将JSON字符串插入PostgreSQL表列

Question

Trying to insert following JSON String as is without formatting

str={
    "Trial": {
        "@id": "xxxxx",
        "key1": "aaaaaaaa (BAL-8557) aaaaaaaaaaaaaaaaaa",
        "key2": "aaaaaaaaaaaaa , aaaaaaaaaaaaaaaaaaa",
        "key3": "Yes",
        "key4": "No",
        "key5": {
        "key5": [{
                    "@type": "ABC",
                    "$": "ABC121 "
                },
                {
                    "@type": "ABC",
                    "$": "ABC12133 "
                }]
        },
        "Indications": {
            "Indication": {
                "@id": "1308",
                "$": "aaaaaa"
            }
        }
    }
}

in to following PostgreSQL DB

CREATE TABLE records
(
  id text,
  record json
) 

Code I am using to perform the insert operation

cur = conn.cursor()
cur.execute("INSERT INTO trial_records(id, record) VALUES (%s, %s)", ('1', json.dumps(json.loads(str))))

Error I am getting

the JSON object must be str, bytes or bytearray, not 'dict' 

Is this the right syntax to store json string as part of the column

Answer 1

json.loads(obj) creates json object from string data.

json.dumps(obj) creates string from json object.

So you should change json.dumps(json.loads(str)) to json.dumps(str) .

PS: I'd also don't recommend to call your variables as type names like str , int . You are making str() and int() call unable from current scope.