读取 JavaScript 中的数据并将其存储在 PostgreSQL 数据库表中

Question

I am getting a data from device in the HEX format like below:

<Buffer 00 cc>

I need to read the same in TEXT format and store the value in Database. I am using PostgreSQL as database to store the data.

Below is the error message I am getting while processing it to the Database.

error: invalid message format
at Connection.parseE (/var/www/html/project/collection/node_modules/pg/lib/connection.js:614:13)
at Connection.parseMessage (/var/www/html/project/collection/node_modules/pg/lib/connection.js:413:19)
at Socket.<anonymous> (/var/www/html/project/collection/node_modules/pg/lib/connection.js:129:22)
at Socket.emit (events.js:182:13)

Please let me how to rectify this.

Answer 1

If you're dealing with a buffer that contains bytes of text data, you can try to convert the buffer to a string, which you can then pass to your db-call. Consider this simple example:

const responseBuffer = await someService.getData();
const contentString = responseBuffer.toString('utf8'); // you need to make sure the encoding is correct
await dbService.query(buildQuery(contentString), ...);