| 1 | diff --git a/dist/index.d.mts b/dist/index.d.mts |
| 2 | index d067e49a..d0dbf5b2 100644 |
| 3 | --- a/dist/index.d.mts |
| 4 | +++ b/dist/index.d.mts |
| 5 | @@ -110,6 +110,31 @@ declare function convertModelMessages(modelMessages: ModelMessage[]): BaseMessag |
| 6 | * ``` |
| 7 | */ |
| 8 | declare function toUIMessageStream<TState = unknown>(stream: AsyncIterable<AIMessageChunk> | ReadableStream, callbacks?: StreamCallbacks<TState>): ReadableStream<UIMessageChunk>; |
| 9 | +declare function baseMessagesToUIMessages(messages: BaseMessage[]): UIMessage[]; |
| 10 | +interface InterruptActionRequest { |
| 11 | + name: string; |
| 12 | + args?: Record<string, unknown>; |
| 13 | + arguments?: Record<string, unknown>; |
| 14 | + id?: string; |
| 15 | +} |
| 16 | +interface InterruptValue { |
| 17 | + actionRequests?: InterruptActionRequest[]; |
| 18 | + action_requests?: InterruptActionRequest[]; |
| 19 | +} |
| 20 | +interface PregelInterrupt { |
| 21 | + value?: InterruptValue | unknown; |
| 22 | +} |
| 23 | +interface PregelTask { |
| 24 | + interrupts?: PregelInterrupt[]; |
| 25 | + [key: string]: unknown; |
| 26 | +} |
| 27 | +interface StateSnapshotLike { |
| 28 | + values: { |
| 29 | + messages?: BaseMessage[]; |
| 30 | + } & Record<string, unknown>; |
| 31 | + tasks?: PregelTask[]; |
| 32 | +} |
| 33 | +declare function stateSnapshotToUIMessages(snapshot: StateSnapshotLike): UIMessage[]; |
| 34 | |
| 35 | /** |
| 36 | * Options for configuring a LangSmith deployment transport. |
| 37 | @@ -156,4 +181,4 @@ declare class LangSmithDeploymentTransport<UI_MESSAGE extends UIMessage> impleme |
| 38 | } & ChatRequestOptions): Promise<ReadableStream<UIMessageChunk> | null>; |
| 39 | } |
| 40 | |
| 41 | -export { LangSmithDeploymentTransport, type LangSmithDeploymentTransportOptions, type StreamCallbacks, convertModelMessages, toBaseMessages, toUIMessageStream }; |
| 42 | +export { LangSmithDeploymentTransport, type LangSmithDeploymentTransportOptions, type StateSnapshotLike, type StreamCallbacks, baseMessagesToUIMessages, convertModelMessages, stateSnapshotToUIMessages, toBaseMessages, toUIMessageStream }; |
| 43 | diff --git a/dist/index.d.ts b/dist/index.d.ts |
| 44 | index d067e49a..d0dbf5b2 100644 |
| 45 | --- a/dist/index.d.ts |
| 46 | +++ b/dist/index.d.ts |
| 47 | @@ -110,6 +110,31 @@ declare function convertModelMessages(modelMessages: ModelMessage[]): BaseMessag |
| 48 | * ``` |
| 49 | */ |
| 50 | declare function toUIMessageStream<TState = unknown>(stream: AsyncIterable<AIMessageChunk> | ReadableStream, callbacks?: StreamCallbacks<TState>): ReadableStream<UIMessageChunk>; |
| 51 | +declare function baseMessagesToUIMessages(messages: BaseMessage[]): UIMessage[]; |
| 52 | +interface InterruptActionRequest { |
| 53 | + name: string; |
| 54 | + args?: Record<string, unknown>; |
| 55 | + arguments?: Record<string, unknown>; |
| 56 | + id?: string; |
| 57 | +} |
| 58 | +interface InterruptValue { |
| 59 | + actionRequests?: InterruptActionRequest[]; |
| 60 | + action_requests?: InterruptActionRequest[]; |
| 61 | +} |
| 62 | +interface PregelInterrupt { |
| 63 | + value?: InterruptValue | unknown; |
| 64 | +} |
| 65 | +interface PregelTask { |
| 66 | + interrupts?: PregelInterrupt[]; |
| 67 | + [key: string]: unknown; |
| 68 | +} |
| 69 | +interface StateSnapshotLike { |
| 70 | + values: { |
| 71 | + messages?: BaseMessage[]; |
| 72 | + } & Record<string, unknown>; |
| 73 | + tasks?: PregelTask[]; |
| 74 | +} |
| 75 | +declare function stateSnapshotToUIMessages(snapshot: StateSnapshotLike): UIMessage[]; |
| 76 | |
| 77 | /** |
| 78 | * Options for configuring a LangSmith deployment transport. |
| 79 | @@ -156,4 +181,4 @@ declare class LangSmithDeploymentTransport<UI_MESSAGE extends UIMessage> impleme |
| 80 | } & ChatRequestOptions): Promise<ReadableStream<UIMessageChunk> | null>; |
| 81 | } |
| 82 | |
| 83 | -export { LangSmithDeploymentTransport, type LangSmithDeploymentTransportOptions, type StreamCallbacks, convertModelMessages, toBaseMessages, toUIMessageStream }; |
| 84 | +export { LangSmithDeploymentTransport, type LangSmithDeploymentTransportOptions, type StateSnapshotLike, type StreamCallbacks, baseMessagesToUIMessages, convertModelMessages, stateSnapshotToUIMessages, toBaseMessages, toUIMessageStream }; |
| 85 | diff --git a/dist/index.js b/dist/index.js |
| 86 | index 1430e7fb..02350d54 100644 |
| 87 | --- a/dist/index.js |
| 88 | +++ b/dist/index.js |
| 89 | @@ -21,9 +21,11 @@ var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: tru |
| 90 | var src_exports = {}; |
| 91 | __export(src_exports, { |
| 92 | LangSmithDeploymentTransport: () => LangSmithDeploymentTransport, |
| 93 | + baseMessagesToUIMessages: () => baseMessagesToUIMessages, |
| 94 | convertModelMessages: () => convertModelMessages, |
