Node.js Backend Engineer - IDX Broker API Integration Specialist - IDX Broker API Integration Specialist
Budget: $30 – $250 USD
Freelancer
Project Overview:
Our existing Node.js (TypeScript) backend, hosted on Replit, is experiencing critical issues with its IDX Broker API integration. We require an experienced backend engineer to diagnose, resolve, and thoroughly test these issues to ensure reliable fetching of real estate listings. The goal is to achieve a fully functional and stable connection to the IDX Broker API for property data retrieval.
Current Tech Stack:
* Backend: Node.js, TypeScript, Express.js
* Hosting/Environment: Replit
* Key Integration: IDX Broker API (using axios for HTTP requests)
* Relevant Files: server/idx-broker-api-client.ts, server/routes.ts, and potentially other legacy/conflicting files.
Problem Description (Detailed for the Freelancer):
We have been encountering two primary categories of issues:
* Persistent 400 Bad Request Errors from IDX Broker API:
* API calls to IDX Broker endpoints (e.g., clients/activels, clients/featured, clients/search) are consistently returning HTTP 400 Bad Request responses.
* Initial diagnosis indicated incorrect query parameter mapping (e.g., using lp_min instead of lp, bd instead of beds, tb instead of baths, city instead of city[], and non-numeric property type values for pt).
* While code modifications were made in server/idx-broker-api-client.ts to correct these parameter names and formats, the 400 errors have persisted in recent diagnostic logs.
* Crucially, recent logs have shown these errors originating from a file seemingly named server/idx-broker-official.ts (e.g., [IDX-Official] Error with Clients Listings: Request failed with status code 400), suggesting that either:
* The updated server/idx-broker-api-client.ts is not being correctly deployed or loaded by the Replit environment.
* A legacy or conflicting file (like server/idx-broker-official.ts) might still exist and be taking precedence or creating conflicts with the intended idx-broker-api-client.ts implementation.
* require is not defined Error in server/routes.ts:
* The server/routes.ts file, specifically within the /api/idx-raw-test endpoint (and potentially other areas), is throwing a "require is not defined" error.
* This is a CommonJS/ES Modules compatibility issue: const axios = require('axios'); is being used in a TypeScript/ES Modules environment where import axios from 'axios'; is required. This error currently prevents certain API diagnostic endpoints from functioning.
Scope of Work:
The selected freelancer will be responsible for the following:
* Comprehensive Codebase Review & Diagnosis:
* Conduct a thorough review of the entire backend codebase, focusing on server/idx-broker-api-client.ts, server/routes.ts, and any other files related to IDX Broker API integration.
* Precisely identify the root cause of the persistent 400 Bad Request errors, confirming correct parameter mapping, endpoint selection, and API key usage.
* Determine if a conflicting or legacy file (server/idx-broker-official.ts or similar) is interfering with the idx-broker-api-client.ts implementation.
* Identify all instances of require() calls for axios or other modules in an ES Modules context.
* Fixing IDX Broker API Integration:
* Parameter Correctness: Ensure all outgoing requests to the IDX Broker API rigorously adhere to IDX Broker's required query parameter names and formats (e.g., lp for low price, hp for high price, beds for bedrooms, baths for bathrooms, city[] for city, and numeric values for pt (property type)).
* Endpoint Strategy: Validate and implement the most appropriate IDX Broker API endpoints for general property listings (e.g., clients/activels or clients/search) based on IDX Broker's client API capabilities.
* Module Resolution: Systematically replace all instances of require('axios') (and any other CommonJS require calls) with the appropriate ES module import statements (e.g., import axios from 'axios';).
* File Consolidation/Clean-up: Safely remove any redundant or conflicting IDX Broker API integration files (e.g., server/idx-broker-official.ts) or refactor the project to ensure only the intended IdxBrokerAPI class from server/idx-broker-api-client.ts is used for all IDX operations.
* Testing & Validation:
* Utilize and enhance the existing /api/idx-full-diagnostics endpoint to provide comprehensive feedback on the IDX Broker API connection status and data retrieval.
* Perform thorough testing to verify that property searches with various criteria (city, price range, bedrooms, bathrooms, property type) successfully return valid, parsed IdxListing data without 400 errors.
* Confirm that data transformation from raw IDX Broker responses to the internal IdxListing interface is accurate and robust.
* Verify that the require is not defined error is completely resolved for all relevant endpoints.
* Deployment & Documentation:
* Apply all necessary code changes directly within the Replit environment.
* Provide clear instructions for future deployments or any specific Replit environment considerations if applicable.
* (Optional, but highly preferred) Add comments to critical code sections explaining the fixes and rationale.
Deliverables:
* A Node.js/TypeScript backend running on Replit with a fully functional and stable IDX Broker API integration.
* Confirmation (via successful API responses and logs) that property listings can be reliably fetched using various search criteria.
* Clean, well-structured, and commented code, free of the identified 400 Bad Request and require is not defined errors.
* Brief summary of the specific issues found and the solutions implemented.
Qualifications:
* Proven experience as a Node.js backend engineer with strong TypeScript skills.
* Demonstrable experience integrating with complex third-party APIs (experience with real estate APIs like IDX Broker is a significant advantage).
* Expertise in debugging HTTP requests, network issues, and API responses.
* Solid understanding of Node.js module systems (CommonJS vs. ES Modules).
* Proficiency with axios for HTTP requests.
* Familiarity with Replit development environment is a plus.
