AWS Lambda endpoint only show gray scale image

[giswqs]

I deployed TiTler to Amazon Lambda using https://serverlessrepo.aws.amazon.com/applications/us-east-1/552819999234/TiTiler and got the endpoint URL. However, the image rendered using my own endpoint only shows gray scale image, while the demo TiTiler endpoint (https://titiler.xyz/) can show a color image. Any advice?

My endpiont

TiTiler demo endpoint

[giswqs]

I think I found the problem. Using the demo endpoint, cog/statistics works, but my own endpoint returns {'detail': 'Not Found'}. Is it because the AWS template uses an older version of TiTiler that does not support cog/statistics?

endpoint= 'https://titiler.xyz' 
r = requests.get(
f"{endpoint}/cog/statistics",
params={
    "url": url,
},
).json()
r

[giswqs]

It turns out that the Amazon Application Registry uses TiTiler v0.3.1 while the demo endpoint uses v0.7.0.

v0.3.1 does not support /cog/statistics.

The next step is to figure out how to update TiTiler on AWS. I am new to Amazon Lambda. Still learning.

[giswqs]

Sounds good. Thanks.

[giswqs]

You are right. As of now, Python 3.10 is still not supported yet aws/aws-lambda-base-images#31

[vincentsarago]

lambda-layer and SAM application are now up to date!

[vincentsarago]

https://github.com/lambgeo/titiler-layer#sam-application

[giswqs]

Awesome! Thank you. I will try it out

[giswqs]

@vincentsarago The new version works like a charm. Thank you.