@n8n/n8n-nodes-langchain
Version:
65 lines • 2.17 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MessageParser = void 0;
const types_js_1 = require("@modelcontextprotocol/sdk/types.js");
class MessageParser {
static parse(body) {
try {
const message = JSON.parse(body);
return types_js_1.JSONRPCMessageSchema.parse(message);
}
catch {
return undefined;
}
}
static isToolCall(body) {
const message = this.parse(body);
if (!message)
return false;
return ('method' in message &&
'id' in message &&
message.method === types_js_1.CallToolRequestSchema.shape.method.value);
}
static isListToolsRequest(body) {
const message = this.parse(body);
if (!message)
return false;
return ('method' in message &&
'id' in message &&
message.method === types_js_1.ListToolsRequestSchema.shape.method.value);
}
static getRequestId(message) {
try {
const parsed = types_js_1.JSONRPCMessageSchema.parse(message);
return 'id' in parsed ? String(parsed.id) : undefined;
}
catch {
return undefined;
}
}
static extractToolCallInfo(body) {
const message = this.parse(body);
if (!message)
return undefined;
if ('method' in message &&
'params' in message &&
message.method === types_js_1.CallToolRequestSchema.shape.method.value) {
const params = message.params;
if (typeof params === 'object' &&
params !== null &&
'name' in params &&
typeof params.name === 'string' &&
'arguments' in params &&
typeof params.arguments === 'object' &&
params.arguments !== null) {
return {
toolName: params.name,
arguments: params.arguments,
};
}
}
return undefined;
}
}
exports.MessageParser = MessageParser;
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