## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.neynar.com/llms.txt)

Use this file to discover all available pages before exploring further.

Follow user

### cURL

```bash
curl --request POST \
  --url https://api.neynar.com/v2/farcaster/user/follow/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: NEYNAR_API_DOCS' \
  --data '
{
  "signer_uuid": "19d0c5fd-9b33-4a48-a0e2-bc7b0555baec",
  "target_fids": [\
    194,\
    3\
  ]
}'
```

### Python

```python
import requests

url = "https://api.neynar.com/v2/farcaster/user/follow/"

payload = {
    "signer_uuid": "19d0c5fd-9b33-4a48-a0e2-bc7b0555baec",
    "target_fids": [194, 3]
}
headers = {
    "x-api-key": "NEYNAR_API_DOCS",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
```

### JavaScript (Fetch)

```javascript
const options = {
  method: 'POST',
  headers: {'x-api-key': 'NEYNAR_API_DOCS', 'Content-Type': 'application/json'},
  body: JSON.stringify({signer_uuid: '19d0c5fd-9b33-4a48-a0e2-bc7b0555baec', target_fids: [194, 3]})
};

fetch('https://api.neynar.com/v2/farcaster/user/follow/', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

### PHP

```php
$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.neynar.com/v2/farcaster/user/follow/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'signer_uuid' => '19d0c5fd-9b33-4a48-a0e2-bc7b0555baec',
    'target_fids' => [
        194,
        3
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: NEYNAR_API_DOCS"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
```

### Go

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

url := "https://api.neynar.com/v2/farcaster/user/follow/"

payload := strings.NewReader("{\n  \"signer_uuid\": \"19d0c5fd-9b33-4a48-a0e2-bc7b0555baec\",\n  \"target_fids\": [\n    194,\n    3\n  ]\n}")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("x-api-key", "NEYNAR_API_DOCS")
	req.Header.Add("Content-Type", "application/json")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))
}
```

### Unirest (Java)

```java
HttpResponse<String> response = Unirest.post("https://api.neynar.com/v2/farcaster/user/follow/")
  .header("x-api-key", "NEYNAR_API_DOCS")
  .header("Content-Type", "application/json")
  .body("{\n  \"signer_uuid\": \"19d0c5fd-9b33-4a48-a0e2-bc7b0555baec\",\n  \"target_fids\": [\n    194,\n    3\n  ]\n}")
  .asString();
```

### Ruby

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.neynar.com/v2/farcaster/user/follow/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = 'NEYNAR_API_DOCS'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"signer_uuid\": \"19d0c5fd-9b33-4a48-a0e2-bc7b0555baec\",\n  \"target_fids\": [\n    194,\n    3\n  ]\n}"

response = http.request(request)
puts response.read_body
```

### Response Codes

- 200
- 400
- 403
- 404
- 500

### Response Structure

```json
{
  "details": [
    {
      "hash": "<string>",
      "success": true,
      "target_fid": 3
    }
  ],
  "success": true
}
```

### Error Response Structure

```json
{
  "message": "<string>",
  "code": "<string>",
  "property": "<string>",
  "status": 123
}
```

## Node.js SDK

🔗 **SDK Method:** [followUser](https://docs.neynar.com/nodejs-sdk/user-apis/followUser)

### Authorizations

- **x-api-key**: string, header, default: NEYNAR_API_DOCS, required: API key to authorize requests

### Body Structure

- **signer_uuid**: string, required, UUID of the signer.
- **target_fids**: integer[], required, Maximum array length: `100`, Required range: `x >= 1`, Example: `[194, 3]`

### Response

#### Success Response

- **status**: 200 
- **Content-Type**: application/json
- **details**: FollowResponse · object[], required
- **success**: boolean, required

### Related topics
- [followUser](https://docs.neynar.com/nodejs-sdk/user-apis/followUser)
- [Follow NFT Owners on Farcaster Using Neynar](https://docs.neynar.com/docs/following-all-farcaster-users-owning-cryptopunk)
- [Suggest Follows](https://docs.neynar.com/reference/fetch-follow-suggestions)
- [Follow a channel](https://docs.neynar.com/reference/follow-channel)
- [Update Follow / Unfollow](https://docs.neynar.com/reference/update-follow-unfollow)