| 95 | + stateSnapshotToUIMessages: () => stateSnapshotToUIMessages, |
| 96 | toBaseMessages: () => toBaseMessages, |
| 97 | - toUIMessageStream: () => toUIMessageStream |
| 98 | + toUIMessageStream: () => toUIMessageStream |
| 99 | }); |
| 100 | module.exports = __toCommonJS(src_exports); |
| 101 | |
| 102 | @@ -1071,6 +1073,236 @@ function toUIMessageStream(stream, callbacks) { |
| 103 | } |
| 104 | }); |
| 105 | } |
| 106 | +function getMessageType(msg) { |
| 107 | + if (msg == null || typeof msg !== "object") { |
| 108 | + return void 0; |
| 109 | + } |
| 110 | + const msgObj = msg; |
| 111 | + if (typeof msgObj._getType === "function") { |
| 112 | + return msgObj._getType(); |
| 113 | + } |
| 114 | + if (typeof msgObj.type === "string" && msgObj.type !== "constructor") { |
| 115 | + return msgObj.type; |
| 116 | + } |
| 117 | + if (msgObj.type === "constructor" && Array.isArray(msgObj.id)) { |
| 118 | + const ids = msgObj.id; |
| 119 | + if (ids.includes("HumanMessage") || ids.includes("HumanMessageChunk")) { |
| 120 | + return "human"; |
| 121 | + } |
| 122 | + if (ids.includes("AIMessage") || ids.includes("AIMessageChunk")) { |
| 123 | + return "ai"; |
| 124 | + } |
| 125 | + if (ids.includes("SystemMessage") || ids.includes("SystemMessageChunk")) { |
| 126 | + return "system"; |
| 127 | + } |
| 128 | + if (ids.includes("ToolMessage") || ids.includes("ToolMessageChunk")) { |
| 129 | + return "tool"; |
| 130 | + } |
| 131 | + } |
| 132 | + return void 0; |
| 133 | +} |
| 134 | +function getToolCallId(msg) { |
| 135 | + if (msg == null || typeof msg !== "object") { |
| 136 | + return void 0; |
| 137 | + } |
| 138 | + const msgObj = msg; |
| 139 | + const dataSource = msgObj.type === "constructor" && msgObj.kwargs && typeof msgObj.kwargs === "object" ? msgObj.kwargs : msgObj; |
| 140 | + return typeof dataSource.tool_call_id === "string" ? dataSource.tool_call_id : void 0; |
| 141 | +} |
| 142 | +function getToolCalls(msg) { |
| 143 | + if (msg == null || typeof msg !== "object") { |
| 144 | + return []; |
| 145 | + } |
| 146 | + const msgObj = msg; |
| 147 | + const dataSource = msgObj.type === "constructor" && msgObj.kwargs && typeof msgObj.kwargs === "object" ? msgObj.kwargs : msgObj; |
| 148 | + if (Array.isArray(dataSource.tool_calls)) { |
| 149 | + return dataSource.tool_calls; |
| 150 | + } |
| 151 | + if (dataSource.additional_kwargs && typeof dataSource.additional_kwargs === "object") { |
| 152 | + const additionalKwargs = dataSource.additional_kwargs; |
| 153 | + if (Array.isArray(additionalKwargs.tool_calls)) { |
| 154 | + return additionalKwargs.tool_calls.map((toolCall, idx) => { |
| 155 | + let args; |
| 156 | + try { |
| 157 | + args = toolCall.function && toolCall.function.arguments ? JSON.parse(toolCall.function.arguments) : {}; |
| 158 | + } catch { |
| 159 | + args = {}; |
| 160 | + } |
| 161 | + return { |
| 162 | + id: toolCall.id ?? `call_${idx}`, |
| 163 | + name: toolCall.function && toolCall.function.name ? toolCall.function.name : "unknown", |
| 164 | + args |
| 165 | + }; |
| 166 | + }); |
| 167 | + } |
| 168 | + } |
| 169 | + return []; |
| 170 | +} |
| 171 | +function getAdditionalKwargs(msg) { |
| 172 | + if (msg == null || typeof msg !== "object") { |
| 173 | + return void 0; |
| 174 | + } |
| 175 | + const msgObj = msg; |
| 176 | + const dataSource = msgObj.type === "constructor" && msgObj.kwargs && typeof msgObj.kwargs === "object" ? msgObj.kwargs : msgObj; |
| 177 | + return dataSource.additional_kwargs; |
| 178 | +} |
| 179 | +function baseMessagesToUIMessages(messages) { |
| 180 | + const result = []; |
| 181 | + let currentAssistant = null; |
| 182 | + for (const msg of messages) { |
| 183 | + const msgType = getMessageType(msg); |
| 184 | + const msgId = getMessageId(msg) ?? (0, import_ai.generateId)(); |
| 185 | + switch (msgType) { |
| 186 | + case "human": { |
| 187 | + currentAssistant = null; |
| 188 | + const text = getMessageText(msg); |
| 189 | + result.push({ |
| 190 | + id: msgId, |
| 191 | + role: "user", |
| 192 | + parts: [{ type: "text", text }] |
| 193 | + }); |
| 194 | + break; |
| 195 | + } |
| 196 | + case "system": { |
| 197 | + currentAssistant = null; |
| 198 | + const text = getMessageText(msg); |
| 199 | + result.push({ |
| 200 | + id: msgId, |
| 201 | + role: "system", |
| 202 | + parts: [{ type: "text", text }] |
| 203 | + }); |
| 204 | + break; |
| 205 | + } |
| 206 | + case "ai": { |
| 207 | + const parts = []; |
| 208 | + const reasoning = extractReasoningFromContentBlocks(msg) || extractReasoningFromValuesMessage(msg); |
| 209 | + if (reasoning) { |
| 210 | + parts.push({ type: "reasoning", text: reasoning, state: "done" }); |
| 211 | + } |
| 212 | + const text = getMessageText(msg); |
| 213 | + if (text) { |
| 214 | + parts.push({ type: "text", text }); |
