# Memory history

GET https://api.xtrace.ai/v1/memories/{memory_id}/history

View the change log of a memory (superseded versions, edits).

Reference: https://docs.x-mem.xtrace.ai/api-reference/memory/memories/get-memory-history

## OpenAPI Specification

```yaml
openapi: 3.1.0
info:
  title: XTrace Memory API
  version: 1.0.0
paths:
  /memories/{memory_id}/history:
    get:
      operationId: get-memory-history
      summary: Memory history
      description: View the change log of a memory (superseded versions, edits).
      tags:
        - subpackage_memories
      parameters:
        - name: memory_id
          in: path
          description: Unique memory identifier.
          required: true
          schema:
            type: string
        - name: Authorization
          in: header
          description: XTrace API key as Bearer token.
          required: true
          schema:
            type: string
      responses:
        '200':
          description: History entries
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/MemoryHistoryEntry'
        '404':
          description: Resource not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
servers:
  - url: https://api.xtrace.ai/v1
components:
  schemas:
    MemoryHistoryEntryEvent:
      type: string
      enum:
        - ADD
        - UPDATE
        - DELETE
      title: MemoryHistoryEntryEvent
    MemoryHistoryEntry:
      type: object
      properties:
        id:
          type: string
        memory:
          type: string
        event:
          $ref: '#/components/schemas/MemoryHistoryEntryEvent'
        timestamp:
          type: string
          format: date-time
        previous_memory:
          type:
            - string
            - 'null'
      title: MemoryHistoryEntry
    Error:
      type: object
      properties:
        error:
          type: string
        details:
          type: object
          additionalProperties:
            description: Any type
      required:
        - error
      title: Error
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: XTrace API key as Bearer token.

```

## SDK Code Examples

```python
import requests

url = "https://api.xtrace.ai/v1/memories/memory_id/history"

payload = {}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.xtrace.ai/v1/memories/memory_id/history';
const options = {
  method: 'GET',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

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

func main() {

	url := "https://api.xtrace.ai/v1/memories/memory_id/history"

	payload := strings.NewReader("{}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(res)
	fmt.Println(string(body))

}
```

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

url = URI("https://api.xtrace.ai/v1/memories/memory_id/history")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{}"

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

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.xtrace.ai/v1/memories/memory_id/history")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.xtrace.ai/v1/memories/memory_id/history', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.xtrace.ai/v1/memories/memory_id/history");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.xtrace.ai/v1/memories/memory_id/history")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```