HTTP Query smart service

maheshp460

Certified Associate Developer

over 7 years ago

Hello Folks,

I am planing on using the HTTP Query smart service to consume REST API on an external system. Here are my questions
1. Does this smart service allow to make HTTPS calls?
2. If so, is there some configuration that needs to be done in Appian?
3. I need to make POST and DELETE calls. From documentation, appears this can be done.
4. How does authorization work? Can I use in the header like this: name: Authorization, value: "Bearer sxyslesmsdyyxxx"

Thanks in advance and Happy New Year.

Discussion posts and replies are publicly visible

0 Sathya Srinivasan
Appian Employee
over 7 years ago

You should be able to call HTTPS. Make sure the Certificate is either in Appian admin/certificate repo or in the JVM keystore. You should be able to pass Header Keys and Header Values as well.
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0 maheshp460
Certified Associate Developer
over 7 years ago

Thanks Sathya. If the API server is within the firewall, need to use certificates?
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0 Andrew P Gramann
Certified Lead Developer
over 7 years ago

HTTPS uses at least 1 certificate by definition, but you MAY not have to do anything to get it to work. In other words, it might all be handled behind the scenes:

* If the API Server uses a server certificate which was issued by a publicly trusted certificate authority, then you should not have to do anything.
* If the certificate was issues by an internal certificate authority, then you will probably have to import the root CA's public key into the JVM keystore.
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0 maheshp460
Certified Associate Developer
over 7 years ago

Thanks Andrew.
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0 maheshp460
Certified Associate Developer
over 7 years ago

I tried using the Httpquery Smart Service but running into issues as below:
Message: HTTP/1.1 401 Unauthorized, Details: No details available
For the request url:

EndPoint/getinfo

What am I missing? Where I can get more details.
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0 chandolum
A Score Level 1
over 7 years ago

@Maheshp, You need to configure authentication by using. a!httpAuthenticationBasic() function if you want to use this function you need to configure your service credentials in Administration console page under Third party credentials section. please find more details in the following link.
https://forum.appian.com/suite/help/16.3/Connector_Functions.html#a-httpauthenticationbasic
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0 maheshp460
Certified Associate Developer
over 7 years ago

For the same service resource, I am able use GET method by using a!httpQuery() in an expression, by passing in the header Authorization: "Bearer SomeTokenValue". Does Httpquery have a different authorization scheme?
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0 narasimhaadityac
A Score Level 2
over 7 years ago

Hi Mahesh, please swap the Params and values and try once. It looks from the source code they are mapped in reverse.
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0 gayatriv55 over 6 years ago in reply to maheshp460

Httpquery supports the same pattern of authorization. there may be some wrong coding from your end because same pattern is working for me.
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