75 lines
2.3 KiB
JavaScript
75 lines
2.3 KiB
JavaScript
import {Configuration, OpenAIApi} from "openai";
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import {getConfigVariable} from "./util.js";
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export default class OpenAiService {
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#openAi;
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#model = "gpt-3.5-turbo-instruct";
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constructor() {
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const apiKey = getConfigVariable("OPENAI_API_KEY")
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const configuration = new Configuration({
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apiKey
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});
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this.#openAi = new OpenAIApi(configuration)
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}
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async classify(categories, destinationName, description) {
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try {
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const prompt = this.#generatePrompt(categories, destinationName, description);
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const response = await this.#openAi.createCompletion({
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model: this.#model,
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prompt
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});
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let guess = response.data.choices[0].text;
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guess = guess.replace("\n", "");
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guess = guess.trim();
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if (categories.indexOf(guess) === -1) {
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console.warn(`OpenAI could not classify the transaction.
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Prompt: ${prompt}
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OpenAIs guess: ${guess}`)
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return null;
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}
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return {
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prompt,
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response: response.data.choices[0].text,
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category: guess
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};
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} catch (error) {
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if (error.response) {
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console.error(error.response.status);
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console.error(error.response.data);
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throw new OpenAiException(error.status, error.response, error.response.data);
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} else {
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console.error(error.message);
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throw new OpenAiException(null, null, error.message);
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}
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}
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}
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#generatePrompt(categories, destinationName, description) {
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return `Given i want to categorize transactions on my bank account into this categories: ${categories.join(", ")}
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In which category would a transaction from "${destinationName}" with the subject "${description}" fall into?
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Just output the name of the category. Does not have to be a complete sentence.`;
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}
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}
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class OpenAiException extends Error {
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code;
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response;
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body;
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constructor(statusCode, response, body) {
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super(`Error while communicating with OpenAI: ${statusCode} - ${body}`);
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this.code = statusCode;
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this.response = response;
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this.body = body;
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}
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} |