Node fetch recive a ReadableStream and recive a incomplete response

i making a request Node fetch recive a ReadableStream and recive a incomplete response.

Request:

`static async postData(url = "") {
    // Default options are marked with *
    const response = await fetch(url, {
      method: "POST", // *GET, POST, PUT, DELETE, etc.
      mode: "same-origin", // no-cors, *cors, same-origin
      cache: "default", // *default, no-cache, reload, force-cache, only-if-cached
      credentials: "same-origin", // include, *same-origin, omit
      headers: {
        "Content-Type": "application/json",
        // 'Content-Type': 'application/x-www-form-urlencoded',
      },
      redirect: "follow", // manual, *follow, error
      referrerPolicy: "no-referrer", // no-referrer, *no-referrer-when-downgrade, origin, origin-when-cross-origin, same-origin, strict-origin, strict-origin-when-cross-origin, unsafe-url
      //body: JSON.stringify(dados), // body data type must match "Content-Type" header
    });
    const stream = await response.body?.getReader().read();

    let jsonBuffer = Buffer.from(stream?.value!);

    let jsonString = jsonBuffer.toString("utf8");
    console.log(jsonString);
    return JSON.parse(jsonString); // parses JSON response into native JavaScript objects
  }`

Response:
{"retorno":{"status_processamento":"3","status":"OK","pagina":1,"numero_paginas":1,"contatos":[{"contato":{"id":"715461091","codigo":"","nome":"Fabio Moreno","fantasia":"","tipo_pessoa":"F","cpf_cnpj":"","endereco":"","numero":"","complemento":"","bairro":"Vila Medon","cep":"","cidade":"Americana","uf":"SP","email":"[email protected]","fone":"(19) 99924-1665","id_lista_preco":0,"id_vendedor":"0","nome_vendedor":"","s

error:
[1] SyntaxError: Unexpected end of JSON input [1] at JSON.parse (<anonymous>) [1] at TinyERP.postData (file:///home/linkiez/Desktop/Projetos/JCMserver3/dist/services/tinyERP.js:22:21) [1] at process.processTicksAndRejections (node:internal/process/task_queues:95:5) [1] at async aprovarOrcamento (file:///home/linkiez/Desktop/Projetos/JCMserver3/dist/controllers/orcamentoController.js:259:40) [1] nodemon --experimental-specifier-resolution=node -q dist/index.js exited with code SIGINT [0] tsc --watch exited with code SIGINT