Getting Error when Trying Send Transaction

[alvin-reyes]

I'm trying to run a few basic tests on creating a transaction but I kept on running to this issue.

Any clue as to why this is happening?
Thanks

{
  "asset": {
    "id": null,
    "data": {
      "firstname": "alvin"
    }
  },
  "id": "a913974543a18bf8f7e87317a701bca533aacc2688c960ce86ee2c4408d45849",
  "inputs": [
    {
      "fulfillment": "pGSAIPMHO-u2dl1aprcNK4BrrsDH0bcGpfYaFwJa2okBA_0RgUBsLat3v6ZDEU-EJSZh-Wtwd1REwQ6pP_qkPKngdmBrUSWOM3PZA4oOB_CT62Go3k07ghHM_NgASx5LZPGG6LwJ",
      "fulfills": null,
      "owners_before": [
        "HMgUAhVDWLMxQMUkPagifnaMCTY7UhqfkbsZX6LWNx5v"
      ]
    }
  ],
  "metadata": {
    "what": "bigchaintrans"
  },
  "operation": "CREATE",
  "outputs": [
    {
      "amount": "1",
      "condition": {
        "details": {
          "public_key": "HMgUAhVDWLMxQMUkPagifnaMCTY7UhqfkbsZX6LWNx5v",
          "type": "ed25519-sha-256"
        },
        "uri": "ni:///sha-256;2wpNvVFTeq5fWWvt8xlICgqOmHHigSYvr0s5n60FZEw?fpt\u003ded25519-sha-256\u0026cost\u003d131072"
      },
      "public_keys": [
        "HMgUAhVDWLMxQMUkPagifnaMCTY7UhqfkbsZX6LWNx5v"
      ]
    }
  ],
  "version": "1.0"
}

Result

https://test.ipdb.io/api/v1/transactions > 400
{
  "message": "Invalid transaction schema: None is not of type 'string'", 
  "status": 400
}

[bohdanbezp]

Not really sure, as I'm not the primary dev of bigchaindb, but probably this is due to 'null' field in the 'asset'. If this won't help, please post the issue here https://github.com/bigchaindb/bigchaindb

[alvin-reyes]

Issue is that the ID was set to null as oppose to removing it entirely. The bigchain server library expects that this field is "popped" as opposed to just set to null.