# Add ExpectationsStore with TupleAzureBlobStoreBackend to DataContext

**URL:** <https://discourse.greatexpectations.io/t/add-expectationsstore-with-tupleazureblobstorebackend-to-datacontext/1928>\
**Category:** GX Core Support\
**Tags:** help-wanted\
**Created:** [October 4, 2024, 1:59pm UTC](https://discourse.greatexpectations.io/t/add-expectationsstore-with-tupleazureblobstorebackend-to-datacontext/1928 "2024-10-04T13:59:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![mw13](https://avatars.discourse-cdn.com/v4/letter/m/9e8a1a/32.png) [@mw13](https://discourse.greatexpectations.io/u/mw13)\
**Post date:** [October 4, 2024, 1:59pm UTC](https://discourse.greatexpectations.io/t/add-expectationsstore-with-tupleazureblobstorebackend-to-datacontext/1928/1 "2024-10-04T13:59:59Z")

</div>

Hi,

I am trying to add an `ExpectationsStore` with a `TupleAzureBlobStoreBackend` to `DataContext`, but I keep encountering errors related to saving the configuration to a YAML file:

```auto
ruamel.yaml.representer.RepresenterError: cannot represent an object:

```

I’m using the following versions:

- `great-expectations==1.1.0`
- `ruamel.yaml==0.17.17`

### Steps to Reproduce the Error:

```python
data_context = gx.get_context(project_root_dir="./expectations", mode="file")

store_config = {
    'class_name': 'ExpectationsStore',
    'store_backend': {
        'class_name': 'TupleAzureBlobStoreBackend',
        'container': 'container',
        'prefix': 'expectations',
        'connection_string': 'string',
    },
}

data_context.add_store(name="expectations_store", config=store_config)

```

### Analysis:

I believe the issue stems from this part of the `great_expectations.data_context.abstract_data_context` module:

```python
def _build_store_from_config(self, name: str, config: dict | StoreConfigTypedDict) -> Store:
    module_name = "great_expectations.data_context.store"
    # Set expectations_store.store_backend_id to the data_context_id from the project_config if
    # the expectations_store does not yet exist by:
    # adding the data_context_id from the project_config
    # to the store_config under the key manually_initialize_store_backend_id
    if (name == self.expectations_store_name) and config.get("store_backend"):
        config["store_backend"].update(
            {"manually_initialize_store_backend_id": self.variables.data_context_id}
        )

```

The `data_context_id` is a UUID, and when this UUID is added to the configuration, `ruamel.yaml` seems unable to parse it as a string, which causes the error.

### Question:

Do you have any advice on how to resolve this error and correctly create the configuration?