Specify resolution result Content-Type #1168
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clehner
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OR13,
csuwildcat,
thehenrytsai,
tplooker,
troyronda and
xinaxu
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csuwildcat
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Feb 14, 2022
| - `updateCommitment` is the commitment for the next update operation as defined in [commitment schemes](https://identity.foundation/sidetree/spec/#commitment-schemes). | ||
| - `recoveryCommitment` is the commitment for the next recover or deactivate operation as defined in [commitment schemes](https://identity.foundation/sidetree/spec/#commitment-schemes). | ||
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| The DID Resolution Result response ****MUST**** contain a `Content-Type` HTTP header with value `application/ld+json;profile="https://w3id.org/did-resolution"`. |
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I am wondering why we would set LD here, as we were hoping to use just plain JSON. The output doc should parse as either, but I think folks were inclined to use plain JSON as the default.
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This adds a requirement for a DID Resolution Result HTTP response to set a Content-Type header to indicate that it is a DID Resolution Result, as specified in DID Resolution:
Setting this Content-Type header is proposed in a PR to the ION implementation: decentralized-identity/ion#244.
Without the Content-Type header, a resolver-client might expect the response to be a DID Document rather than a DID Resolution Result, as https://w3c-ccg.github.io/did-resolution/#bindings-https currently specifies that if the Accept header is not used, the HTTP response body contains the DID Document (
didDocumentStream) rather than the DID Resolution Result object. Determining the response type from the response body (content sniffing) would be possible, but it may be preferable to rely on the Content-Type header. With this header set, a client can determine that they've received a DID Resolution Result object rather than a DID document, without having to parse the response body.