From 1503c242d858469d78772ae48ce662153160ba3a Mon Sep 17 00:00:00 2001
From: Daniel Haarhoff <daniel@rknt.de>
Date: Wed, 26 Jun 2024 10:50:28 +0100
Subject: [PATCH] Make OpenAlex field information available #13

---
 src/data/requests.json.ts | 2 ++
 src/lib/OpenAlex.ts       | 8 ++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 src/lib/OpenAlex.ts

diff --git a/src/data/requests.json.ts b/src/data/requests.json.ts
index 3188166..198356a 100644
--- a/src/data/requests.json.ts
+++ b/src/data/requests.json.ts
@@ -3,12 +3,14 @@ import { NodeTerminal } from '@effect/platform-node'
 import { Schema } from '@effect/schema'
 import { Effect } from 'effect'
 import * as LanguageCode from '../lib/LanguageCode.js'
+import { FieldIdSchema } from '../lib/OpenAlex.js'
 import * as Temporal from '../lib/Temporal.js'
 
 const Requests = Schema.Array(
   Schema.Struct({
     timestamp: Temporal.InstantFromStringSchema,
     language: Schema.optional(LanguageCode.LanguageCodeSchema, { nullable: true }),
+    fields: Schema.Array(FieldIdSchema),
   }),
 )
 
diff --git a/src/lib/OpenAlex.ts b/src/lib/OpenAlex.ts
new file mode 100644
index 0000000..ef338fe
--- /dev/null
+++ b/src/lib/OpenAlex.ts
@@ -0,0 +1,8 @@
+import { Schema } from '@effect/schema'
+import { Brand } from 'effect'
+
+type FieldId = string & Brand.Brand<'OpenAlexFieldId'>
+
+const FieldId = Brand.nominal<FieldId>()
+
+export const FieldIdSchema = Schema.String.pipe(Schema.fromBrand(FieldId))