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Docs: Update CallToolResult parsing in README #812

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Docs: Update CallToolResult parsing in README #812

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19eb2e8
Docs: Update CallToolResult parsing in README
functicons May 27, 2025
e896ce2
Docs: add import for mcp.type
functicons May 27, 2025
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34 changes: 33 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -779,6 +779,22 @@ async def run():

# Call a tool
result = await session.call_tool("tool-name", arguments={"arg1": "value"})
# Parse the result (type: CallToolResult)
for item in result.content:
if isinstance(item, types.TextContent):
# Extract text directly from TextContent
print(f"Tool output (TextContent): {item.text}")
elif isinstance(item, types.EmbeddedResource):
# Check if the embedded resource contains text
if isinstance(item.resource, types.TextResourceContents):
print(f"Tool output (EmbeddedResource - Text): {item.resource.text}")
elif isinstance(item.resource, types.BlobResourceContents):
print(f"Tool output (EmbeddedResource - Blob): URI {item.resource.uri}, MIME Type {item.resource.mimeType}")
elif isinstance(item, types.ImageContent):
# Showing only a snippet of image data
print(f"Tool output (ImageContent): MIME Type {item.mimeType}, Data (base64): {item.data[:30]}...")
else:
print(f"Tool output (Unknown Content Type): {type(item)}")


if __name__ == "__main__":
Expand All @@ -791,7 +807,7 @@ Clients can also connect using [Streamable HTTP transport](https://modelcontextp

```python
from mcp.client.streamable_http import streamablehttp_client
from mcp import ClientSession
from mcp import ClientSession, types


async def main():
Expand All @@ -807,6 +823,22 @@ async def main():
await session.initialize()
# Call a tool
tool_result = await session.call_tool("echo", {"message": "hello"})
# Parse the result (type: CallToolResult)
for item in tool_result.content:
if isinstance(item, types.TextContent):
# Extract text directly from TextContent
print(f"Tool output (TextContent): {item.text}")
elif isinstance(item, types.EmbeddedResource):
# Check if the embedded resource contains text
if isinstance(item.resource, types.TextResourceContents):
print(f"Tool output (EmbeddedResource - Text): {item.resource.text}")
elif isinstance(item.resource, types.BlobResourceContents):
print(f"Tool output (EmbeddedResource - Blob): URI {item.resource.uri}, MIME Type {item.resource.mimeType}")
elif isinstance(item, types.ImageContent):
# Showing only a snippet of image data
print(f"Tool output (ImageContent): MIME Type {item.mimeType}, Data (base64): {item.data[:30]}...")
else:
print(f"Tool output (Unknown Content Type): {type(item)}")
```

### OAuth Authentication for Clients
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