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javascriptnode.jsmultipartform-dataform-datarequest-promise

TypeError: Cannot read property 'name' of null NodeJs


I am learning and experimenting on NodeJs. I am using request-promise to call another api from NodeJs. I am using form-data to create a form and send it to another api. My snippet:

const requestPromise = require('request-promise');
const FormData = require('form-data');
....

var sendToAPI = async (fileObjBuffer, myId, timestamp) => {

    let formData = new FormData();
    formData.append('fileData', fileObjBuffer);
    formData.append('myId', myId);
    formData.append('fileName', timestamp);

    let options = {
        method: 'POST',
        uri: '<URL>',
        formData: formData,
        headers: {
            'Access-Control-Allow-Origin': '*',
            'enctype': 'multipart/form-data',
            'Content-Type': 'application/json',
            'Access-Control-Allow-Methods': 'GET,POST,OPTIONS,DELETE,PUT'
        },
        json: true
    };
    try {
        let apiResult = await requestPromise(options).promise();
        console.log('\n\napiResult: ', apiResult);
    } catch (error) {
        console.log('error in sending to api: ',error);
    } 
}

var fetchAllData = async () => {
    let query = 'select * from demo_db.demo_table;';
    let fileObject = "";
    var result;
    try {
        //cassandra query
        result = await client.execute(query, [], { prepare: true });
    } catch (error) {
        console.log('error in fetching data from Cassandra: ',error);
    }
    result.rows.forEach(resultObj => {
        fileObject = fileObject +resultObj['room_id'] +":"+resultObj['message_id']+":"+resultObj['original_message'] +":"+resultObj['send_date'] +":"+  resultObj['sender'] +"%";
    });
    let fileObjBuffer = new Buffer(fileObject);
    let myId = uuidv4();
    let timestamp = date.format(new Date(), 'YYYYMMMDDhhmmss', false);  
    sendToAPI(fileObjBuffer,myId,timestamp);
}

My error:

error in sending to api:  TypeError: Cannot read property 'name' of null
at FormData._getContentDisposition (/home/bhushan/NodeJS-Scheduler/node_modules/request/node_modules/form-data/lib/form_data.js:226:40)
at FormData._multiPartHeader (/home/bhushan/NodeJS-Scheduler/node_modules/request/node_modules/form-data/lib/form_data.js:177:33)
at FormData.append (/home/bhushan/NodeJS-Scheduler/node_modules/request/node_modules/form-data/lib/form_data.js:70:21)
at appendFormValue (/home/bhushan/NodeJS-Scheduler/node_modules/request/request.js:326:21)
at Request.init (/home/bhushan/NodeJS-Scheduler/node_modules/request/request.js:337:11)
at Request.RP$initInterceptor [as init] (/home/bhushan/NodeJS-Scheduler/node_modules/request-promise-core/configure/request2.js:45:29)
at new Request (/home/bhushan/NodeJS-Scheduler/node_modules/request/request.js:127:8)
at request (/home/bhushan/NodeJS-Scheduler/node_modules/request/index.js:53:10)
at sendToAPI (/home/bhushan/NodeJS-Scheduler/schedulerTest.js:52:25)
at fetchAllData (/home/bhushan/NodeJS-Scheduler/schedulerTest.js:95:2)
at process._tickCallback (internal/process/next_tick.js:68:7)

Please help me to solve this issue.


Solution

  • request-promise internally handles form-data. Therefore no need to use form-data explicitly. Instead I made normal object in following way:

    var formData = {
        fileData: {
            value: fileObjBuffer,
            filename: timestamp
        },
        fileName: timestamp,
        myId: myId
    }