mongodb-update-one.md•5.47 kB
---
title: "mongodb-update-one"
type: docs
weight: 1
description: >
A "mongodb-update-one" tool updates a single document in a MongoDB collection.
aliases:
- /resources/tools/mongodb-update-one
---
## About
A `mongodb-update-one` tool updates a single document within a specified MongoDB
collection. It locates the document to be updated using a `filterPayload` and
applies modifications defined in an `updatePayload`. If the filter matches
multiple documents, only the first one found will be updated.
This tool is compatible with the following source kind:
* [`mongodb`](../../sources/mongodb.md)
---
## Example
Here's an example of a `mongodb-update-one` tool configuration. This tool
updates the `stock` and `status` fields of a document in the `inventory`
collection where the `item` field matches a provided value. If no matching
document is found, the `upsert: true` option will create a new one.
```yaml
tools:
update_inventory_item:
kind: mongodb-update-one
source: my-mongo-source
description: Use this tool to update an item's stock and status in the inventory.
database: products
collection: inventory
filterPayload: |
{ "item": {{json .item_name}} }
filterParams:
- name: item_name
type: string
description: The name of the item to update.
updatePayload: |
{ "$set": { "stock": {{json .new_stock}}, "status": {{json .new_status}} } }
updateParams:
- name: new_stock
type: integer
description: The new stock quantity.
- name: new_status
type: string
description: The new status of the item (e.g., "In Stock", "Backordered").
canonical: false
upsert: true
```
## Reference
| **field** | **type** | **required** | **description** |
|:--------------|:---------|:-------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| kind | string | true | Must be `mongodb-update-one`. |
| source | string | true | The name of the `mongodb` source to use. |
| description | string | true | A description of the tool that is passed to the LLM. |
| database | string | true | The name of the MongoDB database containing the collection. |
| collection | string | true | The name of the MongoDB collection to update a document in. |
| filterPayload | string | true | The MongoDB query filter document to select the document for updating. It's written as a Go template, using `{{json .param_name}}` to insert parameters. |
| filterParams | list | true | A list of parameter objects that define the variables used in the `filterPayload`. |
| updatePayload | string | true | The MongoDB update document, which specifies the modifications. This often uses update operators like `$set`. It's written as a Go template, using `{{json .param_name}}` to insert parameters. |
| updateParams | list | true | A list of parameter objects that define the variables used in the `updatePayload`. |
| canonical | bool | true | Determines if the `updatePayload` string is parsed using MongoDB's Canonical or Relaxed Extended JSON format. **Canonical** is stricter about type representation (e.g., `{"$numberInt": "42"}`), while **Relaxed** is more lenient (e.g., `42`). |
| upsert | bool | false | If `true`, a new document is created if no document matches the `filterPayload`. Defaults to `false`. |