@anthropic-ai/sdk/internal/decoders/jsonl.js

The official TypeScript library for the Anthropic API

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.JSONLDecoder = void 0;
const error_1 = require("../../core/error.js");
const shims_1 = require("../shims.js");
const line_1 = require("./line.js");
var JSONLDecoder = /* @__PURE__ */ (() => {
    class JSONLDecoder {
        constructor(iterator, controller, 
        // Node's fetch cancels an unread body once its response is garbage collected, so we hold a reference.
        response) {
            this.iterator = iterator;
            this.response = response;
            this.controller = controller;
        }
        async *decoder() {
            const iterator = this.iterator;
            if (!iterator) {
                throw new error_1.AnthropicError('Cannot iterate over a consumed stream.');
            }
            // Lets the iterator be collected with this generator, even if the decoder is still held.
            this.iterator = undefined;
            const lineDecoder = new line_1.LineDecoder();
            for await (const chunk of iterator) {
                for (const line of lineDecoder.decode(chunk)) {
                    yield JSON.parse(line);
                }
            }
            for (const line of lineDecoder.flush()) {
                yield JSON.parse(line);
            }
        }
        [Symbol.asyncIterator]() {
            return this.decoder();
        }
        static fromResponse(response, controller) {
            if (!response.body) {
                controller.abort();
                if (typeof globalThis.navigator !== 'undefined' &&
                    globalThis.navigator.product === 'ReactNative') {
                    throw new error_1.AnthropicError(`The default react-native fetch implementation does not support streaming. Please use expo/fetch: https://docs.expo.dev/versions/latest/sdk/expo/#expofetch-api`);
                }
                throw new error_1.AnthropicError(`Attempted to iterate over a response with no body`);
            }
            return new JSONLDecoder((0, shims_1.ReadableStreamToAsyncIterable)(response.body), controller, response);
        }
    }
    return JSONLDecoder;
})();
exports.JSONLDecoder = JSONLDecoder;
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