anylang/esm/translators/LLMTranslators/GeminiLLMTranslator/GeminiLLMFetcher.js

A translator's kit that uses the free APIs of Google Translate, Yandex, Bing, ChatGPT, and other LLMs

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
import { z } from 'zod';
export const GeminiLLMResponseSchema = z.object({
    candidates: z
        .object({
        content: z.object({
            parts: z.object({ text: z.string() }).array(),
        }),
    })
        .array()
        .min(1),
});
export class GeminiLLMFetcher {
    constructor({ apiKey, model, apiOrigin, }) {
        this.config = {
            apiKey: apiKey,
            model: model !== null && model !== void 0 ? model : 'gemini-2.0-flash',
            apiOrigin: apiOrigin !== null && apiOrigin !== void 0 ? apiOrigin : `https://generativelanguage.googleapis.com`,
        };
        this.url = new URL(`/v1beta/models/${this.config.model}:generateContent?key=${this.config.apiKey}`, this.config.apiOrigin).toString();
    }
    getLengthLimit() {
        return 5000;
    }
    getRequestsTimeout() {
        return 500;
    }
    fetch(prompt) {
        return __awaiter(this, void 0, void 0, function* () {
            const response = yield fetch(this.url, {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                },
                body: JSON.stringify({
                    contents: [{ role: 'user', parts: [{ text: prompt }] }],
                }),
            });
            if (!response.ok) {
                throw new Error(`Request failed with status ${response.status}: ${response.statusText}`);
            }
            // validate response structure
            const parseResult = GeminiLLMResponseSchema.parse(yield response.json());
            // content.parts contains ordered segments that together may form a complete response from the LLM
            // each segment may contain different types of data (e.g., text, functions, etc.), we join all text parts to get the complete response
            // documentation source: https://ai.google.dev/api/caching#Content
            // join all parts in one string
            const text = parseResult.candidates[0].content.parts
                .map((part) => part.text)
                .join('');
            // for large, poorly structured code, the gemini add extraneous characters
            return text.replace(/^```json\s*?|\s*?```$/g, '').trim();
        });
    }
}

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XBsZXRlIHJlc3BvbnNlXG5cdFx0Ly8gZG9jdW1lbnRhdGlvbiBzb3VyY2U6IGh0dHBzOi8vYWkuZ29vZ2xlLmRldi9hcGkvY2FjaGluZyNDb250ZW50XG5cblx0XHQvLyBqb2luIGFsbCBwYXJ0cyBpbiBvbmUgc3RyaW5nXG5cdFx0Y29uc3QgdGV4dCA9IHBhcnNlUmVzdWx0LmNhbmRpZGF0ZXNbMF0uY29udGVudC5wYXJ0c1xuXHRcdFx0Lm1hcCgocGFydCkgPT4gcGFydC50ZXh0KVxuXHRcdFx0LmpvaW4oJycpO1xuXG5cdFx0Ly8gZm9yIGxhcmdlLCBwb29ybHkgc3RydWN0dXJlZCBjb2RlLCB0aGUgZ2VtaW5pIGFkZCBleHRyYW5lb3VzIGNoYXJhY3RlcnNcblx0XHRyZXR1cm4gdGV4dC5yZXBsYWNlKC9eYGBganNvblxccyo/fFxccyo/YGBgJC9nLCAnJykudHJpbSgpO1xuXHR9XG59XG4iXX0=