v0 and Backblaze B2 Cloud Storage integration: Step-by-Step Guide 2025

 

Prerequisites

 

• Obtain your Backblaze B2 account credentials: Account ID and Application Key.
• Decide on a target bucket and note its Bucket ID from your Backblaze B2 dashboard.

 

Adding Dependencies via Code

 

• Create or open your package.json file in the root of your v0 project.
• Add (or update) the following JSON to include the required dependencies. This project uses the Axios library to handle HTTP requests. Since you do not have a terminal, including them in package.json will let the project know what is needed:

{
  "name": "v0-project",
  "version": "1.0.0",
  "dependencies": {
    "axios": "^1.4.0"
  }
}
  

• Ensure that your v0 platform reads the dependencies from package.json and installs them automatically.

 

Creating the Backblaze B2 Service File

 

• Create a new file named backblaze.ts in your project’s source directory (for example, in a folder named src if your project structure supports it).
• Insert the following TypeScript code into backblaze.ts. This code defines a service class that handles authorization with Backblaze B2 and uploading files:

import axios from "axios";
import * as crypto from "crypto";

export class BackblazeB2Service {
  private accountId: string;
  private applicationKey: string;
  private authToken: string | null = null;
  private apiUrl: string | null = null;
  private downloadUrl: string | null = null;

  constructor(accountId: string, applicationKey: string) {
    this.accountId = accountId;
    this.applicationKey = applicationKey;
  }

  // Authorize the account with Backblaze B2
  public async authorize(): Promise {
    const authString = Buffer.from(${this.accountId}:${this.applicationKey}).toString("base64");
    const response = await axios.get("https://api.backblazeb2.com/b2api/v2/b2authorizeaccount", {
      headers: {
        Authorization: Basic ${authString}
      }
    });
    this.authToken = response.data.authorizationToken;
    this.apiUrl = response.data.apiUrl;
    this.downloadUrl = response.data.downloadUrl;
  }

  // Upload a file to a specified bucket
  public async uploadFile(bucketId: string, fileName: string, fileData: Buffer): Promise {
    if (!this.authToken || !this.apiUrl) {
      throw new Error("Not authorized. Please call authorize() first.");
    }

    // Get the upload URL for the bucket
    const urlResponse = await axios.post(
      ${this.apiUrl}/b2api/v2/b2_get_upload_url,
      { bucketId },
      {
        headers: {
          Authorization: this.authToken
        }
      }
    );
    const uploadUrl = urlResponse.data.uploadUrl;
    const uploadAuthToken = urlResponse.data.authorizationToken;

    // Calculate SHA1 hash of the file data
    const fileSha1 = crypto.createHash("sha1").update(fileData).digest("hex");

    // Upload the file data
    const uploadResponse = await axios.post(uploadUrl, fileData, {
      headers: {
        Authorization: uploadAuthToken,
        "X-Bz-File-Name": encodeURIComponent(fileName),
        "Content-Type": "b2/x-auto",
        "Content-Length": fileData.length,
        "X-Bz-Content-Sha1": fileSha1
      }
    });
    return uploadResponse.data;
  }
}
  

 

Setting Up Configuration for Credentials

 

• Create a new file named config.ts (or similar) in your project’s source directory.
• Insert the following code to store your Backblaze credentials. Replace the placeholder values with your actual Account ID, Application Key, and Bucket ID:

export const BACKBLAZE_CONFIG = {
  accountId: "YOURACCOUNTID",
  applicationKey: "YOURAPPLICATIONKEY",
  bucketId: "YOURBUCKETID"
};
  

 

Using the Backblaze Service in Your Project

 

• Locate the part of your code where you want to integrate file uploads to Backblaze B2. For example, this might be in a module that handles file processing or uploads.
• Import and instantiate the BackblazeB2Service using your configuration values. Then, call the authorization and upload methods as needed. Insert the following code snippet in the appropriate file (such as uploadHandler.ts):

import { BackblazeB2Service } from "./backblaze";
import { BACKBLAZE_CONFIG } from "./config";

// Example function to upload a file
async function uploadFileToB2() {
  try {
    // Create an instance of the service
    const b2Service = new BackblazeB2Service(
      BACKBLAZE_CONFIG.accountId,
      BACKBLAZE_CONFIG.applicationKey
    );
    
    // Authorize your account (this step must be done before any uploads)
    await b2Service.authorize();

    // Prepare your file data; for example, read a file into a Buffer
    // Here use a placeholder Buffer. Replace with actual file data.
    const fileData = Buffer.from("Sample file content");
    const fileName = "sample.txt";

    // Upload the file to your bucket
    const result = await b2Service.uploadFile(BACKBLAZE_CONFIG.bucketId, fileName, fileData);

    console.log("Upload Successful:", result);
  } catch (error) {
    console.error("Error during upload:", error);
  }
}

// Call the function to execute the upload process
uploadFileToB2();
  

• Integrate this code snippet logically into your application workflow where file uploads are triggered.

 

Finalizing and Testing Your Integration

 

• Ensure all files (package.json, backblaze.ts, config.ts, and your integration code) are saved in your project.
• Since you do not have access to a terminal, rely on your platform’s auto-deployment or build process to compile and run your TypeScript code.
• Check the project logs for any errors during the authorization or file upload process.
• Once the upload completes successfully, inspect your Backblaze B2 dashboard to verify that the file has been added to the correct bucket.