public static BatchGetItemResult FromJsonElement(JsonElement json)
{
// TODO: ConsumedCapacity
IReadOnlyList <TableItemCollection> responses;
if (json.TryGetProperty("Responses", out JsonElement responsesNode))
{
var collections = new List <TableItemCollection>();
foreach (var tableEl in responsesNode.EnumerateObject()) // table elements
{
var table = new TableItemCollection(tableEl.Name);
foreach (JsonElement item in tableEl.Value.EnumerateArray())
{
table.Add(AttributeCollection.FromJsonElement(item));
}
collections.Add(table);
}
responses = collections;
}
else
{
responses = Array.Empty <TableItemCollection>();
}
// TODO: UnprocessedKeys
return(new BatchGetItemResult(responses));
}
public static UpdateItemResult FromJsonElement(JsonElement json)
{
ConsumedCapacity? consumedCapacity = null;
AttributeCollection?attributes = null;
if (json.TryGetProperty("ConsumedCapacity", out var consumedCapacityEl))
{
consumedCapacity = ConsumedCapacity.FromJsonElement(consumedCapacityEl);
}
if (json.TryGetProperty("Attributes", out var attributesEl))
{
attributes = AttributeCollection.FromJsonElement(attributesEl);
}
return(new UpdateItemResult(attributes, consumedCapacity));
}
public static GetItemResult FromJsonElement(JsonElement json)
{
AttributeCollection?item = null;
ConsumedCapacity? consumedCapacity = null;
if (json.TryGetProperty("ConsumedCapacity", out var consumedCapacityEl))
{
consumedCapacity = ConsumedCapacity.FromJsonElement(consumedCapacityEl);
}
if (json.TryGetProperty("Item", out var itemEl))
{
item = AttributeCollection.FromJsonElement(itemEl);
}
return(new GetItemResult(item !, consumedCapacity));
}
public static QueryResult FromJsonElement(JsonElement json)
{
ConsumedCapacity? consumedCapacity = null;
AttributeCollection?lastEvaluatedKey = null;
if (json.TryGetProperty("ConsumedCapacity", out JsonElement consumedCapacityEl))
{
consumedCapacity = ConsumedCapacity.FromJsonElement(consumedCapacityEl);
}
if (json.TryGetProperty("LastEvaluatedKey", out JsonElement lastEvaluatedKeyEl))
{
lastEvaluatedKey = AttributeCollection.FromJsonElement(lastEvaluatedKeyEl);
}
AttributeCollection[] items;
if (json.TryGetProperty("Items", out JsonElement itemsEl))
{
items = new AttributeCollection[itemsEl.GetArrayLength()];
int i = 0;
foreach (var itemEl in itemsEl.EnumerateArray())
{
items[i] = AttributeCollection.FromJsonElement(itemEl);
i++;
}
}
else
{
items = Array.Empty <AttributeCollection>();
}
return(new QueryResult(
consumedCapacity: consumedCapacity,
items: items,
lastEvaluatedKey: lastEvaluatedKey,
count: json.GetProperty("Count").GetInt32()
));
}
public static TableRequests FromElementJson(string key, JsonElement batch)
{
var requests = new List <ItemRequest>(batch.GetArrayLength());
foreach (var request in batch.EnumerateArray())
{
/*
* {
* ""PutRequest"": {
* ""Item"": {
* ""name"": { ""S"": ""marcywilliams"" },
* ""ownerId"": { ""N"": ""3033325"" },
* ""type"": { ""N"": ""1"" }
* }
* },
* ""DeleteRequest"": {
* ""Key"": {
* ""name"": { ""S"": ""marcywilliams"" },
* ""ownerId"": { ""N"": ""3033325"" }
* }
* }
* }
*/
if (request.TryGetProperty("PutRequest", out var putRequestNode))
{
var itemAttributes = AttributeCollection.FromJsonElement(putRequestNode.GetProperty("Item"));
requests.Add(new PutRequest(itemAttributes));
}
else if (request.TryGetProperty("DeleteRequest", out var deleteRequestNode))
{
var keyAttributes = AttributeCollection.FromJsonElement(deleteRequestNode.GetProperty("Key"));
requests.Add(new DeleteRequest(keyAttributes));
}
}
return(new TableRequests(key, requests));
}