| 215 | + } |
| 216 | + const additionalKwargs = getAdditionalKwargs(msg); |
| 217 | + const imageOutputs = extractImageOutputs(additionalKwargs); |
| 218 | + for (const imageOutput of imageOutputs) { |
| 219 | + if (imageOutput.result) { |
| 220 | + const mediaType = `image/${imageOutput.output_format ?? "png"}`; |
| 221 | + parts.push({ |
| 222 | + type: "file", |
| 223 | + mediaType, |
| 224 | + url: `data:${mediaType};base64,${imageOutput.result}` |
| 225 | + }); |
| 226 | + } |
| 227 | + } |
| 228 | + const toolCalls = getToolCalls(msg); |
| 229 | + for (const toolCall of toolCalls) { |
| 230 | + parts.push({ |
| 231 | + type: "dynamic-tool", |
| 232 | + toolCallId: toolCall.id, |
| 233 | + toolName: toolCall.name, |
| 234 | + state: "input-available", |
| 235 | + input: toolCall.args |
| 236 | + }); |
| 237 | + } |
| 238 | + const assistantMessage = { |
| 239 | + id: msgId, |
| 240 | + role: "assistant", |
| 241 | + parts |
| 242 | + }; |
| 243 | + result.push(assistantMessage); |
| 244 | + currentAssistant = assistantMessage; |
| 245 | + break; |
| 246 | + } |
| 247 | + case "tool": { |
| 248 | + const toolCallId = getToolCallId(msg); |
| 249 | + if (toolCallId && currentAssistant) { |
| 250 | + const toolPart = currentAssistant.parts.find((part) => part.type === "dynamic-tool" && part.toolCallId === toolCallId); |
| 251 | + if (toolPart) { |
| 252 | + const idx = currentAssistant.parts.indexOf(toolPart); |
| 253 | + const content = getMessageText(msg); |
| 254 | + currentAssistant.parts[idx] = { |
| 255 | + type: "dynamic-tool", |
| 256 | + toolCallId: toolPart.toolCallId, |
| 257 | + toolName: toolPart.toolName, |
| 258 | + state: "output-available", |
| 259 | + input: toolPart.input, |
| 260 | + output: content |
| 261 | + }; |
| 262 | + } |
| 263 | + } |
| 264 | + break; |
| 265 | + } |
| 266 | + } |
| 267 | + } |
| 268 | + return result; |
| 269 | +} |
| 270 | +function extractInterruptParts(tasks) { |
| 271 | + if (!Array.isArray(tasks)) { |
| 272 | + return []; |
| 273 | + } |
| 274 | + const parts = []; |
| 275 | + for (const task of tasks) { |
| 276 | + if (!Array.isArray(task.interrupts)) { |
| 277 | + continue; |
| 278 | + } |
| 279 | + for (const interrupt of task.interrupts) { |
| 280 | + if (!interrupt.value || typeof interrupt.value !== "object") { |
| 281 | + continue; |
| 282 | + } |
| 283 | + const interruptValue = interrupt.value; |
| 284 | + const actionRequests = interruptValue.actionRequests ?? interruptValue.action_requests; |
| 285 | + if (!Array.isArray(actionRequests)) { |
| 286 | + continue; |
| 287 | + } |
| 288 | + for (const request of actionRequests) { |
| 289 | + parts.push({ |
| 290 | + type: "dynamic-tool", |
| 291 | + toolCallId: request.id ?? (0, import_ai.generateId)(), |
| 292 | + toolName: request.name, |
| 293 | + state: "input-available", |
| 294 | + input: request.args ?? request.arguments ?? {} |
| 295 | + }); |
| 296 | + } |
| 297 | + } |
| 298 | + } |
| 299 | + return parts; |
| 300 | +} |
| 301 | +function stateSnapshotToUIMessages(snapshot) { |
| 302 | + var _a; |
| 303 | + const messages = (_a = snapshot.values) == null ? void 0 : _a.messages; |
| 304 | + if (!Array.isArray(messages)) { |
| 305 | + return []; |
| 306 | + } |
| 307 | + const uiMessages = baseMessagesToUIMessages(messages); |
| 308 | + const interruptParts = extractInterruptParts(snapshot.tasks); |
| 309 | + if (interruptParts.length > 0) { |
| 310 | + let lastAssistant = uiMessages.findLast((message) => message.role === "assistant"); |
| 311 | + if (!lastAssistant) { |
| 312 | + lastAssistant = { |
| 313 | + id: (0, import_ai.generateId)(), |
| 314 | + role: "assistant", |
| 315 | + parts: [] |
| 316 | + }; |
| 317 | + uiMessages.push(lastAssistant); |
| 318 | + } |
| 319 | + const existingToolCallIds = new Set(); |
| 320 | + const existingToolParts = new Set(); |
| 321 | + for (const part of lastAssistant.parts) { |
| 322 | + if (part.type === "dynamic-tool") { |
| 323 | + existingToolCallIds.add(part.toolCallId); |
| 324 | + existingToolParts.add(`${part.toolName}:${JSON.stringify(part.input)}`); |
| 325 | + } |
| 326 | + } |
| 327 | + for (const interruptPart of interruptParts) { |
| 328 | + const toolCallKey = `${interruptPart.toolName}:${JSON.stringify(interruptPart.input)}`; |
| 329 | + if (!existingToolCallIds.has(interruptPart.toolCallId) && !existingToolParts.has(toolCallKey)) { |
| 330 | + lastAssistant.parts.push(interruptPart); |
| 331 | + } |
| 332 | + } |
| 333 | + } |
| 334 | + return uiMessages; |
| 335 | +} |
| 336 | |
| 337 | // src/transport.ts |
| 338 | var import_remote = require("@langchain/langgraph/remote"); |
| 339 | @@ -1099,8 +1331,10 @@ var LangSmithDeploymentTransport = class { |
| 340 | // Annotate the CommonJS export names for ESM import in node: |
