Uploading the manifest

Prepare the manifest to use in a campaign:

1. In the firmware manifest file, update the payloadUri field that points at the image; use the URL in datafile from the step above:

   `"payloadUri" : "<../path/to/file/FULL_EXAMPLE/mbed-cloud-client-example/file.bin`>"
   

2. Sign and encode the manifest using the manifest tool.

3. Upload the signed manifest to the service. Note that this endpoint, like that to upload a firmware image, requires data as a multipart form:

   curl -X POST https://api.us-east-1.mbedcloud.com/v3/manifests
        -H "Authorization: Bearer <access_key>" \
        -F datafile=@<../path/to/file.bin> \
        -F name="<name>" \
        -F description="<description>"
   

   You will receive this information:

   {
        "created_at":"<timestamp>",
        "datafile":"<url>",
        "datafile_size":<size>,
        "description":"<description>",
        "device_class":"<class_id>",
        "etag":"<tag>",
        "id":"<device_id>",
        "name":"<name>",
        "object":"firmware-manifest",
        "timestamp":"<time>",
        "updated_at":"<timestamp>",
        "key_table":null
   }