/**
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { extractJson } from '../extract';
import type { Formatter } from './types';
export const jsonFormatter: Formatter<unknown, unknown> = {
name: 'json',
config: {
format: 'json',
contentType: 'application/json',
constrained: true,
defaultInstructions: false,
},
handler: (schema) => {
let instructions: string | undefined;
if (schema) {
instructions = `Output should be in JSON format and conform to the following schema:
\`\`\`
${JSON.stringify(schema)}
\`\`\`
`;
}
return {
parseChunk: (chunk) => {
return extractJson(chunk.accumulatedText);
},
parseMessage: (message) => {
return extractJson(message.text);
},
instructions,
};
},
};