line / armeria

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Support JSONSchema for Thrift TText protocol #4601

Open Dogacel opened 1 year ago

Dogacel commented 1 year ago

Motivation:

Improve JSON Schema support for Thrift TText protocol to ramp up DocService.

Parent PR:

Requirements:

Note: It seems like typedefs are unresolved types in ServiceSpecification

so we first need to fix that.

For enum support, the generated schema can look like this:

    "test_enum" : {
      "type": ["string", "number"],
      "description" : "",
      "enum" : [ "ZERO", "ONE", "TWO", 0, 1, 2 ],
      "additionalProperties" : true
    },

Testing

Compared schemas for

We can compare using HBase and Cassandra but I got kinda lazy and my Thrift knowledge is very low.

Here is the current status of the schema as of 31.12.2022:

minwoox commented 1 year ago

Typedef support

I completely forgot about this. 😓 Let me handle it.

Numerated enum support

Did you menat TypedefedEnum?

Dogacel commented 1 year ago

Did you menat TypedefedEnum?

No, I thought you can give numbers as enums (e.g. 1, 2) but JSON schema currently only accepts names (string) for enums.

minwoox commented 1 year ago

Oops, I think I don't get it. 😅

you can give numbers as enums

Do you mean specifying numbers as enums when sending a request? But, couldn't we get the information of enums when creating the JSON schema regardless of the Numerated enum?

Dogacel commented 1 year ago

Oops, I think I don't get it. 😅

you can give numbers as enums

Do you mean specifying numbers as enums when sending a request? But, couldn't we get the information of enums when creating the JSON schema regardless of the Numerated enum?

Yeah, we do have more information (possible enum values are autocompleted). I just wanted to fully support existing features but if you think nobody uses numbers as enums while sending thrift requests then it should be fine.

minwoox commented 1 year ago

Ah ah, so you mean we can create the JSON schema with the information but we cannot support auto-completion when sending a request using numbers? Is that correct? 😄 Then, probably we can specify all the values we support? 🤔

{
  "enum": ["red", "amber", "green", 1, 2, 3]
}
Dogacel commented 1 year ago

Ah ah, so you mean we can create the JSON schema with the information but we cannot support auto-completion when sending a request using numbers? Is that correct? 😄 Then, probably we can specify all the values we support? 🤔

{
  "enum": ["red", "amber", "green", 1, 2, 3]
}

Updated ticket description.

minwoox commented 1 year ago

Typedef support (currently they are only object).

This will be supported by https://github.com/line/armeria/pull/4628