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An API client calls one method from an existing API implementation. The API implementation is later updated. What change to the API implementation would require the API client's invocation logic to also be updated?
Suggested Answer: C
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Correct Answer : When a new required field is added to the method called by the API client
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>> Generally, the logic on API clients need to be updated when the API contract breaks.
>> When a new method or a child method is added to an API , the API client does not break as it can still continue to use its existing method. So these two options are out.
>> We are left for two more where 'datatype of the response if changed' and 'a new required field is added'.
>> Changing the datatype of the response does break the API contract. However, the question is insisting on the 'invocation' logic and not about the response handling logic. The API client can still invoke the API successfully and receive the response but the response will have a different datatype for some field.
>> Adding a new required field will break the API's invocation contract. When adding a new required field, the API contract breaks the RAML or API spec agreement that the API client/API consumer and API provider has between them. So this requires the API client invocation logic to also be updated.
39 comments · newest first
CL
Clare
11 months ago
I agree with C, adding required fields is a big deal!
SH
Shawn
11 months ago
Wait, what? D could also require changes if the child method is essential, right?
SH
Shizue
12 months ago
B doesn't make sense, adding a new method shouldn't affect existing ones.
HE
Helaine
12 months ago
I think C is the right answer, new required fields mean updates.
BO
Bo
1 year ago
Definitely A, changing the response type breaks everything!
GO
Goldie
1 year ago
I feel like option D is tricky. Adding a child method might not affect the existing method call, but I can't recall if it could impact the client logic in some way.
JE
Jerry
1 year ago
I practiced a similar question where adding a new method didn't require changes to existing clients, so I think option B is definitely not the right answer here.
DA
Dana
1 year ago
I'm not so sure about that. I remember something about data types being important too, like in option A. If the response type changes, wouldn't that also break the client?
CO
Corazon
1 year ago
I think option C makes sense because if a new required field is added, the client would need to provide that field in its request.
AR
Arleen
1 year ago
I'm feeling pretty confident about this one. The key is to identify the API changes that would break the client's existing invocation logic.
DY
Dyan
1 year ago
Okay, I've got a strategy here. I'll focus on the changes that would require the client code to be updated, like changes to the method signature or response data.
LO
Lorriane
1 year ago
This looks like a tricky one. I'll need to think through the different API changes and how they could impact the client code.
EU
Eura
1 year ago
Hmm, I'm a bit confused by the wording of the question. I'll need to re-read it carefully to make sure I understand the key concepts.
CA
Caprice
1 year ago
I'm a little confused by the different code fragments. I need to make sure I understand how the "import" element works and how it relates to the schema location. I'll review the question again and try to reason through the options step-by-step.
LA
Laquita
1 year ago
Hmm, I'm a bit unsure about this one. The options seem to cover different IT roles, but I'm not sure which one would have the most relevant operational knowledge for this project. I'll need to carefully consider the responsibilities of each role.
BA
Barabara
1 year ago
Okay, I think I've got it. Volt/Var control and optimization is all about regulating voltage and reactive power to keep the system stable and within acceptable limits. That's what option B is describing.
AL
Alise
2 years ago
Haha, oh boy. This is like a game of API roulette. I'm just going to go with C and hope I don't get fired for it.
ST
Stevie
2 years ago
Option D is the way to go, clearly. Adding a child method is the most logical choice here. What could possibly go wrong?
EL
Elli
2 years ago
Hmm, this is a tricky one. I'm torn between B and C, but I think C is the safest bet. Who knows what kind of weird API implementations are out there?
GL
Glory
2 years ago
Yeah, it's better to be safe and update the invocation logic just in case.
WE
Weldon
2 years ago
I agree, adding a new required field to the method called by the API client would definitely require an update.
OD
Odette
2 years ago
I agree with Annelle. Adding a required field is the only change that would force the client to update their invocation logic. The other options are just enhancements that the client can ignore.
RO
Rosamond
2 years ago
So, it's important for the client to stay updated with any required field changes in the API implementation.
PR
Precious
2 years ago
Yeah, the other options are just enhancements that the client can choose to ignore.
CA
Carli
2 years ago
I agree, that's the only change that would require the client to update their invocation logic.
PE
Pearline
2 years ago
I think the answer is C) When a new required field is added to the method called by the API client.
ER
Erick
2 years ago
I think the answer is B) When a new method is added to the resource used by the API client. That would definitely require updating the API client's invocation logic.
AN
Annelle
2 years ago
Option C is definitely the correct answer. Changing the data type or adding a new method wouldn't require the client to update their code, but adding a new required field would break the contract.
ME
Melda
2 years ago
Exactly, adding a new required field changes the contract between the API client and the implementation.
YV
Yvette
2 years ago
Yes, that's right. Changing the data type or adding a new method wouldn't necessarily break the client's code.
TA
Tamesha
2 years ago
Option C is definitely the correct answer. Changing the data type or adding a new method wouldn't require the client to update their code, but adding a new required field would break the contract.
LI
Lisha
2 years ago
D) When a child method is added to the method called by the API client
OL
Olene
2 years ago
C) When a new required field is added to the method called by the API client
JU
Julieta
2 years ago
B) When a new method is added to the resource used by the API client
GR
Gregg
2 years ago
I agree, option C is the correct answer. Adding a new required field would definitely require the client to update their code.
JA
Janine
2 years ago
A) When the data type of the response is changed for the method called by the API client
NI
Nicholle
2 years ago
I see your point, Margurite. But I think it could also be D) When a child method is added to the method called by the API client.
MA
Margurite
2 years ago
I disagree, I believe the correct answer is C) When a new required field is added to the method called by the API client.
JU
Julieta
2 years ago
I think the answer is A) When the data type of the response is changed for the method called by the API client.