n8n-nodes-langsmith-prompt/dist/nodes/LangSmithPrompt/LangSmithHelper.js

n8n node to use LangSmith prompt templates with variable substitution

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.fetchPromptTemplateByName = fetchPromptTemplateByName;
exports.invokePromptRaw = invokePromptRaw;
async function fetchPromptTemplateByName(promptName, apiKey) {
    var _a, _b;
    const url = `https://api.smith.langchain.com/commits/-/${encodeURIComponent(promptName)}/latest`;
    try {
        const res = await httpGetJson(url, apiKey);
        return ((_b = (_a = res === null || res === void 0 ? void 0 : res.manifest) === null || _a === void 0 ? void 0 : _a.kwargs) === null || _b === void 0 ? void 0 : _b.template) || null;
    }
    catch (error) {
        console.error('Error fetching prompt template:', error);
        return null;
    }
}
function invokePromptRaw(promptTemplate, params) {
    let result = promptTemplate;
    for (const [key, value] of Object.entries(params)) {
        const regex = new RegExp(`\\{\\s*"?${key}"?\\s*\\}`, 'g');
        result = result.replace(regex, value);
    }
    return result;
}
async function httpGetJson(url, apiKey) {
    try {
        const response = await fetch(url, {
            method: 'GET',
            headers: {
                'x-api-key': apiKey,
                'Accept': 'application/json',
            },
        });
        if (!response.ok) {
            throw new Error(`HTTP error ${response.status}: ${response.statusText}`);
        }
        return await response.json();
    }
    catch (error) {
        throw new Error(`Failed to fetch data: ${error instanceof Error ? error.message : String(error)}`);
    }
}
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