94

I am receiving a bindata from the Nodejs server and now from that I need to display an image.

How can I achieve this? Is there any method to convert bindata to JPEG or any other format? Or is it possible to convert that in server and then send that image to react?

Here's how I'm trying to display the binary data (item.Image.data.data) with an image tag:

<img src={item.Image.data.data} />

This is my detailed react code snippet:

componentDidMount(){
  let self = this;
  axios.get('http://localhost:8080/list')
    .then(function(data) {
      console.log(data);
      self.setState({post:data.data});
    });
}

<ul className="w3-ul w3-card-4 w3-light-grey">
  { this.state.post.map((item, index) => {
    return (
      <Link  to="/displaylist" style={{ textDecoration: 'none' }} key={index}>
        <li className=" w3-hover-green w3-padding-16" onClick={this.handleClick(item.Id)}>
          <img src={item.Image.data.data} className="w3-left w3-circle w3-margin-right" width="60px" height="40px" />
          <span>{item.Firstname}</span><br/><br/>
        </li>
      </Link>
      )}
  )}
</ul>

This is my nodejs code snippet:

server.get('/list', function(req, res) {
    databaseInterface.listStudent(function(err, students) {
      var myJSON = students;

      res.json(myJSON);
      // You should see the newly saved student here
    });
});
6
  • 4
    you mean your image is in base64 string format? Commented Feb 22, 2017 at 15:18
  • yes like series of characters. Commented Feb 22, 2017 at 15:22
  • 1
    Do u know how to achieve that? Commented Feb 23, 2017 at 7:44
  • 1
    have you tried the suggestion below? <img src="data:image/jpeg;base64,{binary data}" /> I think this should work Commented Feb 23, 2017 at 7:49
  • Yes i have tried both. But i am getting error like this : GET data:image/jpeg;base64,{item.Image.data.data} for using this <img src="data:image/jpeg;base64,{binary data}" /> Commented Feb 23, 2017 at 7:52

4 Answers 4

154

If the binary data is represented as a base64 string:

// Base64 string data
const data = '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'

const Example = ({ data }) => <img src={`data:image/jpeg;base64,${data}`} />

ReactDOM.render(<Example data={data} />, document.getElementById('container'))
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="container"></div>

If you just have an image URL, you can simply do:

const imageURL = 'https://upload.wikimedia.org/wikipedia/commons/thumb/a/a7/React-icon.svg/1280px-React-icon.svg.png'

const Example = ({ imageURL }) =>  <img src={imageURL} width={100} />

ReactDOM.render(<Example imageURL={imageURL} />, document.getElementById('container'))
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="container"></div>

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6 Comments

I am still getting error like : GET data:image/jpeg;base64,{item.Image.data.data} for using this <img src="data:image/jpeg;base64,{binary data}" />
@AbhilashMuttalli I've added React example. You can check it.
Make sure your image is properly encoded. For instance in base64. Here is described why: stackoverflow.com/questions/201479/…
You're welcome! I'm really happy that I helped you! :)
And what if the binary data is literally binary data? E.g. it got sent over via a websocket and it's just a UInt8Array? Converting to base64 of blob is rather expensive, especially if you're running a (low framerate) equivalent of a frame server.
|
35

If you need to display binary image from api, and the binary data look like this ����JFIF��� ��� convert to blob first and use URL.createObjectUrl(BLOB);

  1. using axios, add {responseType: 'blob'} to the config

or

  1. using fetch api, response.blob();

display image from blob <img src={URL.createObjectURL(responseData)} />

I don't know is this the best solution or not, but it works.

3 Comments

this is the answer for that JFIF response
in number 1, using axios, add {responseType: 'blob'} to the config, I have code like this ` return axios.post(${API_MOBILE}/${path}, formData, { headers: { 'Content-Type': 'multipart/form-data', }, })` did I should put {responseType: 'blob'} inside return.axios()`?
stackoverflow.com/questions/62748564/… here my question, please come and give some suggestion for me please
17

If you get the data as

1) Base64 Encoded string

It will look like iVBORw0KGgoAAAANSUh...

Then just prepend data:image/jpeg;base64, or data:image/png;base64, as per your filetype on the src value.

2) Non Base64 Encoded string

The data of response will look like ����JFIF��� ���

In that case, use responseType: "arraybuffer" in the request

and we will get the response as arrayBuffer which can then be converted to base64 string and later you can prepend the data:image/jpeg;base64, when you use it as the src of an img tag.

Refer https://stackoverflow.com/a/68587064/6707951

Comments

-4

You can simply concatenate your variable with server path:

<img src={`http://yourip${cat.path}`} width="100px" height="100px" />

<img src={`${serverUrl}${cat.path}`} width="100px" height="100px" />

This is working very well for me, hope this will help you!

Comments

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