check if command is executed

Hi everyone How i can check if there is a command is executed in real time and get status if there is finished ? Because here i have a chat application with react native and user can send a video and before the video terminate compress he send another so it will call the method of compress another time without terminate the compress of the first ? here is my code : for (var i = 0; i < media.length; i++) { // console.log("send :", media[i].uri); this.setState({ mediaUploaded: true });

        let name;

        if (media[i].image) {
          type = "image/jpeg";
          name = "photo.jpg";
          data.append("files[" + i + "]", {
            uri:
              Platform.OS === "android"
                ? media[i].uri
                : media[i].uri.replace("file://", ""), // your file path string
            name: name,
            type: type
          });
        } else if (media[i].video) {
          let output;
          //setTimeout(this.compressionVideo(),2000);
          if (media[i].camera) {
            await this.convertVideo(i.toString(),
              Platform.OS === "android"
                ? media[i].path
                : media[i].uri.replace("file://", "")
            );
          } else
            output = await this.convertVideo(i.toString(),
              Platform.OS === "android"
                ? media[i].uri
                : media[i].uri.replace("file://", "")
            );
          // console.log(output);
          type = "video/mp4";
          name = "video.mp4";
          let file = "";

          if (Platform.OS == "ios")
            file = `${RNFetchBlob.fs.dirs.DocumentDir}/convert${i.toString()}.mp4`;
          else file = `file://${RNFetchBlob.fs.dirs.PictureDir}/convert${i.toString()}.mp4`;
          console.log(file);
          data.append("files[" + i + "]", {
            uri: file, // your file path string
            name: name,
            type: type
          });
        }
      }

async convertVideo(i,uri) {

  console.log(uri);
let index=i;
RNFetchBlob.fs
  .stat(uri)
  .then(stats => {
    this.setState({ size: stats.size });
  })
  .catch(err => {
    console.log(err);
  });
let outputpath = "";

this.setState({videoConvert:true})

if (Platform.OS == "ios")
  outputpath = `${RNFetchBlob.fs.dirs.DocumentDir}/convert${i}.mp4`;
else outputpath = `${RNFetchBlob.fs.dirs.PictureDir}/convert${i}.mp4`;
const fs = RNFetchBlob.fs
if (Platform.OS == "ios"){
  await  RNFetchBlob.fs.writeFile(outputpath, '', 'uri')
  .then((success) => {
    console.log('FILE WRITTEN!');
  })
}

if (Platform.OS === "android") {
  await this.requestPermission();
}

RNFFmpeg.resetStatistics();

RNFFmpeg.enableStatisticsCallback(this.statisticsCallback);
const path=this.addQuotes(uri);
let command= `-i  ${path}   -vf  scale=-2:-2:force_original_aspect_ratio=decrease,setsar=1  -vcodec libx264 -y  ${outputpath}`;
console.log(uri, " command : ",command);
await RNFFmpeg.execute(

command ).then(result => { let messagesChat = [...this.state.messagesChat]; for (var i = 0; i < messagesChat.length; i++) { let item = messagesChat[i]; this.setState({videoConvert:false}) if (item && item.destination === "web") { let media = item.media[0].media; if(media[index]) media[index].compression = false;

    }

    messagesChat[i] = {
      ...item
    };
  }

  this.setState({ messagesChat: messagesChat, compressionValue: 0 });
});

}

tanersener / react-native-ffmpeg

check if command is executed #125