Build a React.js File Viewer to Render DOCX,PDF,Excel & CSV Using react-file-viewer in Browser

App.jsx

import React, { useState } from "react";
import FileViewer from "react-file-viewer";
import { Container, Row, Col, Form } from "react-bootstrap";
import "bootstrap/dist/css/bootstrap.min.css";

const App = () => {
  const [fileType, setFileType] = useState("image");
  const [file, setFile] = useState(null);

  const handleFileTypeChange = (e) => {
    setFileType(e.target.value);
    setFile(null); // Reset file when type changes
  };

  const handleFileChange = (e) => {
    const selectedFile = e.target.files[0];
    if (selectedFile) {
      const fileURL = URL.createObjectURL(selectedFile);
      setFile(fileURL);
    }
  };

  const renderFileViewer = () => {
    if (!file) {
      return <p className="text-muted">No file selected. Please upload a file.</p>;
    }

    if (["pdf", "docx"].includes(fileType)) {
      return (
        <FileViewer
          fileType={fileType}
          filePath={file}
          errorComponent={() => <p>Error loading file</p>}
        />
      );
    }

    if (["image"].includes(fileType)) {
      return <img src={file} alt="Uploaded File" style={{ maxWidth: "100%" }} />;
    }

    if (["video"].includes(fileType)) {
      return <video controls style={{ width: "100%" }} src={file} />;
    }

    if (["audio"].includes(fileType)) {
      return <audio controls src={file} />;
    }

    return <p className="text-danger">Unsupported file type selected.</p>;
  };

  return (
    <Container className="mt-4">
      <Row>
        <Col>
          <h1>File Viewer</h1>
        </Col>
      </Row>
      <Row className="mb-3">
        <Col>
          <Form>
            <Form.Label>Select File Type:</Form.Label>
            <div>
              <Form.Check
                inline
                label="Image"
                type="radio"
                value="image"
                checked={fileType === "image"}
                onChange={handleFileTypeChange}
              />
              <Form.Check
                inline
                label="Video"
                type="radio"
                value="video"
                checked={fileType === "video"}
                onChange={handleFileTypeChange}
              />
              <Form.Check
                inline
                label="Audio"
                type="radio"
                value="audio"
                checked={fileType === "audio"}
                onChange={handleFileTypeChange}
              />
              <Form.Check
                inline
                label="PDF"
                type="radio"
                value="pdf"
                checked={fileType === "pdf"}
                onChange={handleFileTypeChange}
              />
              <Form.Check
                inline
                label="DOCX"
                type="radio"
                value="docx"
                checked={fileType === "docx"}
                onChange={handleFileTypeChange}
              />
            </div>
          </Form>
        </Col>
      </Row>
      {fileType && (
        <Row className="mb-3">
          <Col>
            <Form>
              <Form.Label>Select a File:</Form.Label>
              <Form.Control
                type="file"
                accept={
                  fileType === "image"
                    ? "image/*"
                    : fileType === "video"
                    ? "video/*"
                    : fileType === "audio"
                    ? "audio/*"
                    : fileType === "pdf"
                    ? ".pdf"
                    : fileType === "docx"
                    ? ".docx"
                    : ""
                }
                onChange={handleFileChange}
              />
            </Form>
          </Col>
        </Row>
      )}
      <Row>
        <Col>
          <h4>File Preview:</h4>
          <div style={{ border: "1px solid #ddd", padding: "10px" }}>
            {renderFileViewer()}
          </div>
        </Col>
      </Row>
    </Container>
  );
};

export default App;

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import React, { useState } from "react";

import FileViewer from "react-file-viewer";

import { Container, Row, Col, Form } from "react-bootstrap";

import "bootstrap/dist/css/bootstrap.min.css";

const App = () => {

const [fileType, setFileType] = useState("image");

const [file, setFile] = useState(null);

const handleFileTypeChange = (e) => {

setFileType(e.target.value);

setFile(null); // Reset file when type changes

};

const handleFileChange = (e) => {

const selectedFile = e.target.files[0];

if (selectedFile) {

const fileURL = URL.createObjectURL(selectedFile);

setFile(fileURL);

}

};

const renderFileViewer = () => {

if (!file) {

return <p className="text-muted">No file selected. Please upload a file.</p>;

}

if (["pdf", "docx"].includes(fileType)) {

return (

<FileViewer

fileType={fileType}

filePath={file}

errorComponent={() => <p>Error loading file</p>}

);

}

if (["image"].includes(fileType)) {

return <img src={file} alt="Uploaded File" style={{ maxWidth: "100%" }} />;

}

if (["video"].includes(fileType)) {

return <video controls style={{ width: "100%" }} src={file} />;

}

if (["audio"].includes(fileType)) {

return <audio controls src={file} />;

}

return <p className="text-danger">Unsupported file type selected.</p>;

};

return (

<Row>

<Col>

<h1>File Viewer</h1>

</Col>

</Row>

<Col>

<Form>

<Form.Label>Select File Type:</Form.Label>

<div>

<Form.Check

inline

label="Image"

type="radio"

value="image"

checked={fileType === "image"}

onChange={handleFileTypeChange}

<Form.Check

inline

label="Video"

type="radio"

value="video"

checked={fileType === "video"}

onChange={handleFileTypeChange}

<Form.Check

inline

label="Audio"

type="radio"

value="audio"

checked={fileType === "audio"}

onChange={handleFileTypeChange}

<Form.Check

inline

label="PDF"

type="radio"

value="pdf"

checked={fileType === "pdf"}

onChange={handleFileTypeChange}

<Form.Check

inline

label="DOCX"

type="radio"

value="docx"

checked={fileType === "docx"}

onChange={handleFileTypeChange}

</div>

</Form>

</Col>

</Row>

{fileType && (

<Col>

<Form>

<Form.Label>Select a File:</Form.Label>

<Form.Control

type="file"

accept={

fileType === "image"

? "image/*"

: fileType === "video"

? "video/*"

: fileType === "audio"

? "audio/*"

: fileType === "pdf"

? ".pdf"

: fileType === "docx"

? ".docx"

: ""

}

onChange={handleFileChange}

</Form>

</Col>

</Row>

)}

<Row>

<Col>

<h4>File Preview:</h4>

{renderFileViewer()}

</div>

</Col>

</Row>

</Container>

);

};

export default App;

Build a React.js File Viewer to Render DOCX,PDF,Excel & CSV Using react-file-viewer in Browser

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