks like my knowledge on HTTP PATCH was minimal :)

[anderseknert]

I’m happy you got it working!