@sogelink-research/pgrest-client
v1.4.0
Published
Simple JS client for PGRest
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@sogelink-research/pgrest-client
@sogelink-research/pgrest-client is a JavaScript client library for interacting with PGRest servers.
Installation
Using npm
To install the package via npm:
npm install @sogelink-research/pgrest-clientUsing jsDelivr
To use the package directly in the browser via jsDelivr, include the following script tag in your HTML file:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PGRestClient Example</title>
</head>
<body>
<script type="module">
import { PGRestClient } from 'https://cdn.jsdelivr.net/npm/@sogelink-research/pgrest-client@latest/dist/pgrest-client.esm.js';
const client = new PGRestClient('https://example.com', 'your-client-id', 'your-client-secret');
async function fetchData() {
try {
const response = await client.query('SELECT * FROM table');
console.log(response);
} catch (error) {
console.error('Error:', error);
}
}
fetchData();
</script>
</body>
</html>Usage
Constructor
Create an instance of PGRestClient with the following constructor:
const client = new PGRestClient(url, clientID, clientSecret, [connection]);- url: The URL to the PGRest server.
- clientID: The client ID for authentication.
- clientSecret: The client secret for authentication.
- connection (optional): The name of the connection to use. Defaults to "default".
query Method
The query method executes a query against the server:
client.query(query, [options])Parameters
- query: A string representing the query to execute.
- options (optional): An object with the following properties:
- connection: A string specifying the connection to use. Defaults to the client's connection.
- format: The response format. Defaults to "json". Options include:
- "json"
- "jsonDataArray"
- "csv"
- "arrow"
- "parquet"
- encoding: The response encoding. Defaults to "gzip, br".
- executionTimeFormatter: A function to format the execution time. Defaults to the client's default formatter.
Returns
A promise that resolves to the server's response in the specified format. Throws an error object when result is not ok.
Example usage
import { PGRestClient } from '@sogelink-research/pgrest-client';
const client = new PGRestClient('https://example.com', 'your-client-id', 'your-client-secret');
function logError(error) {
console.log("--------------------------------");
console.log(`${error.status} - ${error.statusText}`);
console.log("--------------------------------");
console.log(`Message: ${error.error}`);
if(error.details) {
console.log(`Details: ${error.details}`);
}
}
// Example 1: Execute a query in JSON format
async function fetchData() {
try {
const response = await client.query('SELECT * FROM table');
console.table(result.data);
} catch (error) {
logError(error);
}
}
fetchData();
// Example 2: Execute a query in CSV format
async function fetchCSVData() {
try {
const response = await client.query('SELECT * FROM table', { format: 'csv' });
console.log(response);
} catch (error) {
logError(error);
}
}
fetchCSVData();