How can I prevent SQL injection attacks in Go while using "database/sql"?
This solves the single value field problem because you can remove the quotes, but I can't do that filtering a JSON/JSONB field, like in the following because the $1
is considered a string:
`SELECT * FROM foo WHERE bar @> '{"baz": "$1"}'`
The following works but it's prone to SQL Injection:
`SELECT * FROM foo WHERE bar @> '{"baz": "` + "qux" + `"}'`
How do I solve this?
EDITED after @mkopriva's comment:
How would I build this json [{"foo": $1}]
with the jsonb_*
functions? Tried the below without success:
jsonb_build_array(0, jsonb_build_object('foo', $1::text))::jsonb
There's no sql error. The filter just doesn't work. There's a way that I can check the builded sql? I'm using the database/sql
native lib.