@chinchillaenterprises/mcp-upwork/dist/services/upwork-client.js

Modular Upwork MCP server for job search and proposal management via Upwork API

import axios from "axios";
import { McpError, ErrorCode } from "@modelcontextprotocol/sdk/types.js";
export class UpworkClient {
    static instance;
    client;
    apiKey;
    apiSecret;
    accessToken;
    constructor() {
        // Get credentials from environment variables
        this.apiKey = process.env.UPWORK_API_KEY || "";
        this.apiSecret = process.env.UPWORK_API_SECRET || "";
        this.accessToken = process.env.UPWORK_ACCESS_TOKEN || "";
        if (!this.apiKey || !this.apiSecret) {
            throw new Error("UPWORK_API_KEY and UPWORK_API_SECRET environment variables are required");
        }
        // Initialize Upwork API client
        this.client = axios.create({
            baseURL: "https://www.upwork.com/api",
            timeout: 30000,
            headers: {
                "Authorization": `Bearer ${this.accessToken}`,
                "Content-Type": "application/json",
                "User-Agent": "ChillMCP-Upwork/1.0.0"
            },
        });
    }
    getClient() {
        return this.client;
    }
    static getInstance() {
        if (!UpworkClient.instance) {
            UpworkClient.instance = new UpworkClient();
        }
        return UpworkClient.instance;
    }
    async get(endpoint, params) {
        try {
            const response = await this.client.get(endpoint, { params });
            return response.data;
        }
        catch (error) {
            throw this.handleError(error);
        }
    }
    async post(endpoint, data) {
        try {
            const response = await this.client.post(endpoint, data);
            return response.data;
        }
        catch (error) {
            throw this.handleError(error);
        }
    }
    handleError(error) {
        if (axios.isAxiosError(error)) {
            const axiosError = error;
            if (axiosError.response) {
                const status = axiosError.response.status;
                const data = axiosError.response.data;
                switch (status) {
                    case 401:
                        return new McpError(ErrorCode.InvalidRequest, "Authentication failed. Please check your API credentials.");
                    case 403:
                        return new McpError(ErrorCode.InvalidRequest, "Access forbidden. Please check your API permissions.");
                    case 404:
                        return new McpError(ErrorCode.InvalidRequest, "Resource not found.");
                    case 429:
                        return new McpError(ErrorCode.InvalidRequest, "Rate limit exceeded. Please try again later.");
                    default:
                        return new McpError(ErrorCode.InternalError, `Upwork API error: ${data?.message || axiosError.message}`);
                }
            }
            return new McpError(ErrorCode.InternalError, `Network error: ${axiosError.message}`);
        }
        return new McpError(ErrorCode.InternalError, `Unexpected error: ${error instanceof Error ? error.message : String(error)}`);
    }
}
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