@anthropic-ai/sdk
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The official TypeScript library for the Anthropic API
117 lines • 4.91 kB
JavaScript
// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
import { APIResource } from "../../../core/resource.mjs";
import { MODEL_NONSTREAMING_TOKENS } from "../../../internal/constants.mjs";
import { buildHeaders } from "../../../internal/headers.mjs";
import { parseBetaMessage, } from "../../../lib/beta-parser.mjs";
import { BetaMessageStream } from "../../../lib/BetaMessageStream.mjs";
import { BetaToolRunner, } from "../../../lib/tools/BetaToolRunner.mjs";
import * as BatchesAPI from "./batches.mjs";
import { Batches, } from "./batches.mjs";
const DEPRECATED_MODELS = {
'claude-1.3': 'November 6th, 2024',
'claude-1.3-100k': 'November 6th, 2024',
'claude-instant-1.1': 'November 6th, 2024',
'claude-instant-1.1-100k': 'November 6th, 2024',
'claude-instant-1.2': 'November 6th, 2024',
'claude-3-sonnet-20240229': 'July 21st, 2025',
'claude-3-opus-20240229': 'January 5th, 2026',
'claude-2.1': 'July 21st, 2025',
'claude-2.0': 'July 21st, 2025',
'claude-3-7-sonnet-latest': 'February 19th, 2026',
'claude-3-7-sonnet-20250219': 'February 19th, 2026',
};
export class Messages extends APIResource {
constructor() {
super(...arguments);
this.batches = new BatchesAPI.Batches(this._client);
}
create(params, options) {
const { betas, ...body } = params;
if (body.model in DEPRECATED_MODELS) {
console.warn(`The model '${body.model}' is deprecated and will reach end-of-life on ${DEPRECATED_MODELS[body.model]}\nPlease migrate to a newer model. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.`);
}
let timeout = this._client._options.timeout;
if (!body.stream && timeout == null) {
const maxNonstreamingTokens = MODEL_NONSTREAMING_TOKENS[body.model] ?? undefined;
timeout = this._client.calculateNonstreamingTimeout(body.max_tokens, maxNonstreamingTokens);
}
return this._client.post('/v1/messages?beta=true', {
body,
timeout: timeout ?? 600000,
...options,
headers: buildHeaders([
{ ...(betas?.toString() != null ? { 'anthropic-beta': betas?.toString() } : undefined) },
options?.headers,
]),
stream: params.stream ?? false,
});
}
/**
* Send a structured list of input messages with text and/or image content, along with an expected `output_format` and
* the response will be automatically parsed and available in the `parsed_output` property of the message.
*
* @example
* ```ts
* const message = await client.beta.messages.parse({
* model: 'claude-3-5-sonnet-20241022',
* max_tokens: 1024,
* messages: [{ role: 'user', content: 'What is 2+2?' }],
* output_format: zodOutputFormat(z.object({ answer: z.number() }), 'math'),
* });
*
* console.log(message.parsed_output?.answer); // 4
* ```
*/
parse(params, options) {
options = {
...options,
headers: buildHeaders([
{ 'anthropic-beta': [...(params.betas ?? []), 'structured-outputs-2025-11-13'].toString() },
options?.headers,
]),
};
return this.create(params, options).then((message) => parseBetaMessage(message, params, { logger: this._client.logger ?? console }));
}
/**
* Create a Message stream
*/
stream(body, options) {
return BetaMessageStream.createMessage(this, body, options);
}
/**
* Count the number of tokens in a Message.
*
* The Token Count API can be used to count the number of tokens in a Message,
* including tools, images, and documents, without creating it.
*
* Learn more about token counting in our
* [user guide](https://docs.claude.com/en/docs/build-with-claude/token-counting)
*
* @example
* ```ts
* const betaMessageTokensCount =
* await client.beta.messages.countTokens({
* messages: [{ content: 'string', role: 'user' }],
* model: 'claude-opus-4-5-20251101',
* });
* ```
*/
countTokens(params, options) {
const { betas, ...body } = params;
return this._client.post('/v1/messages/count_tokens?beta=true', {
body,
...options,
headers: buildHeaders([
{ 'anthropic-beta': [...(betas ?? []), 'token-counting-2024-11-01'].toString() },
options?.headers,
]),
});
}
toolRunner(body, options) {
return new BetaToolRunner(this._client, body, options);
}
}
export { BetaToolRunner } from "../../../lib/tools/BetaToolRunner.mjs";
Messages.Batches = Batches;
Messages.BetaToolRunner = BetaToolRunner;
//# sourceMappingURL=messages.mjs.map