public async Task <string> Create(CMMNExecutionContext executionContext, CaseEltInstance humanTaskElt, CancellationToken token)
{
using (var httpClient = _httpClientFactory.Build())
{
var operationParameters = new JObject
{
{ "nameIdentifier", executionContext.Instance.NameIdentifier }
};
var inputParameters = humanTaskElt.GetInputParameters();
if (inputParameters != null && inputParameters.Any())
{
foreach (var inputParameter in inputParameters)
{
if (string.IsNullOrWhiteSpace(inputParameter.Value))
{
continue;
}
var value = ExpressionParser.GetString(inputParameter.Value, executionContext.Instance.ExecutionContext);
operationParameters.Add(inputParameter.Key, value);
}
}
var tokenResponse = await httpClient.RequestClientCredentialsTokenAsync(new ClientCredentialsTokenRequest
{
Address = _options.OAuthTokenEndpoint,
ClientId = _options.ClientId,
ClientSecret = _options.ClientSecret,
Scope = "create_humantaskinstance"
}, token);
if (tokenResponse.IsError)
{
throw new CMMNProcessorException(tokenResponse.Error);
}
var jArr = new JArray();
var link = _options.CallbackUrl.Replace("{id}", executionContext.Instance.AggregateId);
link = link.Replace("{eltId}", humanTaskElt.Id);
jArr.Add(link);
var obj = new JObject
{
{ "humanTaskName", humanTaskElt.GetFormId() },
{ "operationParameters", operationParameters },
{ "callbackUrls", jArr }
};
var content = new StringContent(obj.ToString(), Encoding.UTF8, "application/json");
var request = new HttpRequestMessage
{
Method = HttpMethod.Post,
Content = content,
RequestUri = new Uri($"{_options.WSHumanTaskAPI}/humantaskinstances")
};
request.Headers.Add("Authorization", $"Bearer {tokenResponse.AccessToken}");
var httpResult = await httpClient.SendAsync(request, token);
var str = await httpResult.Content.ReadAsStringAsync();
var o = JObject.Parse(str);
var humanTaskInstancId = o["id"].ToString();
return(humanTaskInstancId);
}
}