Biruntha/module-amazonrekn

Ballerina Amazon Rekognition Connector

This connector allows to use the Amazon Rekognition service through Ballerina. The following section provide you the details on connector operations.

Compatibility

Ballerina Language Version
0.990.3

The following sections provide you with information on how to use the Amazon Rekognition Service Connector.

• Contribute To Develop
• Working with Amazon Rekognition Service Connector actions
• Sample

Contribute To develop

Clone the repository by running the following command

git clone https://github.com/wso2-ballerina/module-amazonrekn

Working with Amazon Rekognition Service Connector

First, import the wso2/amazonrekn module into the Ballerina project.

import wso2/amazonrekn;

In order for you to use the Amazon Rekognition Service Connector, first you need to create an Amazon Rekognition Service Connector client.

amazonrekn:Configuration config = {
    accessKey: config:getAsString("ACCESS_KEY"),
    secretKey: config:getAsString("SECRET_KEY")
};

amazonrekn:Client blobClient = new(config);

Sample

import ballerina/config;
import ballerina/io;
import wso2/amazonrekn;
import wso2/amazoncommons;

amazonrekn:Configuration config = {
    accessKey: config:getAsString("ACCESS_KEY"),
    secretKey: config:getAsString("SECRET_KEY")
};

amazonrekn:Client reknClient = new(config);

public function main() {
    byte[] data = readFile("input.jpeg");
    var result1 = reknClient->detectLabels(untaint data);
    io:println(result1);

    amazoncommons:S3Object s3obj = { bucket: "mybucket", name: "input.jpeg" };
    var result2 = reknClient->detectText(s3obj);
    io:println(result2);
}

function readFile(string path) returns byte[] {
    io:ReadableByteChannel ch = io:openReadableFile(path);
    byte[] output = [];
    int i = 0;
    while (true) {
        (byte[], int) (buff, n) = check ch.read(1000);
        if (n == 0) {
            break;
        }
        foreach byte b in buff {
            output[i] = b;
            i += 1;
        }
    }
    _ = ch.close();
    return output;
}