# Variables

## Get flow variables

<mark style="color:green;">`POST`</mark> `/variables/:flowId/fetch`

Get variables. Variables are placeholders that can be used in component config or inputs. These placeholders are replaced either at runtime by data coming from components connected back in the chain (dynamic variables) or by real values (static variables).

**Headers**

| Name          | Value              |
| ------------- | ------------------ |
| Content-Type  | `application/json` |
| Authorization | `Bearer <token>`   |

**Body**

| Name                  | Type           | Description                                                                                                     |
| --------------------- | -------------- | --------------------------------------------------------------------------------------------------------------- |
| useCache              | boolean        | Default `true`.                                                                                                 |
| flow                  | boolean        | Default `true`. If `true`, the response object will contain flow variables, too.                                |
| components            | object         |                                                                                                                 |
| components.IDs        | array\<string> | Array of component IDs                                                                                          |
| components.links      | boolean        | Default `true`. If `true`, the response object will contain *input link* variables for the given component IDs. |
| components.properties | boolean        | Default `true`. If true, the response object will contains *properties* variables for the given component IDs.  |

**Response**

{% tabs %}
{% tab title="200" %}

```json
{
    "components": {
        "e58aba53-cc20-4847-b3ef-c0d35d5e4421": {
            "links": {
                "message": {
                    "a6bb7a84-89c5-41e9-8b59-6a3264a49272": {
                        "out": {
                            "inspector": {},
                            "variables": {
                                "static": {},
                                "dynamic": [
                                    {
                                        "componentId": "9f9542a2-b37d-4280-aa54-87f21912701b",
                                        "hardwired": true,
                                        "label": "Start time",
                                        "port": "out",
                                        "value": "{{{$.9f9542a2-b37d-4280-aa54-87f21912701b.out.started}}}"
                                    },
                                    {
                                        "componentId": "9f9542a2-b37d-4280-aa54-87f21912701b",
                                        "hardwired": true,
                                        "label": "Raw Output",
                                        "port": "out",
                                        "value": "{{{$.9f9542a2-b37d-4280-aa54-87f21912701b.out}}}"
                                    },
                                    {
                                        "componentId": "a6bb7a84-89c5-41e9-8b59-6a3264a49272",
                                        "hardwired": true,
                                        "label": "Raw Output",
                                        "port": "out",
                                        "value": "{{{$.a6bb7a84-89c5-41e9-8b59-6a3264a49272.out}}}"
                                    }
                                ]
                            }
                        }
                    }
                }
            },
            "properties": {
                "inspector": {
                    "inputs": {},
                    "groups": {},
                    "errors": {
                        "inputs": []
                    }
                },
                "variables": {
                    "static": {
                        "channelId": [
                            {
                                "label": "My Channel",
                                "value": "123"
                            },
                            {
                                "label": "Another Channel",
                                "value": "ABD1"
                            }
                        ]
                    }
                },
                "schema": {}
            }
        }
    },
    "flow": [
        {
            "label": "Flow ID",
            "category": [
                "Control"
            ],
            "name": "g_flowId"
        },
        {
            "label": "Flow Name",
            "category": [
                "Control"
            ],
            "name": "g_flowName"
        },
        {
            "label": "Random Number",
            "category": [
                "Math"
            ],
            "name": "g_random"
        },
        {
            "label": "PI",
            "category": [
                "Math"
            ],
            "name": "g_pi"
        },
        {
            "label": "UUID v4",
            "category": [
                "Control"
            ],
            "name": "g_uuid4"
        },
        {
            "label": "Timestamp (Unix)",
            "category": [
                "Date"
            ],
            "name": "g_timestamp"
        },
        {
            "label": "Now (ISO 8601)",
            "category": [
                "Date"
            ],
            "name": "g_now"
        },
        {
            "label": "User ID",
            "category": [
                "Control"
            ],
            "name": "g_userId"
        },
        {
            "label": "Webhook URL",
            "category": [
                "Control"
            ],
            "name": "g_webhookUrl"
        },
        {
            "label": "Custom Fields",
            "category": [
                "Control"
            ],
            "name": "g_customFields"
        }
    ]
}
```

{% endtab %}
{% endtabs %}

#### Example:

`curl --location 'https://api.YOUR_TENANT.appmixer.cloud/variables/bfc64735-7cf0-4061-844c-e15a7147cbc7/fetch'`\
`--header 'Authorization: Bearer [ACCESS_TOKEN]'`\
`--header 'Content-Type: application/json'`\
`--data '{ "useCache": true, "flow": false, "components": { "IDs": [ "bd9891a7-3303-43d4-a223-714a8db11e05" ], "properties": true, "links": false } }'`\ <br>


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