axios-inference-polling/dist/index.js

A package for polling the inference status until it is completed.

"use strict";
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());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Inference = void 0;
const axios_1 = require("axios");
const sleep = (timeInMs) => new Promise((resolve) => setTimeout(resolve, timeInMs));
class Inference {
    constructor() {
        this.axios = new axios_1.Axios();
        this.subscribers = [];
    }
    subscribeToEvents(handler) {
        if (typeof handler !== "function")
            throw new Error("Not a valid subscriber function");
        this.subscribers = [...this.subscribers, handler];
    }
    unsubscribeToEvents(handler) {
        if (typeof handler !== "function")
            throw new Error("Not a valid subscriber function");
        this.subscribers = this.subscribers.filter((sub) => sub !== handler);
    }
    emitEvent(event, type) {
        this.subscribers.forEach((sub) => sub(event, type));
    }
    createInferenceRequest(_a) {
        return __awaiter(this, arguments, void 0, function* ({ create_prediction_url, payload, config, onError, }) {
            try {
                const { data } = yield this.axios.post(create_prediction_url, payload, config);
                this.emitEvent(data, "CREATE_PREDICTION");
                return data;
            }
            catch (error) {
                if (onError)
                    onError(error);
                throw new Error(`Error while creating prediction, error: ${JSON.stringify(error)}`);
            }
        });
    }
    pollInferenceRequest(_a) {
        return __awaiter(this, arguments, void 0, function* ({ create_prediction_url, prediction_status_url, payload, config, onError, }) {
            let prediction = yield this.createInferenceRequest({
                create_prediction_url,
                payload,
                config,
                onError,
            });
            while (prediction &&
                prediction.status !== "succeeded" &&
                prediction.status !== "failed" &&
                prediction.status !== "canceled") {
                yield sleep(2000);
                try {
                    const { data } = yield this.axios.get(`/${prediction_status_url}/${prediction.id}`);
                    prediction = data;
                }
                catch (error) {
                    if (onError)
                        onError(error);
                    throw new Error(`Error while getting prediction status, error: ${JSON.stringify(error)}`);
                }
                this.emitEvent(prediction, "UPDATE_PREDICTION");
            }
            this.emitEvent(prediction, "UPDATE_PREDICTION");
            return prediction;
        });
    }
}
exports.Inference = Inference;