fetch POST is returning HTTP 415, while curl goes on fine and returns result
fetch() does not expect a JavaScript object at body. curl command and fetch() pattern are not the same. Use body: JSON.stringify(<javascript plain object>).
Note: The
bodytype can only be aBlob,BufferSource,FormData,URLSearchParams,USVStringorReadableStreamtype, so for adding aJSONobject to the payload you need to stringify that object.
See Fetch with ReadableStream for status of implementation of ReadableStream set as value for body.
you must define Accept and Content-Type headers like that and stringify your data object
const params = { headers: { 'Accept': "application/json, text/plain, */*", 'Content-Type': "application/json;charset=utf-8" }, body: JSON.stringify(yourObject), method: "POST" };fetch(url, params) .then(data => { console.log('data', data)}) .then(res => { console.log('res', res) }) .catch(error => { console.log('error', error) });