---
title: template
sidebarTitle: template
---
# `fastmcp.resources.template`
Resource template functionality.
## Functions
### `extract_query_params`
```python
extract_query_params(uri_template: str) -> set[str]
```
Extract query parameter names from RFC 6570 `{?param1,param2}` syntax.
### `build_regex`
```python
build_regex(template: str) -> re.Pattern
```
Build regex pattern for URI template, handling RFC 6570 syntax.
Supports:
- `{var}` - simple path parameter
- `{var*}` - wildcard path parameter (captures multiple segments)
- `{?var1,var2}` - query parameters (ignored in path matching)
### `match_uri_template`
```python
match_uri_template(uri: str, uri_template: str) -> dict[str, str] | None
```
Match URI against template and extract both path and query parameters.
Supports RFC 6570 URI templates:
- Path params: `{var}`, `{var*}`
- Query params: `{?var1,var2}`
## Classes
### `ResourceTemplate`
A template for dynamically creating resources.
**Methods:**
#### `enable`
```python
enable(self) -> None
```
#### `disable`
```python
disable(self) -> None
```
#### `from_function`
```python
from_function(fn: Callable[..., Any], uri_template: str, name: str | None = None, title: str | None = None, description: str | None = None, icons: list[Icon] | None = None, mime_type: str | None = None, tags: set[str] | None = None, enabled: bool | None = None, annotations: Annotations | None = None, meta: dict[str, Any] | None = None) -> FunctionResourceTemplate
```
#### `set_default_mime_type`
```python
set_default_mime_type(cls, mime_type: str | None) -> str
```
Set default MIME type if not provided.
#### `matches`
```python
matches(self, uri: str) -> dict[str, Any] | None
```
Check if URI matches template and extract parameters.
#### `read`
```python
read(self, arguments: dict[str, Any]) -> str | bytes
```
Read the resource content.
#### `create_resource`
```python
create_resource(self, uri: str, params: dict[str, Any]) -> Resource
```
Create a resource from the template with the given parameters.
#### `to_mcp_template`
```python
to_mcp_template(self, **overrides: Any) -> MCPResourceTemplate
```
Convert the resource template to an MCPResourceTemplate.
#### `from_mcp_template`
```python
from_mcp_template(cls, mcp_template: MCPResourceTemplate) -> ResourceTemplate
```
Creates a FastMCP ResourceTemplate from a raw MCP ResourceTemplate object.
#### `key`
```python
key(self) -> str
```
The key of the component. This is used for internal bookkeeping
and may reflect e.g. prefixes or other identifiers. You should not depend on
keys having a certain value, as the same tool loaded from different
hierarchies of servers may have different keys.
### `FunctionResourceTemplate`
A template for dynamically creating resources.
**Methods:**
#### `read`
```python
read(self, arguments: dict[str, Any]) -> str | bytes
```
Read the resource content.
#### `from_function`
```python
from_function(cls, fn: Callable[..., Any], uri_template: str, name: str | None = None, title: str | None = None, description: str | None = None, icons: list[Icon] | None = None, mime_type: str | None = None, tags: set[str] | None = None, enabled: bool | None = None, annotations: Annotations | None = None, meta: dict[str, Any] | None = None) -> FunctionResourceTemplate
```
Create a template from a function.