Postgres jsonb query for dynamic values

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In the users table I have a jsob column experience with following json structure:

[
    {
        "field": "devops",
        "years": 9
    },
    {
        "field": "backend dev",
        "years": 7
    } 
... // could be N number of objects with different values
]

Business requirement

Client can request for people with experience in any field and with their respective years experience in each

This is an example query

SELECT * FROM users
WHERE
jsonb_path_exists(experience, '$[*] ? (@.field == "devops" && @.years > 5)') and
jsonb_path_exists(experience, '$[*] ? (@.field == "backend dev" && @.years > 5)')
LIMIT 3;

Issue

Lets say if I get a request for

[
  { field: "devops", years: 5 }, 
  { field: "java", years: 6 }, 
  { field: "ui/ux", years: 2 }] // and so on

How do I dynamically create a query without worrying about sql injection?

Techstack

  • Nodejs
  • Typescript
  • TypeORM
  • Postgres


from Recent Questions - Stack Overflow https://ift.tt/3Glsb5U
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