Adding attachments using layer.edit_features fail

When using layer.edit_features() to add attachments the method fails and returns None. This is caused by your requirement of one of the methods adds, deletes or updates to be part of the call.

layer.py:

You should add and "attachments" not in params as well.

Until fixed a workaround is to add an empty deletes=""

        _res = _layer.edit_features(deletes="", use_global_ids=True, gdb_version=_ver, attachments={'adds':[_att]})
        print(_res)

Platform (please complete the following information):

• Python API Version: 2.0.0

[nanaeaubry]

@HakonD

Ok I see what you are saying. We will further investigate these issues.

[HakonD]

Sure, I trust you to find a suitable feature service and attachment file.

import os
import base64
import uuid
import mimetypes
import arcgis

# File to attach
_attach = "c:/temp/test.txt"
# Create base64 string
with open(_attach,'rb') as _file:
    _data = _file.read()
    _data64 = base64.b64encode(_data).decode('ascii')

# Get a layer and a feature to attach to
_gis = arcgis.GIS('pro')
_ds = "https://your.server/server/rest/services/yourservice/FeatureServer/0"
_layer = arcgis.features.FeatureLayer(_ds, _gis)
_feat = _layer.query(result_record_count=1, return_all_records=False, out_fields='OBJECTID,GlobalID')

# Create attachment
_att = {
    'globalId': str(uuid.uuid4()),
    'parentGlobalId': _feat.features[0].attributes['GlobalID'],
    'contentType': mimetypes.guess_type(_attach)[0],
    'name': os.path.basename(_attach),
    'data': _data64
}

# Add and fail
_res = _layer.edit_features(use_global_ids=True, attachments={'adds':[_att]})
print(_res)

# Add with empty deletes
_res = _layer.edit_features(deletes="", use_global_ids=True, attachments={'adds':[_att]})
print(_res)