| 341 | 0 && (module.exports = { |
| 342 | LangSmithDeploymentTransport, |
| 343 | + baseMessagesToUIMessages, |
| 344 | convertModelMessages, |
| 345 | + stateSnapshotToUIMessages, |
| 346 | toBaseMessages, |
| 347 | - toUIMessageStream |
| 348 | + toUIMessageStream |
| 349 | }); |
| 350 | //# sourceMappingURL=index.js.map |
| 351 | \ No newline at end of file |
| 352 | diff --git a/dist/index.mjs b/dist/index.mjs |
| 353 | index 94f5fa8b..751e20d2 100644 |
| 354 | --- a/dist/index.mjs |
| 355 | +++ b/dist/index.mjs |
| 356 | @@ -3,7 +3,8 @@ import { |
| 357 | SystemMessage |
| 358 | } from "@langchain/core/messages"; |
| 359 | import { |
| 360 | - convertToModelMessages |
| 361 | + convertToModelMessages, |
| 362 | + generateId |
| 363 | } from "ai"; |
| 364 | |
| 365 | // src/utils.ts |
| 366 | @@ -1051,6 +1052,236 @@ function toUIMessageStream(stream, callbacks) { |
| 367 | } |
| 368 | }); |
| 369 | } |
| 370 | +function getMessageType(msg) { |
| 371 | + if (msg == null || typeof msg !== "object") { |
| 372 | + return void 0; |
| 373 | + } |
| 374 | + const msgObj = msg; |
| 375 | + if (typeof msgObj._getType === "function") { |
| 376 | + return msgObj._getType(); |
| 377 | + } |
| 378 | + if (typeof msgObj.type === "string" && msgObj.type !== "constructor") { |
| 379 | + return msgObj.type; |
| 380 | + } |
| 381 | + if (msgObj.type === "constructor" && Array.isArray(msgObj.id)) { |
| 382 | + const ids = msgObj.id; |
| 383 | + if (ids.includes("HumanMessage") || ids.includes("HumanMessageChunk")) { |
| 384 | + return "human"; |
| 385 | + } |
| 386 | + if (ids.includes("AIMessage") || ids.includes("AIMessageChunk")) { |
| 387 | + return "ai"; |
| 388 | + } |
| 389 | + if (ids.includes("SystemMessage") || ids.includes("SystemMessageChunk")) { |
| 390 | + return "system"; |
| 391 | + } |
| 392 | + if (ids.includes("ToolMessage") || ids.includes("ToolMessageChunk")) { |
| 393 | + return "tool"; |
| 394 | + } |
| 395 | + } |
| 396 | + return void 0; |
| 397 | +} |
| 398 | +function getToolCallId(msg) { |
| 399 | + if (msg == null || typeof msg !== "object") { |
| 400 | + return void 0; |
| 401 | + } |
| 402 | + const msgObj = msg; |
| 403 | + const dataSource = msgObj.type === "constructor" && msgObj.kwargs && typeof msgObj.kwargs === "object" ? msgObj.kwargs : msgObj; |
| 404 | + return typeof dataSource.tool_call_id === "string" ? dataSource.tool_call_id : void 0; |
| 405 | +} |
| 406 | +function getToolCalls(msg) { |
| 407 | + if (msg == null || typeof msg !== "object") { |
| 408 | + return []; |
| 409 | + } |
| 410 | + const msgObj = msg; |
| 411 | + const dataSource = msgObj.type === "constructor" && msgObj.kwargs && typeof msgObj.kwargs === "object" ? msgObj.kwargs : msgObj; |
| 412 | + if (Array.isArray(dataSource.tool_calls)) { |
| 413 | + return dataSource.tool_calls; |
| 414 | + } |
| 415 | + if (dataSource.additional_kwargs && typeof dataSource.additional_kwargs === "object") { |
| 416 | + const additionalKwargs = dataSource.additional_kwargs; |
| 417 | + if (Array.isArray(additionalKwargs.tool_calls)) { |
| 418 | + return additionalKwargs.tool_calls.map((toolCall, idx) => { |
| 419 | + let args; |
| 420 | + try { |
| 421 | + args = toolCall.function && toolCall.function.arguments ? JSON.parse(toolCall.function.arguments) : {}; |
| 422 | + } catch { |
| 423 | + args = {}; |
| 424 | + } |
| 425 | + return { |
| 426 | + id: toolCall.id ?? `call_${idx}`, |
| 427 | + name: toolCall.function && toolCall.function.name ? toolCall.function.name : "unknown", |
| 428 | + args |
| 429 | + }; |
| 430 | + }); |
| 431 | + } |
| 432 | + } |
| 433 | + return []; |
| 434 | +} |
| 435 | +function getAdditionalKwargs(msg) { |
| 436 | + if (msg == null || typeof msg !== "object") { |
| 437 | + return void 0; |
| 438 | + } |
| 439 | + const msgObj = msg; |
| 440 | + const dataSource = msgObj.type === "constructor" && msgObj.kwargs && typeof msgObj.kwargs === "object" ? msgObj.kwargs : msgObj; |
| 441 | + return dataSource.additional_kwargs; |
| 442 | +} |
| 443 | +function baseMessagesToUIMessages(messages) { |
| 444 | + const result = []; |
| 445 | + let currentAssistant = null; |
| 446 | + for (const msg of messages) { |
| 447 | + const msgType = getMessageType(msg); |
| 448 | + const msgId = getMessageId(msg) ?? generateId(); |
| 449 | + switch (msgType) { |
| 450 | + case "human": { |
| 451 | + currentAssistant = null; |
| 452 | + const text = getMessageText(msg); |
| 453 | + result.push({ |
| 454 | + id: msgId, |
| 455 | + role: "user", |
| 456 | + parts: [{ type: "text", text }] |
| 457 | + }); |
| 458 | + break; |
| 459 | + } |
| 460 | + case "system": { |
| 461 | + currentAssistant = null; |
| 462 | + const text = getMessageText(msg); |
| 463 | + result.push({ |
| 464 | + id: msgId, |
| 465 | + role: "system", |
| 466 | + parts: [{ type: "text", text }] |
