@openai/agents-core/dist/sandbox/events.mjs

The OpenAI Agents SDK is a lightweight yet powerful framework for building multi-agent workflows.

const sandboxEventSinks = new Set();
export function addSandboxEventSink(sink) {
    sandboxEventSinks.add(sink);
    return () => {
        sandboxEventSinks.delete(sink);
    };
}
export function clearSandboxEventSinks() {
    sandboxEventSinks.clear();
}
export async function emitSandboxEvent(event) {
    if (sandboxEventSinks.size === 0) {
        return;
    }
    await Promise.allSettled([...sandboxEventSinks].map(async (sink) => {
        await sink(event);
    }));
}
/**
 * Create a sink that writes one serialized sandbox event per JSONL line.
 */
export function createSandboxJsonlEventSink(writer) {
    return async (event) => {
        await writer(`${JSON.stringify(event)}\n`);
    };
}
/**
 * Create a sink that POSTs each sandbox event as JSON to an HTTP endpoint.
 */
export function createSandboxHttpEventSink(options) {
    const headers = { ...options.headers };
    return async (event) => {
        const fetch = options.fetch ?? readGlobalFetch();
        if (!fetch) {
            throw new Error('No fetch implementation is available for the sandbox HTTP event sink.');
        }
        const response = await fetch(options.endpoint, {
            method: 'POST',
            headers: {
                'content-type': 'application/json',
                ...headers,
            },
            body: JSON.stringify(event),
        });
        if (!response.ok) {
            const detail = await readHttpErrorDetail(response);
            throw new Error(`Sandbox event HTTP sink failed with status ${response.status}${detail}`);
        }
    };
}
/**
 * Create a sink that delivers each event to multiple child sinks.
 */
export function createChainedSandboxEventSink(...sinks) {
    return async (event) => {
        await Promise.allSettled(sinks.map(async (sink) => {
            await sink(event);
        }));
    };
}
export function serializeSandboxEventError(error) {
    if (error instanceof Error) {
        const code = readErrorCode(error);
        const retryable = readErrorRetryability(error);
        return {
            name: error.name,
            message: error.message,
            ...(code ? { code } : {}),
            ...(retryable !== undefined ? { retryable } : {}),
        };
    }
    return {
        message: String(error),
    };
}
function readErrorCode(error) {
    const code = error.code;
    return typeof code === 'string' ? code : undefined;
}
function readErrorRetryability(error) {
    const retryable = error.retryable;
    return typeof retryable === 'boolean' || retryable === null
        ? retryable
        : undefined;
}
function readGlobalFetch() {
    return globalThis.fetch;
}
async function readHttpErrorDetail(response) {
    if (typeof response.text !== 'function') {
        return response.statusText ? `: ${response.statusText}` : '';
    }
    try {
        const text = await response.text();
        if (text) {
            return `: ${text}`;
        }
    }
    catch {
        // Ignore response body read failures and use the status text below.
    }
    return response.statusText ? `: ${response.statusText}` : '';
}
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