private Response processRequest(DynamicDictionary parameters, RequestDetails requestDetails,
Func<DataModel, DataModel> dataStorageDelegate, Func<DataModel, RequestDetails, Response> responseDelegate)
{
var reqDataModel = new DataModel() { Path = Request.Url };
var response = new Response();
//If request have parameters - construct the Path and jsonQuery for the Model (i.e. "/movies/{id}")
if (requestDetails.Parameters != null && requestDetails.Parameters.Any())
{
string lastParName = requestDetails.Parameters.Last(); //we are assuming that the last parameter in request path is an "id"
string lastParValue = parameters[lastParName].Value; //and we can use this parameter name and value to compose json filter for our dataStorage
reqDataModel.Path = reqDataModel.Path.Remove(reqDataModel.Path.Length - lastParValue.Length); //remove last parameter value from the "/movies/101" => "/movies/", where 101 is some "id"
reqDataModel.jsonQuery = $"{{\"{lastParName}\":\"{lastParValue}\"}}"; // {"lastParameterName":"lastParameterValue"}
}
JObject reqBobyJsonObj = null;
string reqBodyJsonStr = Request.Body.AsString();
//if request body contains Json - we need to validate (try to parse) this Json first
if (!String.IsNullOrEmpty(reqBodyJsonStr))
{
try
{
reqBobyJsonObj = JObject.Parse(reqBodyJsonStr);
}
catch (Exception ex)
{
logger.Error($"Incorrect JSON in {requestDetails.Verb.ToUpper()} request!");
logger.Error(ex);
response = "Bad Request";
response.StatusCode = HttpStatusCode.BadRequest;
return response;
}
}
//If request have an associated schema - we need to validate received Json (from request body) with this schema
if (!String.IsNullOrEmpty(requestDetails.Schema)) {
JSchema jsonSchema = JSchema.Parse(requestDetails.Schema);
if (!reqBobyJsonObj?.IsValid(jsonSchema) ?? true)
{
logger.Error($"JSON in {requestDetails.Verb.ToUpper()} request does not match the RAML schema!!!");
response.StatusCode = HttpStatusCode.UnprocessableEntity;
return response;
}
}
reqDataModel.jsonModel = reqBodyJsonStr;
var resultingDataModel = dataStorageDelegate(reqDataModel);
response = responseDelegate(resultingDataModel, requestDetails);
return response;
}
public IList<DataModel> GetMany(DataModel model) //TO DO
{
var records = getMongoCollection(model).Find(model.getOrFilter()).ToList();
List<DataModel> result = new List<DataModel>();
foreach (var record in records)
{
record.Remove("_id");
result.Add(new DataModel() { jsonModel = record.ToJson(new JsonWriterSettings { OutputMode = JsonOutputMode.Strict }), operationSuccesfull = true });
}
return result.AsReadOnly();
}
public DataModel Get(DataModel model)
{
var resultModel = new DataModel() { operationSuccesfull = false };
var record = GetBsonDoc(model);
if (record != null)
{
record.Remove("_id");
resultModel.jsonModel = record.ToJson(new JsonWriterSettings { OutputMode = JsonOutputMode.Strict});
resultModel.operationSuccesfull = true;
}
return resultModel;
}
private Response processResp(DataModel resultModel, RequestDetails requestDetails)
{
var response = new Response();
if (resultModel.operationSuccesfull)
{
response.StatusCode = (HttpStatusCode)requestDetails.SuccessResponseCode;
if (!String.IsNullOrEmpty(resultModel.jsonModel))
{
response = resultModel.jsonModel;
response.ContentType = "application/json";
}
}
else
{
response.StatusCode = HttpStatusCode.NotFound;
};
return response;
}
public DataModel Update(DataModel model)
{
var resultModel = new DataModel() { operationSuccesfull = false };
var originalDoc = GetBsonDoc(model);
if (originalDoc != null)
{
var replacementDoc = originalDoc.Merge(model.getBsonModel(), true);
var replacementResult = getMongoCollection(model).ReplaceOne(model.getOrFilter(), replacementDoc);
if (replacementResult.ModifiedCount == 1)
{
resultModel.operationSuccesfull = true;
replacementDoc.Remove("_id");
resultModel.jsonModel = replacementDoc.ToJson(new JsonWriterSettings { OutputMode = JsonOutputMode.Strict });
}
}
return resultModel;
}
public DataModel Drop(DataModel model) //TO DO
{
database.DropCollection(model.getCollectionName());
return new DataModel() { operationSuccesfull = true };
}
public DataModel Delete(DataModel model)
{
var result = getMongoCollection(model).DeleteOne(model.getOrFilter());
return new DataModel() { operationSuccesfull = (result.DeletedCount == 1) };
}
/// <summary> /// MongoDb -> Find with Filter defined in DataModel and return BsonDocument /// </summary> private BsonDocument GetBsonDoc(DataModel model) => getMongoCollection(model).Find(model.getOrFilter()).ToList().FirstOrDefault();
public DataModel Insert(DataModel model)
{
getMongoCollection(model).InsertOne(model.getBsonModel());
return new DataModel() { operationSuccesfull = true , jsonModel = model.jsonModel };
}
private IMongoCollection<BsonDocument> getMongoCollection(DataModel model) => database.GetCollection<BsonDocument>(model.getCollectionName());
