v0 and Harvest integration: Step-by-Step Guide 2025

 

Configuring Harvest API Credentials

 

In your v0 project, create a new TypeScript file named harvestConfig.ts in the root folder. In this file, add your Harvest API credentials. Replace the placeholder values (YOURHARVESTACCOUNTID, YOURACCESS_TOKEN) with your actual credentials.

export const HARVESTACCOUNTID = 'YOURHARVESTACCOUNT_ID';
export const HARVESTACCESSTOKEN = 'YOURACCESSTOKEN';

 

Creating the Harvest Service File

 

Create another new TypeScript file called harvestService.ts. This file will include functions to interact with the Harvest API. In this example, one function retrieves projects from Harvest. The built‐in fetch API is used so that you do not need to install additional dependencies. Paste the following code snippet:

import { HARVESTACCOUNTID, HARVESTACCESSTOKEN } from './harvestConfig';

const BASE_URL = 'https://api.harvestapp.com/v2';

interface Project {
  id: number;
  name: string;
  is_active: boolean;
  // Add other fields as needed from the Harvest Project API response
}

export async function getHarvestProjects(): Promise<Project[]> {
  try {
    const response = await fetch(${BASE_URL}/projects, {
      method: 'GET',
      headers: {
        'Authorization': Bearer ${HARVEST_ACCESS_TOKEN},
        'Harvest-Account-Id': HARVESTACCOUNTID,
        'User-Agent': 'v0-Integration ([email protected])',
        'Content-Type': 'application/json'
      }
    });

    if (!response.ok) {
      throw new Error(Error fetching projects: ${response.statusText});
    }

    const data = await response.json();
    return data.projects;
  } catch (error) {
    console.error('Harvest API error:', error);
    return [];
  }
}

 

Integrating Harvest Service in Your v0 Application

 

Locate the main entry file of your v0 project (for example app.ts or index.ts) where you handle business logic. Import the Harvest service function and use it where required. Insert the following code snippet in the appropriate section (such as in a route handler or during initialization):

import { getHarvestProjects } from './harvestService';

// Example function to demonstrate using the Harvest API service
async function displayHarvestProjects(): Promise<void> {
  const projects = await getHarvestProjects();
  console.log('Harvest Projects:');
  projects.forEach(project => {
    console.log(ID: ${project.id}, Name: ${project.name}, Active: ${project.is_active});
  });
}

// Call the function where appropriate in your application
displayHarvestProjects();

 

Manually Adding Dependencies (If Necessary)

 

Since v0 does not support a terminal, you need to manually add any dependency instructions into your code comments or documentation. If your project requires installation of extra libraries (which is not needed in the above example because it uses the built-in fetch), you would add them to your package.json. For example, to add node-fetch (if required), manually update your package.json as follows:

{
  "name": "your-v0-project",
  "version": "1.0.0",
  "dependencies": {
    "node-fetch": "^3.0.0"
  }
}

Then import node-fetch in your code when needed:

import fetch from 'node-fetch';

 

Final Notes

 

Ensure that all files (harvestConfig.ts, harvestService.ts, and your main application file) are saved in the correct directories. The provided code snippets assume your files are in the root directory of your project. Adjust the file paths as needed if your project structure differs.

By following these steps, you will have integrated Harvest into your v0 project using TypeScript.