尝试将 PDF 文件上传到 React-native 中的服务器时出错

Question

I take PDF file from Phone Gallery and upload to server. but when I upload it to server. I get a Error "[SyntaxError: JSON Parse error: Unrecognized token '<']".

my code Is:

  ```  const UploadCV= async()=>{ //Take pdf file from Phone.
      try {
        
        const res = await DocumentPicker.pick({
          type: [DocumentPicker.types.pdf],
        });
        setResume(res.uri)
       
        Alert.alert('Congrulation!!',"Your CV has been Successfuly Uploaded")
        setTimeout(() => {
          this.bs.current.snapTo(1);
        }, 2000);
      
       
      } catch (err) {
        if (DocumentPicker.isCancel(err)) {
       
        } else {
          throw err;
        }
      }
    }
       //Upload to Server
       const ApplyforJOb= async()=>{ 
         await fetch('https://thejoblocator.co.uk/api/RestApplyJob',{
           method:'post',
           headers:{
             'Content-Type':'application/octet-stream',
           },
            body: JSON.stringify({
              job_id:jobid,
              description:description,
              resume :resume                  
            })
         }).then(res=>res.json())
           .then(data=>{
             console.log("coming data", data)
           }).catch(err=>{
             console.log("Apply Job Error", err)
           })
       }```

Answer 1

You are not uploading any files Your error is saying that your json at body is not correct

The pdf file uri is link to assets in phone not the file and you can't upload a file in json like this,you can either make at blob and embed it like a string json and then upload or you can upload view form data Please check How to upload file to server using react-native