n8n × PopNow

在 n8n 里生成 AI 图片和视频

什么都不用装：n8n 自带的 HTTP Request 节点直接调用 PopNow API，n8n Cloud 和自托管都能用。粘贴工作流，填上密钥就能运行。

复制工作流获取 API 密钥

四步配好

在 n8n 里新建一个 Header Auth 凭据。Name 填 Authorization，Value 填 Bearer、一个空格，再加上你以 sk-popnow- 开头的密钥。
复制下面的工作流，在空白画布上按 Ctrl + V（Mac 上是 Cmd + V）粘贴。
打开 Create task 节点，选上刚建的凭据，再改模型和提示词。
运行。最后一个节点会给出文件地址；在后面接一个 Google Drive、Slack 或 S3 节点把文件存下来。

工作流

建任务、等待、查询，没完成就循环，完成后把文件链接交给下一个节点。

Start
Create task
Wait 5 seconds
Check task
Done?
File URL

↺ Done? → Wait 5 seconds

popnow-workflow.json

{
  "name": "PopNow: generate and get the file",
  "nodes": [
    {
      "id": "b1f0c1a2-0001-4c55-9a10-000000000001",
      "name": "Start",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        0,
        0
      ],
      "parameters": {}
    },
    {
      "id": "b1f0c1a2-0002-4c55-9a10-000000000002",
      "name": "Create task",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        220,
        0
      ],
      "parameters": {
        "method": "POST",
        "url": "https://api.popnow.ai/api/v1/jobs/createTask",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Idempotency-Key",
              "value": "={{ $execution.id }}"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "{\n  \"model\": \"google/nano-banana-2.1/text-to-image\",\n  \"input\": {\n    \"prompt\": \"A ceramic teapot on a linen cloth, soft window light, muted palette\",\n    \"aspect_ratio\": \"16:9\",\n    \"resolution\": \"1k\",\n    \"output_format\": \"png\"\n  }\n}",
        "options": {}
      }
    },
    {
      "id": "b1f0c1a2-0003-4c55-9a10-000000000003",
      "name": "Wait 5 seconds",
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1.1,
      "position": [
        440,
        0
      ],
      "parameters": {
        "amount": 5
      },
      "webhookId": "4d3c2b1a-5e6f-4a7b-8c9d-0e1f2a3b4c5d"
    },
    {
      "id": "b1f0c1a2-0004-4c55-9a10-000000000004",
      "name": "Check task",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        660,
        0
      ],
      "parameters": {
        "url": "https://api.popnow.ai/api/v1/jobs/recordInfo",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "taskId",
              "value": "={{ $('Create task').item.json.data.taskId }}"
            }
          ]
        },
        "options": {}
      }
    },
    {
      "id": "b1f0c1a2-0005-4c55-9a10-000000000005",
      "name": "Done?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2,
      "position": [
        880,
        0
      ],
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "loose"
          },
          "conditions": [
            {
              "id": "c0ffee00-0000-4000-8000-000000000001",
              "leftValue": "={{ ['succeeded','failed','canceled','expired'].includes($json.data.state) && !($json.data.output?.assets ?? []).some(a => a.pending && !a.unavailable) }}",
              "rightValue": "",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      }
    },
    {
      "id": "b1f0c1a2-0006-4c55-9a10-000000000006",
      "name": "File URL",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1100,
        -100
      ],
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "c0ffee00-0000-4000-8000-000000000002",
              "name": "state",
              "value": "={{ $json.data.state }}",
              "type": "string"
            },
            {
              "id": "c0ffee00-0000-4000-8000-000000000003",
              "name": "fileUrl",
              "value": "={{ $json.data.output?.assets?.[0]?.url ?? '' }}",
              "type": "string"
            },
            {
              "id": "c0ffee00-0000-4000-8000-000000000004",
              "name": "error",
              "value": "={{ $json.data.errorMessage ?? '' }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      }
    }
  ],
  "connections": {
    "Start": {
      "main": [
        [
          {
            "node": "Create task",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create task": {
      "main": [
        [
          {
            "node": "Wait 5 seconds",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wait 5 seconds": {
      "main": [
        [
          {
            "node": "Check task",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check task": {
      "main": [
        [
          {
            "node": "Done?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Done?": {
      "main": [
        [
          {
            "node": "File URL",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Wait 5 seconds",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}

标准的 n8n JSON。模型和 input 都取自本页，原样就能通过校验。