readImage.js

 selectImage = async () => {

    ImagePicker.showImagePicker(options, async (response) => {

      if (response.didCancel) {
        this.setState({ error: 'Image upload failed', loading: null });
      } else if (response.error) {
        this.setState({ error: 'Image upload failed', loading: null });
      } else if (response.customButton) {
        this.setState({ error: 'Image upload failed', loading: null });
      } else {
        const source = { uri: response.uri };
        this.setState({
          uploadStatus: true,
          avatarSource: source,
          uri: response.uri,
          type: response.type,
          name: response.fileName,
          originalName: response.fileName
        });


        global.data = new FormData();

        data.append('file', {
          uri: response.uri,
          type: response.type,
          name: response.fileName,
          originalname: response.fileName,
        });


        const config = {
          method: 'POST',
          headers: {
            Accept: 'application/json',
            'Content-Type': 'multipart/form-data',
          },
          body: data,
        };
      }
    })
  }