// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details. import { AnthropicError } from "../../../error.mjs"; import { APIResource } from "../../../core/resource.mjs"; import { MODEL_NONSTREAMING_TOKENS } from "../../../internal/constants.mjs"; import { buildHeaders } from "../../../internal/headers.mjs"; import { stainlessHelperHeader } from "../../../lib/stainless-helper-header.mjs"; import { parseBetaMessage, } from "../../../lib/beta-parser.mjs"; import { BetaMessageStream } from "../../../lib/BetaMessageStream.mjs"; import { BetaToolRunner, } from "../../../lib/tools/BetaToolRunner.mjs"; import { ToolError } from "../../../lib/tools/ToolError.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', }; const MODELS_TO_WARN_WITH_THINKING_ENABLED = ['claude-opus-4-6']; export class Messages extends APIResource { constructor() { super(...arguments); this.batches = new BatchesAPI.Batches(this._client); } create(params, options) { // Transform deprecated output_format to output_config.format const modifiedParams = transformOutputFormat(params); const { betas, ...body } = modifiedParams; 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.`); } if (body.model in MODELS_TO_WARN_WITH_THINKING_ENABLED && body.thinking && body.thinking.type === 'enabled') { console.warn(`Using Claude with ${body.model} and 'thinking.type=enabled' is deprecated. Use 'thinking.type=adaptive' instead which results in better model performance in our testing: https://platform.claude.com/docs/en/build-with-claude/adaptive-thinking`); } 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); } // Collect helper info from tools and messages const helperHeader = stainlessHelperHeader(body.tools, body.messages); return this._client.post('/v1/messages?beta=true', { body, timeout: timeout ?? 600000, ...options, headers: buildHeaders([ { ...(betas?.toString() != null ? { 'anthropic-beta': betas?.toString() } : undefined) }, helperHeader, options?.headers, ]), stream: modifiedParams.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-2025-12-15'].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-4-6', * }); * ``` */ countTokens(params, options) { // Transform deprecated output_format to output_config.format const modifiedParams = transformOutputFormat(params); const { betas, ...body } = modifiedParams; 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); } } /** * Transform deprecated output_format to output_config.format * Returns a modified copy of the params without mutating the original */ function transformOutputFormat(params) { if (!params.output_format) { return params; } if (params.output_config?.format) { throw new AnthropicError('Both output_format and output_config.format were provided. ' + 'Please use only output_config.format (output_format is deprecated).'); } const { output_format, ...rest } = params; return { ...rest, output_config: { ...params.output_config, format: output_format, }, }; } export { BetaToolRunner } from "../../../lib/tools/BetaToolRunner.mjs"; export { ToolError } from "../../../lib/tools/ToolError.mjs"; Messages.Batches = Batches; Messages.BetaToolRunner = BetaToolRunner; Messages.ToolError = ToolError; //# sourceMappingURL=messages.mjs.map