Determine if the decoded type is stringable, and if so just return text

Author: aaroncox

src/lib/types/string.ts

@@ -0,0 +1,64 @@
+export const stringableTypes = [
+	'string',
+	'string?',
+	'bool',
+	'bool?',
+	'asset',
+	'asset?',
+	'extended_asset',
+	'extended_asset?',
+	'bytes',
+	'bytes?',
+	'checksum160',
+	'checksum160?',
+	'checksum256',
+	'checksum256?',
+	'checksum512',
+	'checksum512?',
+	'name',
+	'name?',
+	'publickey',
+	'publickey?',
+	'signature',
+	'signature?',
+	'symbol',
+	'symbol?',
+	'symbol_code',
+	'symbol_code?',
+	'time_point',
+	'time_point?',
+	'time_point_sec',
+	'time_point_sec?',
+	'block_timestamp_type',
+	'block_timestamp_type?',
+	'int8',
+	'int8?',
+	'int16',
+	'int16?',
+	'int32',
+	'int32?',
+	'int64',
+	'int64?',
+	'int128',
+	'int128?',
+	'uint8',
+	'uint8?',
+	'uint16',
+	'uint16?',
+	'uint32',
+	'uint32?',
+	'uint64',
+	'uint64?',
+	'uint128',
+	'uint128?',
+	'varint',
+	'varint?',
+	'varuint',
+	'varuint?',
+	'float32',
+	'float32?',
+	'float64',
+	'float64?',
+	'float128',
+	'float128?'
+];

src/routes/[network]/api/readonly/[contract]/[action]/[[data]]/+server.ts

@@ -1,8 +1,9 @@
-import { json } from '@sveltejs/kit';
+import { json, text } from '@sveltejs/kit';
 
 import { ContractKit } from '@wharfkit/contract';
 import { Name, Serializer, Transaction } from '@wharfkit/antelope';
 import type { RequestEvent } from './$types';
+import { stringableTypes } from '$lib/types/string';
 
 export async function GET({ locals: { network }, params }: RequestEvent) {
 	const contractKit = new ContractKit({
@@ -33,12 +34,15 @@ export async function GET({ locals: { network }, params }: RequestEvent) {
 		throw new Error(`Return type for ${name} not defined in the ABI.`);
 	}
 
-	return json(
-		Serializer.decode({
-			data: hexData,
-			type: returnType.result_type,
-			abi: contract.abi
-		}),
-		{ status: 200 }
-	);
+	const decoded = Serializer.decode({
+		data: hexData,
+		type: returnType.result_type,
+		abi: contract.abi
+	});
+
+	if (stringableTypes.includes(returnType.result_type)) {
+		return text(String(decoded), { status: 200 });
+	} else {
+		return json(decoded, { status: 200 });
+	}
 }