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71 lines
2.6 KiB
Plaintext
71 lines
2.6 KiB
Plaintext
---
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title: Template
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---
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Template lets you dynamically format and combine variables from previous nodes into a single text-based output using Jinja2, a powerful templating syntax for Python. It's useful for combining data from multiple sources into a specific structure required by subsequent nodes. The simple example below shows how to assemble an article by piecing together various previous outputs:
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<img src="https://assets-docs.dify.ai/2025/04/0838bb5c7e1d1a58ed30fcd9fc48920f.png" width="300" />
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Beyond naive use cases, you can create more complex templates as per Jinja's [documentation](https://jinja.palletsprojects.com/en/3.1.x/templates/) for a variety of tasks. Here's one template that structures retrieved chunks and their relevant metadata from a knowledge retrieval node into a formatted markdown:
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```Plain
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{% for item in chunks %}
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### Chunk {{ loop.index }}.
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### Similarity: {{ item.metadata.score | default('N/A') }}
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#### {{ item.title }}
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##### Content
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{{ item.content | replace('\n', '\n\n') }}
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---
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{% endfor %}
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```
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This template node can then be used within a Chatflow to return intermediate outputs to the end user, before a LLM response is initiated.
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> The `Answer` node in a Chatflow is non-terminal. It can be inserted anywhere to output responses at multiple points within the flow.
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Example: Support for rendering HTML forms:
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```html
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<form data-format="json"> // Default to text
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<label for="username">Username:</label>
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<input type="text" name="username" />
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<label for="password">Password:</label>
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<input type="password" name="password" />
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<label for="content">Content:</label>
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<textarea name="content"></textarea>
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<label for="date">Date:</label>
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<input type="date" name="date" />
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<label for="time">Time:</label>
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<input type="time" name="time" />
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<label for="datetime">Datetime:</label>
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<input type="datetime" name="datetime" />
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<label for="select">Select:</label>
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<input type="select" name="select" data-options='["hello","world"]'/>
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<input type="checkbox" name="check" data-tip="By checking this means you agreed"/>
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<button data-size="small" data-variant="primary">Login</button>
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</form>
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```
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<img
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src="https://assets-docs.dify.ai/2025/04/9d24e9cfa3cdde00e4eee15bd4bbea76.png"
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width="300"
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className="mx-auto"
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alt="metadata_field"
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/>
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{/*
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Contributing Section
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DO NOT edit this section!
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It will be automatically generated by the script.
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*/}
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---
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[Edit this page](https://github.com/langgenius/dify-docs/edit/main/en/guides/workflow/node/template.mdx) | [Report an issue](https://github.com/langgenius/dify-docs/issues/new?template=docs.yml)
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