| 467 | + }); |
| 468 | + break; |
| 469 | + } |
| 470 | + case "ai": { |
| 471 | + const parts = []; |
| 472 | + const reasoning = extractReasoningFromContentBlocks(msg) || extractReasoningFromValuesMessage(msg); |
| 473 | + if (reasoning) { |
| 474 | + parts.push({ type: "reasoning", text: reasoning, state: "done" }); |
| 475 | + } |
| 476 | + const text = getMessageText(msg); |
| 477 | + if (text) { |
| 478 | + parts.push({ type: "text", text }); |
| 479 | + } |
| 480 | + const additionalKwargs = getAdditionalKwargs(msg); |
| 481 | + const imageOutputs = extractImageOutputs(additionalKwargs); |
| 482 | + for (const imageOutput of imageOutputs) { |
| 483 | + if (imageOutput.result) { |
| 484 | + const mediaType = `image/${imageOutput.output_format ?? "png"}`; |
| 485 | + parts.push({ |
| 486 | + type: "file", |
| 487 | + mediaType, |
| 488 | + url: `data:${mediaType};base64,${imageOutput.result}` |
| 489 | + }); |
| 490 | + } |
| 491 | + } |
| 492 | + const toolCalls = getToolCalls(msg); |
| 493 | + for (const toolCall of toolCalls) { |
| 494 | + parts.push({ |
| 495 | + type: "dynamic-tool", |
| 496 | + toolCallId: toolCall.id, |
| 497 | + toolName: toolCall.name, |
| 498 | + state: "input-available", |
| 499 | + input: toolCall.args |
| 500 | + }); |
| 501 | + } |
| 502 | + const assistantMessage = { |
| 503 | + id: msgId, |
| 504 | + role: "assistant", |
| 505 | + parts |
| 506 | + }; |
| 507 | + result.push(assistantMessage); |
| 508 | + currentAssistant = assistantMessage; |
| 509 | + break; |
| 510 | + } |
| 511 | + case "tool": { |
| 512 | + const toolCallId = getToolCallId(msg); |
| 513 | + if (toolCallId && currentAssistant) { |
| 514 | + const toolPart = currentAssistant.parts.find((part) => part.type === "dynamic-tool" && part.toolCallId === toolCallId); |
| 515 | + if (toolPart) { |
| 516 | + const idx = currentAssistant.parts.indexOf(toolPart); |
| 517 | + const content = getMessageText(msg); |
| 518 | + currentAssistant.parts[idx] = { |
| 519 | + type: "dynamic-tool", |
| 520 | + toolCallId: toolPart.toolCallId, |
| 521 | + toolName: toolPart.toolName, |
| 522 | + state: "output-available", |
| 523 | + input: toolPart.input, |
| 524 | + output: content |
| 525 | + }; |
| 526 | + } |
| 527 | + } |
| 528 | + break; |
| 529 | + } |
| 530 | + } |
| 531 | + } |
| 532 | + return result; |
| 533 | +} |
| 534 | +function extractInterruptParts(tasks) { |
| 535 | + if (!Array.isArray(tasks)) { |
| 536 | + return []; |
| 537 | + } |
| 538 | + const parts = []; |
| 539 | + for (const task of tasks) { |
| 540 | + if (!Array.isArray(task.interrupts)) { |
| 541 | + continue; |
| 542 | + } |
| 543 | + for (const interrupt of task.interrupts) { |
| 544 | + if (!interrupt.value || typeof interrupt.value !== "object") { |
| 545 | + continue; |
| 546 | + } |
| 547 | + const interruptValue = interrupt.value; |
| 548 | + const actionRequests = interruptValue.actionRequests ?? interruptValue.action_requests; |
| 549 | + if (!Array.isArray(actionRequests)) { |
| 550 | + continue; |
| 551 | + } |
| 552 | + for (const request of actionRequests) { |
| 553 | + parts.push({ |
| 554 | + type: "dynamic-tool", |
| 555 | + toolCallId: request.id ?? generateId(), |
| 556 | + toolName: request.name, |
| 557 | + state: "input-available", |
| 558 | + input: request.args ?? request.arguments ?? {} |
| 559 | + }); |
| 560 | + } |
| 561 | + } |
| 562 | + } |
| 563 | + return parts; |
| 564 | +} |
| 565 | +function stateSnapshotToUIMessages(snapshot) { |
| 566 | + var _a; |
| 567 | + const messages = (_a = snapshot.values) == null ? void 0 : _a.messages; |
| 568 | + if (!Array.isArray(messages)) { |
| 569 | + return []; |
| 570 | + } |
| 571 | + const uiMessages = baseMessagesToUIMessages(messages); |
| 572 | + const interruptParts = extractInterruptParts(snapshot.tasks); |
| 573 | + if (interruptParts.length > 0) { |
| 574 | + let lastAssistant = uiMessages.findLast((message) => message.role === "assistant"); |
| 575 | + if (!lastAssistant) { |
| 576 | + lastAssistant = { |
| 577 | + id: generateId(), |
| 578 | + role: "assistant", |
| 579 | + parts: [] |
| 580 | + }; |
| 581 | + uiMessages.push(lastAssistant); |
| 582 | + } |
| 583 | + const existingToolCallIds = new Set(); |
| 584 | + const existingToolParts = new Set(); |
| 585 | + for (const part of lastAssistant.parts) { |
| 586 | + if (part.type === "dynamic-tool") { |
| 587 | + existingToolCallIds.add(part.toolCallId); |
| 588 | + existingToolParts.add(`${part.toolName}:${JSON.stringify(part.input)}`); |
| 589 | + } |
| 590 | + } |
| 591 | + for (const interruptPart of interruptParts) { |
| 592 | + const toolCallKey = `${interruptPart.toolName}:${JSON.stringify(interruptPart.input)}`; |
| 593 | + if (!existingToolCallIds.has(interruptPart.toolCallId) && !existingToolParts.has(toolCallKey)) { |