* Excellent problem-solving and communication skills.
Timeline:
1 week
Project Overview:
Our existing Node.js (TypeScript) backend, hosted on Replit, is experiencing critical issues with its IDX Broker API integration. We require an experienced backend engineer to diagnose, resolve, and thoroughly test these issues to ensure reliable fetching of real estate listings. The goal is to achieve a fully functional and stable connection to the IDX Broker API for property data retrieval.
Current Tech Stack:
* Backend: Node.js, TypeScript, Express.js
* Hosting/Environment: Replit
* Key Integration: IDX Broker API (using axios for HTTP requests)
* Relevant Files: server/idx-broker-api-client.ts, server/routes.ts, and potentially other legacy/conflicting files.
Problem Description (Detailed for the Freelancer):
We have been encountering two primary categories of issues:
* Persistent 400 Bad Request Errors from IDX Broker API:
* API calls to IDX Broker endpoints (e.g., clients/activels, clients/featured, clients/search) are consistently returning HTTP 400 Bad Request responses.
* Initial diagnosis indicated incorrect query parameter mapping (e.g., using lp_min instead of lp, bd instead of beds, tb instead of baths, city instead of city[], and non-numeric property type values for pt).
* While code modifications were made in server/idx-broker-api-client.ts to correct these parameter names and formats, the 400 errors have persisted in recent diagnostic logs.
* Crucially, recent logs have shown these errors originating from a file seemingly named server/idx-broker-official.ts (e.g., [IDX-Official] Error with Clients Listings: Request failed with status code 400), suggesting that either:
* The updated server/idx-broker-api-client.ts is not being correctly deployed or loaded by the Replit environment.
* A legacy or conflicting file (like server/idx-broker-official.ts) might still exist and be taking precedence or creating conflicts with the intended idx-broker-api-client.ts implementation.
* require is not defined Error in server/routes.ts:
* The server/routes.ts file, specifically within the /api/idx-raw-test endpoint (and potentially other areas), is throwing a "require is not defined" error.
* This is a CommonJS/ES Modules compatibility issue: const axios = require('axios'); is being used in a TypeScript/ES Modules environment where import axios from 'axios'; is required. This error currently prevents certain API diagnostic endpoints from functioning.
Scope of Work:
The selected freelancer will be responsible for the following:
* Comprehensive Codebase Review & Diagnosis:
* Conduct a thorough review of the entire backend codebase, focusing on server/idx-broker-api-client.ts, server/routes.ts, and any other files related to IDX Broker API integration.
* Precisely identify the root cause of the persistent 400 Bad Request errors, confirming correct parameter mapping, endpoint selection, and API key usage.
* Determine if a conflicting or legacy file (server/idx-broker-official.ts or similar) is interfering with the idx-broker-api-client.ts implementation.
* Identify all instances of require() calls for axios or other modules in an ES Modules context.
* Fixing IDX Broker API Integration:
* Parameter Correctness: Ensure all outgoing requests to the IDX Broker API rigorously adhere to IDX Broker's required query parameter names and formats (e.g., lp for low price, hp for high price, beds for bedrooms, baths for bathrooms, city[] for city, and numeric values for pt (property type)).
* Endpoint Strategy: Validate and implement the most appropriate IDX Broker API endpoints for general property listings (e.g., clients/activels or clients/search) based on IDX Broker's client API capabilities.
* Module Resolution: Systematically replace all instances of require('axios') (and any other CommonJS require calls) with the appropriate ES module import statements (e.g., import axios from 'axios';).
* File Consolidation/Clean-up: Safely remove any redundant or conflicting IDX Broker API integration files (e.g., server/idx-broker-official.ts) or refactor the project to ensure only the intended IdxBrokerAPI class from server/idx-broker-api-client.ts is used for all IDX operations.
* Testing & Validation:
* Utilize and enhance the existing /api/idx-full-diagnostics endpoint to provide comprehensive feedback on the IDX Broker API connection status and data retrieval.
* Perform thorough testing to verify that property searches with various criteria (city, price range, bedrooms, bathrooms, property type) successfully return valid, parsed IdxListing data without 400 errors.
* Confirm that data transformation from raw IDX Broker responses to the internal IdxListing interface is accurate and robust.
* Verify that the require is not defined error is completely resolved for all relevant endpoints.
* Deployment & Documentation:
* Apply all necessary code changes directly within the Replit environment.
* Provide clear instructions for future deployments or any specific Replit environment considerations if applicable.
* (Optional, but highly preferred) Add comments to critical code sections explaining the fixes and rationale.
Deliverables:
* A Node.js/TypeScript backend running on Replit with a fully functional and stable IDX Broker API integration.
* Confirmation (via successful API responses and logs) that property listings can be reliably fetched using various search criteria.
* Clean, well-structured, and commented code, free of the identified 400 Bad Request and require is not defined errors.
* Brief summary of the specific issues found and the solutions implemented.
Qualifications:
* Proven experience as a Node.js backend engineer with strong TypeScript skills.
* Demonstrable experience integrating with complex third-party APIs (experience with real estate APIs like IDX Broker is a significant advantage).
* Expertise in debugging HTTP requests, network issues, and API responses.
* Solid understanding of Node.js module systems (CommonJS vs. ES Modules).
* Proficiency with axios for HTTP requests.
* Familiarity with Replit development environment is a plus.
* Excellent problem-solving and communication skills.
Timeline:
1 week