private async Task <string> SignAndEncodePresentationRequestBody(
HttpClient client,
V1_GetDidResponse did,
V1_CreatePresentationRequestResponse v1CreatePresentationRequestResponse)
{
var createDidUrl = $"https://{_mattrConfiguration.TenantSubdomain}/v1/messaging/sign";
object didUrlArray;
did.DidDocument.AdditionalProperties.TryGetValue("authentication", out didUrlArray);
var didUrl = didUrlArray.ToString().Split("\"")[1];
var payload = new MattrOpenApiClient.SignMessageRequest
{
DidUrl = didUrl,
Payload = v1CreatePresentationRequestResponse.Request
};
var payloadJson = JsonConvert.SerializeObject(payload);
var uri = new Uri(createDidUrl);
using (var content = new StringContentWithoutCharset(payloadJson, "application/json"))
{
var response = await client.PostAsync(uri, content);
if (response.StatusCode == System.Net.HttpStatusCode.OK)
{
var result = await response.Content.ReadAsStringAsync();
return(result);
}
var error = await response.Content.ReadAsStringAsync();
}
return(null);
}
private async Task <V1_CreatePresentationRequestResponse> InvokePresentationRequest(
HttpClient client,
string didId,
string templateId,
string challenge,
string callbackUrl)
{
var createDidUrl = $"https://{_mattrConfiguration.TenantSubdomain}/v1/presentations/requests";
var payload = new MattrOpenApiClient.V1_CreatePresentationRequestRequest
{
Did = didId,
TemplateId = templateId,
Challenge = challenge,
CallbackUrl = new Uri(callbackUrl),
ExpiresTime = MATTR_EPOCH_EXPIRES_TIME_VERIFIY // Epoch time
};
var payloadJson = JsonConvert.SerializeObject(payload);
var uri = new Uri(createDidUrl);
using (var content = new StringContentWithoutCharset(payloadJson, "application/json"))
{
var response = await client.PostAsync(uri, content);
if (response.StatusCode == System.Net.HttpStatusCode.Created)
{
var v1CreatePresentationRequestResponse = JsonConvert.DeserializeObject <V1_CreatePresentationRequestResponse>(
await response.Content.ReadAsStringAsync());
return(v1CreatePresentationRequestResponse);
}
var error = await response.Content.ReadAsStringAsync();
}
return(null);
}
private async Task <V1_PresentationTemplateResponse> CreateMattrPresentationTemplate(
HttpClient client, string didId)
{
// create presentation, post to presentations templates api
// https://learn.mattr.global/tutorials/verify/presentation-request-template
var createPresentationsTemplatesUrl = $"https://{_mattrConfiguration.TenantSubdomain}/v1/presentations/templates";
var additionalProperties = new Dictionary <string, object>();
additionalProperties.Add("type", "QueryByExample");
additionalProperties.Add("credentialQuery", new List <CredentialQuery> {
new CredentialQuery
{
Reason = "Please provide your driving license",
Required = true,
Example = new Example
{
Context = new List <object> {
"https://schema.org"
},
Type = "VerifiableCredential",
TrustedIssuer = new List <TrustedIssuer2>
{
new TrustedIssuer2
{
Required = true,
Issuer = didId // DID use to create the oidc
}
}
}
}
});
var payload = new MattrOpenApiClient.V1_CreatePresentationTemplate
{
Domain = _mattrConfiguration.TenantSubdomain,
Name = "certificate-presentation",
Query = new List <Query>
{
new Query
{
AdditionalProperties = additionalProperties
}
}
};
var payloadJson = JsonConvert.SerializeObject(payload);
var uri = new Uri(createPresentationsTemplatesUrl);
using (var content = new StringContentWithoutCharset(payloadJson, "application/json"))
{
var presentationTemplateResponse = await client.PostAsync(uri, content);
if (presentationTemplateResponse.StatusCode == System.Net.HttpStatusCode.Created)
{
var v1PresentationTemplateResponse = JsonConvert
.DeserializeObject <MattrOpenApiClient.V1_PresentationTemplateResponse>(
await presentationTemplateResponse.Content.ReadAsStringAsync());
return(v1PresentationTemplateResponse);
}
var error = await presentationTemplateResponse.Content.ReadAsStringAsync();
}
throw new Exception("whoops something went wrong");
}