| 594 | + lastAssistant.parts.push(interruptPart); |
| 595 | + } |
| 596 | + } |
| 597 | + } |
| 598 | + return uiMessages; |
| 599 | +} |
| 600 | |
| 601 | // src/transport.ts |
| 602 | import { |
| 603 | @@ -1080,8 +1311,10 @@ var LangSmithDeploymentTransport = class { |
| 604 | }; |
| 605 | export { |
| 606 | LangSmithDeploymentTransport, |
| 607 | + baseMessagesToUIMessages, |
| 608 | convertModelMessages, |
| 609 | + stateSnapshotToUIMessages, |
| 610 | toBaseMessages, |
| 611 | - toUIMessageStream |
| 612 | + toUIMessageStream |
| 613 | }; |
| 614 | //# sourceMappingURL=index.mjs.map |
| 615 | \ No newline at end of file |
| 616 | diff --git a/src/adapter.ts b/src/adapter.ts |
| 617 | index 0994b4b8..033361d2 100644 |
| 618 | --- a/src/adapter.ts |
| 619 | +++ b/src/adapter.ts |
| 620 | @@ -7,6 +7,7 @@ import { |
| 621 | type UIMessage, |
| 622 | type UIMessageChunk, |
| 623 | convertToModelMessages, |
| 624 | + generateId, |
| 625 | type ModelMessage, |
| 626 | } from 'ai'; |
| 627 | import { |
| 628 | @@ -18,6 +19,10 @@ import { |
| 629 | parseLangGraphEvent, |
| 630 | isToolResultPart, |
| 631 | extractReasoningFromContentBlocks, |
| 632 | + getMessageText, |
| 633 | + getMessageId, |
| 634 | + extractReasoningFromValuesMessage, |
| 635 | + extractImageOutputs, |
| 636 | } from './utils'; |
| 637 | import { type LangGraphEventState } from './types'; |
| 638 | import { type StreamCallbacks } from './stream-callbacks'; |
| 639 | @@ -571,3 +576,385 @@ export function toUIMessageStream<TState = unknown>( |
| 640 | }, |
| 641 | }); |
| 642 | } |
| 643 | + |
| 644 | +function getMessageType(msg: unknown): string | undefined { |
| 645 | + if (msg == null || typeof msg !== 'object') { |
| 646 | + return undefined; |
| 647 | + } |
| 648 | + |
| 649 | + const msgObj = msg as Record<string, unknown>; |
| 650 | + |
| 651 | + if (typeof msgObj._getType === 'function') { |
| 652 | + return (msgObj._getType as () => string)(); |
| 653 | + } |
| 654 | + |
| 655 | + if (typeof msgObj.type === 'string' && msgObj.type !== 'constructor') { |
| 656 | + return msgObj.type; |
| 657 | + } |
| 658 | + |
| 659 | + if (msgObj.type === 'constructor' && Array.isArray(msgObj.id)) { |
| 660 | + const ids = msgObj.id as string[]; |
| 661 | + |
| 662 | + if (ids.includes('HumanMessage') || ids.includes('HumanMessageChunk')) { |
| 663 | + return 'human'; |
| 664 | + } |
| 665 | + |
| 666 | + if (ids.includes('AIMessage') || ids.includes('AIMessageChunk')) { |
| 667 | + return 'ai'; |
| 668 | + } |
| 669 | + |
| 670 | + if (ids.includes('SystemMessage') || ids.includes('SystemMessageChunk')) { |
| 671 | + return 'system'; |
| 672 | + } |
| 673 | + |
| 674 | + if (ids.includes('ToolMessage') || ids.includes('ToolMessageChunk')) { |
| 675 | + return 'tool'; |
| 676 | + } |
| 677 | + } |
| 678 | + |
| 679 | + return undefined; |
| 680 | +} |
| 681 | + |
| 682 | +function getToolCallId(msg: unknown): string | undefined { |
| 683 | + if (msg == null || typeof msg !== 'object') { |
| 684 | + return undefined; |
| 685 | + } |
| 686 | + |
| 687 | + const msgObj = msg as Record<string, unknown>; |
| 688 | + const dataSource = |
| 689 | + msgObj.type === 'constructor' && |
| 690 | + msgObj.kwargs && |
| 691 | + typeof msgObj.kwargs === 'object' |
| 692 | + ? (msgObj.kwargs as Record<string, unknown>) |
| 693 | + : msgObj; |
| 694 | + |
| 695 | + return typeof dataSource.tool_call_id === 'string' |
| 696 | + ? dataSource.tool_call_id |
| 697 | + : undefined; |
| 698 | +} |
| 699 | + |
| 700 | +function getToolCalls( |
| 701 | + msg: unknown, |
| 702 | +): Array<{ id: string; name: string; args: Record<string, unknown> }> { |
| 703 | + if (msg == null || typeof msg !== 'object') { |
| 704 | + return []; |
| 705 | + } |
| 706 | + |
| 707 | + const msgObj = msg as Record<string, unknown>; |
| 708 | + const dataSource = |
| 709 | + msgObj.type === 'constructor' && |
| 710 | + msgObj.kwargs && |
| 711 | + typeof msgObj.kwargs === 'object' |
| 712 | + ? (msgObj.kwargs as Record<string, unknown>) |
| 713 | + : msgObj; |
| 714 | + |
| 715 | + if (Array.isArray(dataSource.tool_calls)) { |
| 716 | + return dataSource.tool_calls as Array<{ |
| 717 | + id: string; |
| 718 | + name: string; |
| 719 | + args: Record<string, unknown>; |
| 720 | + }>; |
| 721 | + } |
| 722 | + |
| 723 | + if ( |
| 724 | + dataSource.additional_kwargs && |
| 725 | + typeof dataSource.additional_kwargs === 'object' |
| 726 | + ) { |
| 727 | + const additionalKwargs = dataSource.additional_kwargs as Record< |
| 728 | + string, |
| 729 | + unknown |
| 730 | + >; |
| 731 | + |
| 732 | + if (Array.isArray(additionalKwargs.tool_calls)) { |
| 733 | + return ( |
| 734 | + additionalKwargs.tool_calls as Array<{ |
| 735 | + id?: string; |
| 736 | + function?: { name?: string; arguments?: string }; |
