validate json schema for openai api

src/codegen/export-openai-schema.ts

@@ -0,0 +1,45 @@
+import YAML from "yaml";
+import fs from "fs";
+import path from "path";
+import { openapiSchemaToJsonSchema } from "@openapi-contrib/openapi-schema-to-json-schema";
+import assert from "assert";
+
+const OPENAPI_URL =
+  "https://raw.githubusercontent.com/openai/openai-openapi/0c432eb66fd0c758fd8b9bd69db41c1096e5f4db/openapi.yaml";
+
+const convertOpenApiToJsonSchema = async (url: string) => {
+  // Fetch the openapi document
+  const response = await fetch(url);
+  const openApiYaml = await response.text();
+
+  // Parse the yaml document
+  const openApiDocument = YAML.parse(openApiYaml) as unknown;
+
+  // Convert the openapi schema to json schema
+  const jsonSchema = openapiSchemaToJsonSchema(openApiDocument);
+
+  const modelProperty = jsonSchema.components.schemas.CreateChatCompletionRequest.properties.model;
+
+  assert(modelProperty.oneOf.length === 2, "Expected model to have oneOf length of 2");
+
+  // We need to do a bit of surgery here since the Monaco editor doesn't like
+  // the fact that the schema says `model` can be either a string or an enum,
+  // and displays a warning in the editor. Let's stick with just an enum for
+  // now and drop the string option.
+  modelProperty.type = "string";
+  modelProperty.enum = modelProperty.oneOf[1].enum;
+  modelProperty.oneOf = undefined;
+
+  // Get the directory of the current script
+  const currentDirectory = path.dirname(import.meta.url).replace("file://", "");
+
+  // Write the JSON schema to a file in the current directory
+  fs.writeFileSync(
+    path.join(currentDirectory, "openai.schema.json"),
+    JSON.stringify(jsonSchema, null, 2)
+  );
+};
+
+convertOpenApiToJsonSchema(OPENAPI_URL)
+  .then(() => console.log("JSON schema has been written successfully."))
+  .catch((err) => console.error(err));