i'm trying to make a app thats lets me query the database from discogs .
According to the Api documentation i can do this with just a token. so i registered and got a user token.
now when i use postman with https://api.discogs.com/database/search?release_title=nevermind&artist=nirvana&per_page=3&page=1&token=<my_user_token>
i receive the json like i would expect.
but when i make a httpclient in c# with the token
public string token = <my_user_token>;
public static HttpClient client { get; set; }
public static async Task InitilizeClient()
{
await GetAccesToken();
}
private static async Task GetAccesToken()
{
client = new HttpClient();
client.DefaultRequestHeaders.Accept.Clear();
client.BaseAddress = new Uri(@"https://api.discogs.com");
//client.DefaultRequestHeaders.Authorization=new AuthenticationHeaderValue("Discogs", "token="+token);
client.DefaultRequestHeaders.TryAddWithoutValidation("Authorization","Discogs token=" + token);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
}
and then use the client like this
public static async Task QueryDataBaseAsync(string query)
{
if (query == null)
{
throw new Exception("query is empty");
}
string url = "";
url = @"https://api.discogs.com/database/search?release_title="+query;
if (client == null)
{
await InitilizeClient();
}
using (HttpResponseMessage response = await client.GetAsync(url))
{
if (response.IsSuccessStatusCode)
{
}
else
{
throw new Exception(response.ReasonPhrase + " \n" + response.RequestMessage.ToString());
}
}
}
then i always get a ReasonPhrase "forbidden","statuscode: 403"
when i put a breakpoint on my HttpResponseMessage response
i can see that under "headers"=>"responsemessage"=>"headers"=>"authorization" it has my token.
what am i doing wrong?
ps, sorry about the bad english, its not my motherlangue
ps2, i'm new at programming so i would appreciate it if you could eli5 what i did wrong
You may need to provide user-agent in the headers. Something along these lines:
client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36");
like this:
public class DiscConsumer
{
//https://www.discogs.com/developers#page:authentication,header:authentication-discogs-auth-flow
//curl "https://api.discogs.com/database/search?q=Nirvana" -H "Authorization: Discogs key=foo123, secret=bar456"
private const string _urlQuery = "https://api.discogs.com/database/search?q={query}";
private const string _key = "<....your key....>";
private const string _secret = "<....your secret...>";
private System.Net.Http.HttpClient _httpClient;
public async Task InitilizeClient()
{
//ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
var sslhandler = new HttpClientHandler()
{
//...in System.Security.Authentication.SslProtocols
SslProtocols = SslProtocols.Tls12 | SslProtocols.Tls11 | SslProtocols.Tls
};
_httpClient = new System.Net.Http.HttpClient(sslhandler);
string authorization = $"Discogs key={_key}, secret={_secret}";
_httpClient.DefaultRequestHeaders.Add("Authorization", authorization);
_httpClient.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36");
}
public async Task QueryDataBaseAsync(string query)
{
if (String.IsNullOrWhiteSpace( query ))
{
throw new Exception("query is empty");
}
string url = "";
url = _urlQuery.Replace("{query}", query);
if (_httpClient == null)
{
await InitilizeClient();
}
using (HttpResponseMessage response = await _httpClient.GetAsync(url))
{
if (response.IsSuccessStatusCode)
{
string s = await response.Content.ReadAsStringAsync();
Console.WriteLine(s);
}
else
{
throw new Exception(response.ReasonPhrase + " \n" + response.RequestMessage.ToString());
}
}
}
}
Per https://www.discogs.com/developers#page:authentication,header:authentication-discogs-auth-flow you can supply key+secret on every request along with search.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.