/// <summary>
/// Returns the canonicalized resource path for the service endpoint
/// </summary>
/// <param name="endpointUri">Endpoint to the service/resource</param>
/// <returns>Canonicalized resource path for the endpoint</returns>
protected string CanonicalResourcePath(Uri endpointUri)
{
if (string.IsNullOrEmpty(endpointUri.AbsolutePath))
{
return("/");
}
// encode the path per RFC3986
return(HttpHelpers.UrlEncode(endpointUri.AbsolutePath, true));
}
public async Task <T> Request <T>(string endpoint, HttpMethod method, string body = null)
{
if (this.TemporaryCredentials == null || DateTime.UtcNow > this.TemporaryCredentials.Expiration)
{
this.TemporaryCredentials = await this.GetTemporaryCredentials();
}
var httpMethod = method.ToString().ToUpper();
var uri = new Uri($"https://{_baseUrl}/v3/{endpoint}");
var headers = new Dictionary <string, string>
{
{ "content-type", "application/json" },
{ "x-amz-security-token", this.TemporaryCredentials.SessionToken },
{ "x-api-key", _apiKey }
};
var bodyHash = AWS4SignerBase.EMPTY_BODY_SHA256;
if (body != null)
{
var encodedJsonBytes = Encoding.UTF8.GetBytes(body);
bodyHash = ComputeSHA256Hash(encodedJsonBytes);
}
//Use the AWS4 signer to generate the signer and sign the request
var signer = new AWS4SignerForAuthorizationHeader
{
EndpointUri = uri,
HttpMethod = httpMethod,
Service = "execute-api",
Region = "us-east-1"
};
var authorization = signer.ComputeSignature(headers, "", bodyHash, this.TemporaryCredentials.AccessKey, this.TemporaryCredentials.SecretKey);
headers.Add("Authorization", authorization);
var response = HttpHelpers.InvokeHttpRequest(uri, httpMethod, headers, body);
if (response != null)
{
return(JsonConvert.DeserializeObject <T>(response));
}
return(default(T));
}
