dynamodel-client
Version:
Amazon's DynamoDB client to manage multiple models per table.
58 lines • 2.48 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PutRequest = void 0;
const attributeExpressions_1 = require("../expression/attributeExpressions");
const model_1 = require("../model");
const schema_1 = require("../schema");
const lib_dynamodb_1 = require("@aws-sdk/lib-dynamodb");
class PutRequest {
constructor(documentClient, params, stage) {
this.documentClient = documentClient;
this.stage = stage;
this.table = params.table;
this.returnConsumedCapacity = params.returnConsumedCapacity;
this.returnItemCollectionMetrics = params.returnItemCollectionMetrics;
this.returnValues = params.returnValues;
this.attributes = new attributeExpressions_1.AttributeExpressions();
const context = this.buildExpressionContext(this.attributes, this.table);
this.conditionExpression = params.condition?.serialize(context);
this.ModelConstructor = this.table.getModelConstructor(params.item);
const model = (0, model_1.isModel)(params.item) ? params.item : new this.ModelConstructor(params.item);
const schema = (0, schema_1.getSafeSchema)(model);
this.item = model.toJSON();
schema.validate(this.item);
}
async execute() {
const response = await this.sendRequest();
const model = response.Attributes && new this.ModelConstructor(response.Attributes);
const consumedCapacity = response.ConsumedCapacity;
const itemCollectionMetrics = response.ItemCollectionMetrics;
return {
consumedCapacity,
itemCollectionMetrics,
model,
response,
};
}
sendRequest() {
const awsParams = {
ConditionExpression: this.conditionExpression,
ExpressionAttributeNames: this.attributes.names,
ExpressionAttributeValues: this.attributes.values,
Item: this.item,
ReturnValues: this.returnValues,
ReturnConsumedCapacity: this.returnConsumedCapacity,
ReturnItemCollectionMetrics: this.returnItemCollectionMetrics,
TableName: this.table.getName(this.stage),
};
return this.documentClient.send(new lib_dynamodb_1.PutCommand(awsParams));
}
buildExpressionContext(attributes, table) {
return {
attributes,
table,
};
}
}
exports.PutRequest = PutRequest;
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