示例#1
0
        public async Task <string> ReadOrRetrieveAccessToken <ServiceAgentSettings>(ServiceAgentSettings settings) where ServiceAgentSettings : OAuthAgentSettingsBase
        {
            var cacheKey = $"{settings.OAuthClientId}{settings.OAuthClientSecret}{settings.OAuthScope}{settings.OAuthTokenEndpoint}";

            var(succeeded, tokenReplyResult) = await _cacher.GetFromCacheAsync <TokenReply>(cacheKey).ConfigureAwait(false);

            if (!succeeded || tokenReplyResult == null)
            {
                tokenReplyResult = await RetrieveTokenReply(settings.OAuthClientId, settings.OAuthClientSecret, settings.OAuthScope, settings.OAuthTokenEndpoint);

                if (tokenReplyResult == null)
                {
                    throw new Exception($"Unable to retrieve token reply for agent with key {cacheKey}");
                }

                int cacheExpiration = CalculateCacheExpiration(tokenReplyResult);

                if (cacheExpiration > 0)
                {
                    await _cacher.SaveToCacheAsync(cacheKey, tokenReplyResult);
                }
            }
            return(tokenReplyResult.access_token);
        }