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Connect Elasticsearch and Supabase CSV file in our serverless environment

Use this template to Read rows from Elasticsearch table using them to create CSV file entries in Supabase bucket.

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Read rows from Elasticsearch table

Used integrations:
class ElasticsearchSourceSelect {
async init() {
// TODO: Create your clickhouse credential
// More info at https://yepcode.io/docs/integrations/elasticsearch/#credential-configuration
this.elasticsearch = yepcode.integration.elasticsearch(
"your-elasticsearch-credential-name"
);
}

async fetch(publish, done) {
// TODO: customize your query
const sql = "SELECT * FROM your_table_name";

const result = await this.elasticsearch.sql.query({
query: sql,
});

result.rows.map((row) => {
const item = {};
for (let i = 0; i < row.length; i++) {
item[result.columns[i].name] = row[i];
}
publish(item);
});
done();
}

async close() {}
}

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Create CSV file entries in Supabase bucket

Used integrations:
class SupabaseTargetUploadCsv {
async init() {
// TODO: Create your supabase credential
// More info at https://yepcode.io/docs/integrations/supabase/#credential-configuration
this.supabase = yepcode.integration.supabase(
"your-supabase-credential-name"
);

this.items = [];
}

async consume(item) {
// TODO: Customize your csv row
const csvRow = [item.id, item.name];
this.items.push(csvRow);
}

async close() {
try {
// Transform items to CSV entries
const csvFileContent = csv.stringify(this.items, {
delimiter: ",",
});
// TODO: adapt bucket and files management
// You may check the full API documentation at:
// Check docs at https://supabase.com/docs/reference/javascript/storage-from-upload
const {
data,
error
} = await this.supabase.storage
.from("your-bucket-name")
.upload(`your-new-file.csv`, csvFileContent, {
contentType: "text/csv",
});

if (error) {
throw error;
}
} catch (error) {
console.error(`Error ending upload`, error);
}
}
}

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