# Pre-request Scriptconst jwtToken = pm.collectionVariables.get("jwt_token");if (jwtToken) return; pm.sendRequest( { "url": "[로그인 URL]", // 토큰 리턴 "method": "POST", "header": { "Content-Type": "application/json" }, "body": { "mode": "raw", "raw": JSON.stringify({ "id": "111222333", "pwd": "444555666" }), "options": { "raw": { "language": "json" } } } }, (err, res) => { pm.collectionVariables.set(..