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Reupload Preview

POST
/datasets/{dataset_id}/reupload/{job_id}/preview
curl --request POST \
--url https://example.com/api/datasets/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/reupload/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/preview \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{ "layer_name": "example" }'

Preview the schema diff between old dataset and new upload.

When the uploaded file contains multiple layers, the response includes all_layers (for frontend layer-select UI) and previous_source_layer (pre-selection hint from the most-recent completed IngestJob for this dataset). Pass layer_name in the request body to target a specific layer; omit it to get the default first-layer metadata.

dataset_id
required
Dataset Id
string format: uuid
job_id
required
Job Id
string format: uuid
Media type application/json
Any of:
ReuploadPreviewRequest
object
layer_name
Any of:
string
<= 500 characters
Example generated
{
"layer_name": "example"
}

Successful Response

Media type application/json
ReuploadPreviewResponse
object
job_id
required
Job Id
string format: uuid
source_filename
required
Any of:
string
columns
required
Columns
Array<object>
ColumnChange
object
name
required
Name
string
type
required
Type
string
crs
required
Any of:
integer
geometry_type
required
Any of:
string
feature_count
required
Any of:
integer
sample_rows
required
Sample Rows
Array<object>
object
key
additional properties
any
layer_name
required
Layer Name
string
schema_diff
required
SchemaDiff
object
columns_added
required
Columns Added

Columns present in new but not old schema

Array<object>
ColumnChange
object
name
required
Name
string
type
required
Type
string
columns_removed
required
Columns Removed

Columns present in old but not new schema

Array<object>
ColumnChange
object
name
required
Name
string
type
required
Type
string
type_changes
required
Type Changes

Columns whose data type changed

Array<object>
TypeChange
object
name
required
Name
string
old_type
required
Old Type
string
new_type
required
New Type
string
row_count_old
required
Any of:
integer
row_count_new
required
Any of:
integer
row_count_delta
required
Row Count Delta

Row_count_new minus row_count_old

integer
all_layers
Any of:
Array<object>
object
key
additional properties
any
previous_source_layer
Any of:
string
Example generated
{
"job_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"source_filename": "example",
"columns": [
{
"name": "example",
"type": "example"
}
],
"crs": 1,
"geometry_type": "example",
"feature_count": 1,
"sample_rows": [
{}
],
"layer_name": "example",
"schema_diff": {
"columns_added": [
{
"name": "example",
"type": "example"
}
],
"columns_removed": [
{
"name": "example",
"type": "example"
}
],
"type_changes": [
{
"name": "example",
"old_type": "example",
"new_type": "example"
}
],
"row_count_old": 1,
"row_count_new": 1,
"row_count_delta": 1
},
"all_layers": [
{}
],
"previous_source_layer": "example"
}

Bad request — invalid payload

Unauthorized — missing or invalid credentials

Forbidden — caller lacks write access

Not found

Conflict — resource state prevents the operation

Validation error

Internal server error