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post( url, [body], [params] )

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ParameterTypeDescription
urlstringRequest URL (e.g. http://example.com).
bodystring / object / ArrayBufferRequest body; objects will be x-www-form-urlencoded.
params (optional)objectParams object containing additional request parameters

Returns

TypeDescription
ResponseHTTP Response object.

Example

import http from 'k6/http';
const url = 'https://httpbin.test.k6.io/post';
const logoBin = open('./logo.png', 'b');
export default function () {
let data = { name: 'Bert' };
// Using a JSON string as body
let res = http.post(url, JSON.stringify(data), {
headers: { 'Content-Type': 'application/json' },
});
console.log(res.json().json.name); // Bert
// Using an object as body, the headers will automatically include
// 'Content-Type: application/x-www-form-urlencoded'.
res = http.post(url, data);
console.log(res.json().form.name); // Bert
// Using a binary array as body. Make sure to open() the file as binary
// (with the 'b' argument).
http.post(url, logoBin, { headers: { 'Content-Type': 'image/png' } });
// Using an ArrayBuffer as body. Make sure to pass the underlying ArrayBuffer
// instance to http.post(), and not the TypedArray view.
data = new Uint8Array([104, 101, 108, 108, 111]);
http.post(url, data.buffer, { headers: { 'Content-Type': 'image/png' } });
}