Transferring attachments through REST API's using nodejs

[Aholic21]

Hi Team,

I need help transferring attachments from ticket to other ticket between different tables in ServiceNow. I tried with all the possibilities with my knowledge.

This is the code to get attachment content

let file = {

        method: "GET",

        url: https://${service-now instance}/api/now/attachment/${sys_id of attachment}/file,

        headers: {

          authorization: this.getBasicAuthorizationToken(

            itsmData.principal,

            itsmData.secret

          ),

          responseType: "arraybuffer",

        },

      };

      let image = await axios(file);

let base64data = await Buffer.from(image.data).toString("base64");

let data = await Buffer.from(base64data, "base64");

Sending data as attachment content into POST attachment call for uploading file. File is getting uploaded, but the data is corrupted. If I have done this through postman and followed same process after saving response to local it's working good.

Please help me to fix this, if it's possible. I am using node v14.15.1 to develop this.