| 737 | + }> |
| 738 | + ).map((toolCall, idx) => { |
| 739 | + let args: Record<string, unknown>; |
| 740 | + |
| 741 | + try { |
| 742 | + args = toolCall.function?.arguments |
| 743 | + ? (JSON.parse(toolCall.function.arguments) as Record< |
| 744 | + string, |
| 745 | + unknown |
| 746 | + >) |
| 747 | + : {}; |
| 748 | + } catch { |
| 749 | + args = {}; |
| 750 | + } |
| 751 | + |
| 752 | + return { |
| 753 | + id: toolCall.id ?? `call_${idx}`, |
| 754 | + name: toolCall.function?.name ?? 'unknown', |
| 755 | + args, |
| 756 | + }; |
| 757 | + }); |
| 758 | + } |
| 759 | + } |
| 760 | + |
| 761 | + return []; |
| 762 | +} |
| 763 | + |
| 764 | +function getAdditionalKwargs( |
| 765 | + msg: unknown, |
| 766 | +): Record<string, unknown> | undefined { |
| 767 | + if (msg == null || typeof msg !== 'object') { |
| 768 | + return undefined; |
| 769 | + } |
| 770 | + |
| 771 | + const msgObj = msg as Record<string, unknown>; |
| 772 | + const dataSource = |
| 773 | + msgObj.type === 'constructor' && |
| 774 | + msgObj.kwargs && |
| 775 | + typeof msgObj.kwargs === 'object' |
| 776 | + ? (msgObj.kwargs as Record<string, unknown>) |
| 777 | + : msgObj; |
| 778 | + |
| 779 | + return dataSource.additional_kwargs as Record<string, unknown> | undefined; |
| 780 | +} |
| 781 | + |
| 782 | +export function baseMessagesToUIMessages(messages: BaseMessage[]): UIMessage[] { |
| 783 | + const result: UIMessage[] = []; |
| 784 | + let currentAssistant: UIMessage | null = null; |
| 785 | + |
| 786 | + for (const msg of messages) { |
| 787 | + const msgType = getMessageType(msg); |
| 788 | + const msgId = getMessageId(msg) ?? generateId(); |
| 789 | + |
| 790 | + switch (msgType) { |
| 791 | + case 'human': { |
| 792 | + currentAssistant = null; |
| 793 | + const text = getMessageText(msg); |
| 794 | + |
| 795 | + result.push({ |
| 796 | + id: msgId, |
| 797 | + role: 'user', |
| 798 | + parts: [{ type: 'text', text }], |
| 799 | + }); |
| 800 | + break; |
| 801 | + } |
| 802 | + |
| 803 | + case 'system': { |
| 804 | + currentAssistant = null; |
| 805 | + const text = getMessageText(msg); |
| 806 | + |
| 807 | + result.push({ |
| 808 | + id: msgId, |
| 809 | + role: 'system', |
| 810 | + parts: [{ type: 'text', text }], |
| 811 | + }); |
| 812 | + break; |
| 813 | + } |
| 814 | + |
| 815 | + case 'ai': { |
| 816 | + const parts: UIMessage['parts'] = []; |
| 817 | + |
| 818 | + const reasoning = |
| 819 | + extractReasoningFromContentBlocks(msg) || |
| 820 | + extractReasoningFromValuesMessage(msg); |
| 821 | + if (reasoning) { |
| 822 | + parts.push({ type: 'reasoning', text: reasoning, state: 'done' }); |
| 823 | + } |
| 824 | + |
| 825 | + const text = getMessageText(msg); |
| 826 | + if (text) { |
| 827 | + parts.push({ type: 'text', text }); |
| 828 | + } |
| 829 | + |
| 830 | + const additionalKwargs = getAdditionalKwargs(msg); |
| 831 | + const imageOutputs = extractImageOutputs(additionalKwargs); |
| 832 | + for (const imageOutput of imageOutputs) { |
| 833 | + if (imageOutput.result) { |
| 834 | + const mediaType = `image/${imageOutput.output_format ?? 'png'}`; |
| 835 | + parts.push({ |
| 836 | + type: 'file', |
| 837 | + mediaType, |
| 838 | + url: `data:${mediaType};base64,${imageOutput.result}`, |
| 839 | + }); |
| 840 | + } |
| 841 | + } |
| 842 | + |
| 843 | + const toolCalls = getToolCalls(msg); |
| 844 | + for (const toolCall of toolCalls) { |
| 845 | + parts.push({ |
| 846 | + type: 'dynamic-tool', |
| 847 | + toolCallId: toolCall.id, |
| 848 | + toolName: toolCall.name, |
| 849 | + state: 'input-available', |
| 850 | + input: toolCall.args, |
| 851 | + }); |
| 852 | + } |
| 853 | + |
| 854 | + const assistantMessage: UIMessage = { |
| 855 | + id: msgId, |
| 856 | + role: 'assistant', |
| 857 | + parts, |
| 858 | + }; |
| 859 | + |
| 860 | + result.push(assistantMessage); |
| 861 | + currentAssistant = assistantMessage; |
| 862 | + break; |
| 863 | + } |
| 864 | + |
| 865 | + case 'tool': { |
| 866 | + const toolCallId = getToolCallId(msg); |
| 867 | + |
| 868 | + if (toolCallId && currentAssistant) { |
| 869 | + const toolPart = currentAssistant.parts.find( |
| 870 | + ( |
| 871 | + part, |
| 872 | + ): part is Extract< |
| 873 | + UIMessage['parts'][number], |
| 874 | + { type: 'dynamic-tool' } |
| 875 | + > => part.type === 'dynamic-tool' && part.toolCallId === toolCallId, |
| 876 | + ); |
| 877 | + |
| 878 | + if (toolPart) { |
| 879 | + const idx = currentAssistant.parts.indexOf(toolPart); |
| 880 | + const content = getMessageText(msg); |
| 881 | + |
| 882 | + currentAssistant.parts[idx] = { |
| 883 | + type: 'dynamic-tool', |
| 884 | + toolCallId: toolPart.toolCallId, |
| 885 | + toolName: toolPart.toolName, |
| 886 | + state: 'output-available', |
| 887 | + input: toolPart.input, |
