dtamind-components
Version:
Apps integration for Dtamind. Contain Nodes and Credentials.
54 lines • 2.44 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ChainTool = void 0;
const tools_1 = require("@langchain/core/tools");
const utils_1 = require("../../../src/utils");
const src_1 = require("../../../src");
class ChainTool extends tools_1.DynamicTool {
constructor({ chain, ...rest }) {
super({
...rest,
func: async (input, runManager) => {
// prevent sending SSE events of the sub-chain
const sseStreamer = runManager?.handlers.find((handler) => handler instanceof src_1.CustomChainHandler)?.sseStreamer;
if (runManager) {
const callbacks = runManager.handlers;
for (let i = 0; i < callbacks.length; i += 1) {
if (callbacks[i] instanceof src_1.CustomChainHandler) {
;
callbacks[i].sseStreamer = undefined;
}
}
}
if (chain.prompt && chain.prompt.promptValues) {
const promptValues = (0, utils_1.handleEscapeCharacters)(chain.prompt.promptValues, true);
const values = await chain.call(promptValues, runManager?.getChild());
if (runManager && sseStreamer) {
const callbacks = runManager.handlers;
for (let i = 0; i < callbacks.length; i += 1) {
if (callbacks[i] instanceof src_1.CustomChainHandler) {
;
callbacks[i].sseStreamer = sseStreamer;
}
}
}
return values?.text;
}
const values = chain.run(input, runManager?.getChild());
if (runManager && sseStreamer) {
const callbacks = runManager.handlers;
for (let i = 0; i < callbacks.length; i += 1) {
if (callbacks[i] instanceof src_1.CustomChainHandler) {
;
callbacks[i].sseStreamer = sseStreamer;
}
}
}
return values;
}
});
this.chain = chain;
}
}
exports.ChainTool = ChainTool;
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