# JSON.MSET

> Set values in multiple keys.

Use `JSON.MSET` to set values at paths in several JSON documents in one atomic call.

Each triple gives a key, a path, and a value, and missing keys are created. Either every write is applied or none is, with no other command running in between, which is what makes it the right tool for documents that must stay consistent with each other. The reply is `OK`.

## Syntax

```redis
JSON.MSET <key> <path> <value> [key path value ...]
```

## Arguments

| Argument | Required | Repeatable | Description |
| --- | --- | --- | --- |
| `key path value` | Yes | Yes | One or more key, path, and valid-JSON-value triples. |

## Important points

- Raw TCP examples pass JSON values as valid JSON text. Typed Upstash SDK helpers serialize native objects and values for you.
- Paths beginning with `$` use JSONPath and can match multiple values, so many JSON commands return an array of per-match results.

## Response

The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.

| Protocol | Reply |
| --- | --- |
| RESP2 | Simple string `OK` |
| RESP3 | Simple string `OK` |

<Note>
  Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
</Note>

## Examples

TCP examples use the TLS `REDIS_URL` from the Upstash console. REST examples use `UPSTASH_REDIS_REST_URL` and `UPSTASH_REDIS_REST_TOKEN`.

<AccordionGroup>

<Accordion title="Redis CLI" icon="terminal">

```bash
JSON.MSET profile:1 $ '{"name":"Ada"}'
```

</Accordion>

<Accordion title="@upstash/redis" icon="node-js" iconType="brands">

```ts
import { Redis } from "@upstash/redis";

const redis = Redis.fromEnv();
const result = await redis.json.mset([
  { key: "profile:1", path: "$", value: { name: "Ada" } },
]);
console.log(result);
```

</Accordion>

<Accordion title="upstash_redis" icon="python" iconType="brands">

```python
from upstash_redis import Redis

redis = Redis.from_env()
result = redis.json().mset([("profile:1", "$", {"name": "Ada"})])
print(result)
```

</Accordion>

<Accordion title="ioredis" icon="node-js" iconType="brands">

```ts
import Redis from "ioredis";

const redis = new Redis(process.env.REDIS_URL!);
const result = await redis.call("JSON.MSET", "profile:1", "$", "{\"name\":\"Ada\"}");
console.log(result);
```

</Accordion>

<Accordion title="node-redis" icon="node-js" iconType="brands">

```ts
import { createClient } from "redis";

const client = await createClient({ url: process.env.REDIS_URL })
  .on("error", console.error)
  .connect();
const result = await client.json.mSet([{ key: "profile:1", path: "$", value: { name: "Ada" } }]);
console.log(result);
```

</Accordion>

<Accordion title="redis-py" icon="python" iconType="brands">

```python
import os
import redis

client = redis.from_url(os.environ["REDIS_URL"])
result = client.json().mset([("profile:1", "$", {"name": "Ada"})])
print(result)
```

</Accordion>

<Accordion title="go-redis" icon="golang" iconType="brands">

```go
package main

import (
    "context"
    "fmt"
    "os"

    "github.com/redis/go-redis/v9"
)

func main() {
    opts, err := redis.ParseURL(os.Getenv("REDIS_URL"))
    if err != nil {
        panic(err)
    }
    client := redis.NewClient(opts)
    result, err := client.JSONMSet(context.Background(), "profile:1", "$", `{"name":"Ada"}`).Result()
    if err != nil {
        panic(err)
    }
    fmt.Println(result)
}
```

</Accordion>

<Accordion title="jedis" icon="java" iconType="brands">

```java
import java.net.URI;
import java.nio.charset.StandardCharsets;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.commands.ProtocolCommand;

ProtocolCommand command = () -> "JSON.MSET".getBytes(StandardCharsets.UTF_8);
try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
  Object result = jedis.sendCommand(command, "profile:1", "$", "{\"name\":\"Ada\"}");
  System.out.println(result);
}
```

</Accordion>

<Accordion title="redis-rs" icon="rust" iconType="brands">

```rust
fn main() -> redis::RedisResult<()> {
    let url = std::env::var("REDIS_URL").expect("REDIS_URL is not set");
    let client = redis::Client::open(url)?;
    let mut connection = client.get_connection()?;

    let mut command = redis::cmd("JSON.MSET");
    command.arg("profile:1");
    command.arg("$");
    command.arg("{\"name\":\"Ada\"}");
    let result: redis::Value = command.query(&mut connection)?;
    println!("{result:?}");
    Ok(())
}
```

</Accordion>

</AccordionGroup>