public async Task <IActionResult> GetSnapshotData([FromBody] SnapshotDataRequest request, CancellationToken cancellationToken)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState)); // 400
}
try {
var result = await _historian.ReadSnapshotData(User, request.Tags, cancellationToken).ConfigureAwait(false);
return(Ok(result.ToDictionary(x => x.Key, x => x.Value.ToTagValueDto()))); // 200
}
catch (ArgumentException) {
return(BadRequest()); // 400
}
catch (OperationCanceledException) {
return(StatusCode(204)); // 204
}
catch (SecurityException) {
return(Forbid()); // 403
}
catch (NotSupportedException) {
return(BadRequest()); // 400
}
catch (NotImplementedException) {
return(BadRequest()); // 400
}
}
public Task <IActionResult> GetSnapshotData([FromQuery] string[] tag, CancellationToken cancellationToken)
{
var model = new SnapshotDataRequest()
{
Tags = tag
};
TryValidateModel(model);
return(GetSnapshotData(model, cancellationToken));
}
/// <summary>
/// Reads snapshot values for a set of tags. Authorized using the <c>aika:readtagdata</c>
/// authorization policy.
/// </summary>
/// <param name="request">The snapshot data request.</param>
/// <param name="cancellationToken">The cancellation token for the request.</param>
/// <returns>
/// A task that will return the snapshot values for the tags, indexed by tag name.
/// </returns>
public async Task <IDictionary <string, TagValueDto> > ReadSnapshotValues(SnapshotDataRequest request, CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
const string url = "api/tags/data/snapshot";
var response = await _client.PostAsJsonAsync(url, request, cancellationToken).ConfigureAwait(false);
response.EnsureSuccessStatusCode();
return(await response.Content.ReadAsJsonAsync <IDictionary <string, TagValueDto> >(cancellationToken).ConfigureAwait(false));
}