| 888 | + output: content, |
| 889 | + }; |
| 890 | + } |
| 891 | + } |
| 892 | + |
| 893 | + break; |
| 894 | + } |
| 895 | + } |
| 896 | + } |
| 897 | + |
| 898 | + return result; |
| 899 | +} |
| 900 | + |
| 901 | +interface InterruptActionRequest { |
| 902 | + name: string; |
| 903 | + args?: Record<string, unknown>; |
| 904 | + arguments?: Record<string, unknown>; |
| 905 | + id?: string; |
| 906 | +} |
| 907 | + |
| 908 | +interface InterruptValue { |
| 909 | + actionRequests?: InterruptActionRequest[]; |
| 910 | + action_requests?: InterruptActionRequest[]; |
| 911 | +} |
| 912 | + |
| 913 | +interface PregelInterrupt { |
| 914 | + value?: InterruptValue | unknown; |
| 915 | +} |
| 916 | + |
| 917 | +interface PregelTask { |
| 918 | + interrupts?: PregelInterrupt[]; |
| 919 | + [key: string]: unknown; |
| 920 | +} |
| 921 | + |
| 922 | +interface StateSnapshotLike { |
| 923 | + values: { messages?: BaseMessage[] } & Record<string, unknown>; |
| 924 | + tasks?: PregelTask[]; |
| 925 | +} |
| 926 | + |
| 927 | +function extractInterruptParts(tasks?: PregelTask[]): Array<{ |
| 928 | + type: 'dynamic-tool'; |
| 929 | + toolCallId: string; |
| 930 | + toolName: string; |
| 931 | + state: 'input-available'; |
| 932 | + input: Record<string, unknown>; |
| 933 | +}> { |
| 934 | + if (!Array.isArray(tasks)) { |
| 935 | + return []; |
| 936 | + } |
| 937 | + |
| 938 | + const parts: Array<{ |
| 939 | + type: 'dynamic-tool'; |
| 940 | + toolCallId: string; |
| 941 | + toolName: string; |
| 942 | + state: 'input-available'; |
| 943 | + input: Record<string, unknown>; |
| 944 | + }> = []; |
| 945 | + |
| 946 | + for (const task of tasks) { |
| 947 | + if (!Array.isArray(task.interrupts)) { |
| 948 | + continue; |
| 949 | + } |
| 950 | + |
| 951 | + for (const interrupt of task.interrupts) { |
| 952 | + if (!interrupt.value || typeof interrupt.value !== 'object') { |
| 953 | + continue; |
| 954 | + } |
| 955 | + |
| 956 | + const interruptValue = interrupt.value as InterruptValue; |
| 957 | + const actionRequests = |
| 958 | + interruptValue.actionRequests ?? interruptValue.action_requests; |
| 959 | + |
| 960 | + if (!Array.isArray(actionRequests)) { |
| 961 | + continue; |
| 962 | + } |
| 963 | + |
| 964 | + for (const request of actionRequests) { |
| 965 | + parts.push({ |
| 966 | + type: 'dynamic-tool', |
| 967 | + toolCallId: request.id ?? generateId(), |
| 968 | + toolName: request.name, |
| 969 | + state: 'input-available', |
| 970 | + input: request.args ?? request.arguments ?? {}, |
| 971 | + }); |
| 972 | + } |
| 973 | + } |
| 974 | + } |
| 975 | + |
| 976 | + return parts; |
| 977 | +} |
| 978 | + |
| 979 | +export function stateSnapshotToUIMessages( |
| 980 | + snapshot: StateSnapshotLike, |
| 981 | +): UIMessage[] { |
| 982 | + const messages = snapshot.values?.messages; |
| 983 | + if (!Array.isArray(messages)) { |
| 984 | + return []; |
| 985 | + } |
| 986 | + |
| 987 | + const uiMessages = baseMessagesToUIMessages(messages); |
| 988 | + const interruptParts = extractInterruptParts(snapshot.tasks); |
| 989 | + |
| 990 | + if (interruptParts.length > 0) { |
| 991 | + let lastAssistant = uiMessages.findLast(message => message.role === 'assistant'); |
| 992 | + |
| 993 | + if (!lastAssistant) { |
| 994 | + lastAssistant = { |
| 995 | + id: generateId(), |
| 996 | + role: 'assistant', |
| 997 | + parts: [], |
| 998 | + }; |
| 999 | + uiMessages.push(lastAssistant); |
| 1000 | + } |
| 1001 | + |
| 1002 | + const existingToolCallIds = new Set<string>(); |
| 1003 | + const existingToolParts = new Set<string>(); |
| 1004 | + |
| 1005 | + for (const part of lastAssistant.parts) { |
| 1006 | + if (part.type === 'dynamic-tool') { |
| 1007 | + existingToolCallIds.add(part.toolCallId); |
| 1008 | + existingToolParts.add(`${part.toolName}:${JSON.stringify(part.input)}`); |
| 1009 | + } |
| 1010 | + } |
| 1011 | + |
| 1012 | + for (const interruptPart of interruptParts) { |
| 1013 | + const toolCallKey = `${interruptPart.toolName}:${JSON.stringify(interruptPart.input)}`; |
| 1014 | + if ( |
| 1015 | + !existingToolCallIds.has(interruptPart.toolCallId) && |
| 1016 | + !existingToolParts.has(toolCallKey) |
| 1017 | + ) { |
| 1018 | + lastAssistant.parts.push(interruptPart); |
| 1019 | + } |
| 1020 | + } |
| 1021 | + } |
| 1022 | + |
| 1023 | + return uiMessages; |
| 1024 | +} |
| 1025 | diff --git a/src/index.ts b/src/index.ts |
| 1026 | index 76ad34b8..f45829c8 100644 |
| 1027 | --- a/src/index.ts |
| 1028 | +++ b/src/index.ts |
| 1029 | @@ -1,6 +1,8 @@ |
| 1030 | export { |
| 1031 | + baseMessagesToUIMessages, |
| 1032 | + stateSnapshotToUIMessages, |
| 1033 | toBaseMessages, |
| 1034 | - toUIMessageStream, |
| 1035 | + toUIMessageStream, |
| 1036 | convertModelMessages, |
| 1037 | } from './adapter'; |
| 1038 | |
| 1039 |