无法获得access_token

Question

I get my body with access_token but I want to use the only access_token from the body. But give me access_token is undefined

request(options, function (error, response, body) {
        if (error) throw new Error(error);
        console.log(body.access_token);
}

Answer 1

There are some reasons that could make this issue.

1. If your option doesn't have json: true like this:

    request({ uri: 'https://jsonplaceholder.typicode.com/todos/1' }, (error, response, body) => { if (error) throw new Error(error); console.log(typeof body) //string }) 

   So that you can put json: true to the option, body will be ojbect . The code will look like this:

    request({ uri: 'https://jsonplaceholder.typicode.com/todos/1', json: true }, (error, response, body) => { if (error) throw new Error(error); console.log(typeof body) //object }) 

2. If you set up option with json: true and the body still is a string. I think your API might response a wrong format. Like you commented above:

{ "access_token":"1231231313123312", "token_type":"Bearer", "expires_in":3600, } It may be due to the last comma which leads to couldn't parse your response to an object.