Using Transactions with GraphDB REST API to push a file into a repository - rest

Question

i have the following requirement:
After selecting an ontology file i need to send it into my GraphDB-Repository. I´m programming with Angular 8.
I looked at the REST API Documentation and tried my best to understand what i need to do (i have like 3 months of experience with coding in angular [and overall actually], so all these concepts are still pretty new to me).
So i figured out i could start a new transaction, get the transaction-id and use it to submit my file. I dont know if this appraoch works, but anyway i´m not able to get the transaction-id, because it appears nowhere in the server response.
Recording to the documentation it should be in the header. But there is only the following content:
"cache-control": "no-store",
"content-language": "de",
"content-type": "text/plain;charset=UTF-8"
Thanks in advance!
var config_post: AxiosRequestConfig = {
method: `POST`,
headers: {
'Content-Type': 'application/json',
'Accept': 'text/plain',
},
// responseType: 'text',
// data: formData,
url: "http://localhost:7200/repositories/testdb/transactions"
}
Axios(config_post).then(function (response) {
console.log("Got a response from GraphDB ");
console.log(response.headers);
})

Answer 1

As Damyan mentioned, you don't need to start a transaction to upload a file. You can do something like:
curl -X POST -H "Content-Type: application/x-trig" --data-binary '#test_data.trig' 'http://localhost:7200/repositories/test/statements'
or
curl -X POST -H "Content-Type: application/x-trig" -T test_data.trig 'http://localhost:7200/repositories/test/statements'