Processing API in Golang Using Query?

Question

I am trying to process a song using API.I have tried using a specific URL in http.get and further unmarshalling the data but the only element returned in the console is {}. Any help to send me in the right direction is appreciated.

Edit: here is some code. I have this in my main file.

var data [2]Data

if err != nil {
    log.Fatal(err)
}

defer response.Body.Close()
if response.StatusCode != 200 {
    log.Fatal("Didn't get 200")
}

rawData, err := ioutil.ReadAll(response.Body)
if err != nil {
    log.Fatal(err)
}

json.Unmarshal(rawData, &data)

fmt.Println(data[0])

I have a struct created in a separate file for JSON tags/keys.

type Data struct {
    SongID          string `json:id`
    Name            string `json:name`
}

Can you show us some of your code so that we can help with specific issues within it? Thx. — Software Engineer
– Software Engineer, Commented Sep 26, 2020 at 19:00
@SoftwareEngineer I have edited with some of the code I have so far. Thanks! — AcademicCoder11
– AcademicCoder11, Commented Sep 26, 2020 at 19:09
json.Unmarshal returns an error value, you should check if it's nil and if it isn't it will tell you what the problem is which will also be the reason you're seeing {}. — mkopriva
– mkopriva, Commented Sep 26, 2020 at 20:21
... actually in this case it probably won't say much because your target type [2]SongData does not seem to match the json structure that is returned from that url. You need to pass a type to json.Unmarshal that matches the json structurally. — mkopriva
– mkopriva, Commented Sep 26, 2020 at 20:26

Software Engineer · Accepted Answer · 2020-09-28 18:07:28Z

1

 type data struct {
   Error    bool `json:"error"`
   Response struct {
    Results []struct {
        ID   int    `json:"id"`
        Name string `json:"name"`
    } `json:"results"`
  } `json:"response"`
}

This should be the data structure.

Use curl to request

curl https://searchly.asuarez.dev/api/v1/song/search?query=hello
use https://mholt.github.io/json-to-go/ to convert the JSON response to Golang struct.

edited Sep 28, 2020 at 18:07

Software Engineer

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answered Sep 26, 2020 at 20:28

ZAky

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1 Comment

ZAky Over a year ago

Your code is okay, just replace the data struct. Instead of using curl just print rawData as string and convert it to struct.

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