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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | 13x 82x 82x 82x 82x 82x 82x 82x 82x 102x 102x 82x 1x 1x 1x 82x 125x 125x 125x 125x 125x 125x 125x 125x 125x 125x 125x 125x 125x 94x 94x 31x 82x 31x 31x 17x 14x 31x | import { DocumentClient } from 'aws-sdk/clients/dynamodb';
import { TransactionQueryInput, Transaction } from '../types.d';
import { DynamodbService } from '../common_services';
/**
* Transaction db
* used to access transaction database table
*/
export class TransactionDb {
type = 'transaction';
constructor(
private readonly tableName: string,
private readonly dynamodbService: DynamodbService,
private readonly transactionGsi: string,
private readonly accessTokenGsi: string,
private readonly entityUuidGsi: string,
private readonly siteUuidGsi: string,
) {}
getTransaction = (
transactionUuid: string,
): Promise<DocumentClient.QueryOutput> => {
const params: DocumentClient.QueryInput = {
TableName: this.tableName,
IndexName: this.transactionGsi,
KeyConditionExpression: 'transactionUuid = :transactionUuid',
ExpressionAttributeValues: {
':transactionUuid': transactionUuid,
},
};
return this.dynamodbService.documentClient.query(params).promise();
};
saveTransaction = async (
id: string,
transactionUuid: string,
type: string,
trxn: Transaction,
): Promise<DocumentClient.PutItemOutput> => {
const params: DocumentClient.PutItemInput = {
TableName: this.tableName,
Item: {
...trxn,
id,
transactionUuid,
type,
},
};
return this.dynamodbService.documentClient.put(params).promise();
};
getTransactionsMultiQueries = async (
limit: number,
timestampFilter: string,
entityUuid: string,
nextToken?: DocumentClient.Key,
filter?: string,
prev?: DocumentClient.QueryOutput,
): Promise<DocumentClient.QueryOutput> => {
let values: { [key: string]: string } = {};
const attributeNames = { '#type': 'type' };
let keyExpression = '';
Eif (entityUuid) {
values = { ':entityUuid': entityUuid };
keyExpression = 'entityUuid = :entityUuid';
}
const params: DocumentClient.QueryInput = {
TableName: this.tableName,
IndexName: this.entityUuidGsi,
ExpressionAttributeValues: values,
KeyConditionExpression: keyExpression,
ExpressionAttributeNames: attributeNames,
Limit: limit,
ScanIndexForward: false,
};
const queryOutput = await this.dynamodbService.getQueryOutput(
params,
this.type,
timestampFilter,
filter,
nextToken,
);
let combinedItems = prev && prev.Items ? prev.Items : [];
combinedItems = queryOutput.Items
? [...combinedItems, ...queryOutput.Items]
: combinedItems;
const outputItems = {
Items: combinedItems,
Count: combinedItems.length,
LastEvaluatedKey: queryOutput.LastEvaluatedKey,
};
if (
typeof queryOutput.Items !== 'undefined' &&
queryOutput.Items.length < limit &&
queryOutput.LastEvaluatedKey
) {
console.log(`try another query ${combinedItems.length} ${limit}`);
return this.getTransactionsMultiQueries(
limit - queryOutput.Items.length,
timestampFilter,
entityUuid,
queryOutput.LastEvaluatedKey,
filter,
outputItems,
);
}
return outputItems;
};
getTransactions = (
event: TransactionQueryInput,
entityUuid: string,
): Promise<DocumentClient.QueryOutput> => {
const {
limit,
nextToken,
filter,
timestampFilter,
} = event;
let tFilter: string;
if (!timestampFilter) {
tFilter = this.dynamodbService.utils.createLastYearQuery();
} else {
tFilter = timestampFilter;
}
return this.getTransactionsMultiQueries(
limit,
tFilter,
entityUuid,
nextToken,
filter,
);
};
}
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